{"title":"JeffTron","description":"\u003cdiv class=\"term-description\"\u003e\n\u003cp\u003eJeffTron was founded in the Czech Republic in 2011 and specializes in manufacturing electronic devices for airsoft guns. JeffTron is known for producing innovative MOSFET units and microcontroller systems. One of the great things about JeffTron as a manufacturer is that it listens to its users and continuously strives to improve its products.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"jefftron-mosfet-v2","title":"Jefftron Mosfet - V2","description":"\u003cp\u003eJefftron Mosfet - V2 integrates an extremely small MOSFET directly onto the Version 2 mechanical switch contacts, allowing the MOSFET to be installed entirely inside the gearbox with ease. The circuit prevents arcing that occurs in traditional mechanical trigger systems, which eventually leads to carbonized switch contacts. It reduces the electrical resistance compared to a mechanical switch, allowing the motor to draw more power from the battery. Lower resistance makes the electrical system more efficient, resulting in higher rate of fire and reduced trigger response time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003cbr\u003e\n\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMOSFET integrated with SHS-manufactured V2 switch contacts\u003c\/li\u003e\n\u003cli\u003eEasy to install in all V2 gearboxes\u003c\/li\u003e\n\u003cli\u003eUse a maximum of 1.5qmm (AWG16) power wires and 25qmm (AWG21) signal wire\u003c\/li\u003e\n\u003cli\u003eDesigned for continuous use with up to 25A current. For heavy builds, we recommend the \u003ca href=\"https:\/\/www.atom-airsoft.fi\/tuote\/jefftron-mosfet-ii-johdotettuna\/\"\u003eMosfet II circuit\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eCompatible with all batteries up to 17 V (Ni-xx 8.4V – 14.4V, LiPo 7.4V – 14.8V, LiFe 9.9V – 13.2V)\u003cbr\u003e\n\u003cstrong\u003eD CIRCUIT INSTRUCTIONS: You can download the English manual \u003c\/strong\u003e\u003ca title=\"manual mosfet-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-v2.pdf\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003c\/pdf\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eWARNING! Installation should be performed by a professional who can make \u003cem\u003ehigh-quality\u003c\/em\u003e solder joints and is experienced in repairing airsoft guns! \u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003eWiring example:\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v2.png\" alt=\"\"\u003e\u003cimg class=\"center\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/product_chart.png\" alt=\"tabulka_produktu\"\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54236932309340,"sku":"660902437436","price":24.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v2-front.jpg?v=1743370412"},{"product_id":"jefftron-mosfet-v3-johdotus-rataslaatikon-paalle","title":"Jefftron Mosfet - V3, wiring on top of the gearbox","description":"\u003cp\u003eJefftron Mosfet – V3 combines an extremely compact mosfet directly with Version 3 mechanical switch contacts, allowing the mosfet to be installed entirely inside the gearbox with ease. The circuit prevents arcing that occurs in traditional mechanical trigger systems, which eventually leads to carbonized contact surfaces. It reduces the electrical resistance compared to a mechanical switch, allowing the motor to draw more power from the battery. Lower resistance makes the electrical system more efficient, resulting in higher rate of fire and reduced trigger response time.\u003c\/p\u003e\n\u003cp\u003eThe package includes suitable connectors for the motor and fuse, as well as heat shrink tubing. In addition, a highly conductive T-connector (Deans) is included for battery connection. The connectors are separate and require soldering to the wires during installation. In the wired version, the wires connected to the circuit itself are pre-soldered to simplify assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003cbr\u003e\n\u003c\/strong\u003e– Mosfet integrated with SHS-manufactured V3 switch contacts\u003cbr\u003e\n– Easy to install in all Marui V3-compatible gearboxes\u003cbr\u003e\n– Pre-soldered wires on the circuit for easier assembly. \u003cstrong\u003eNOTE!\u003c\/strong\u003e Battery, motor, and fuse connectors are not pre-installed!\u003cbr\u003e\n– Circuit coated with a transparent varnish for moisture protection.\u003cbr\u003e\n– Designed to withstand up to 75A current spikes and 25A continuous current. For heavy builds, we recommend the JeffTron \u003cstrong\u003eMosfet II\u003c\/strong\u003e circuit.\u003cbr\u003e\n– Compatible with all batteries up to 17 V (Ni-xx 8.4V – 14.4V, LiPo 7.4V – 14.8V, LiFe 9.9V – 13.2V)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCIRCUIT MANUAL: You can download the English manual \u003c\/strong\u003e\u003ca title=\"manual mosfet-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-v3-above-gearbox.pdf\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWARNING! Installation should be performed by a professional who can make \u003cem\u003ehigh-quality\u003c\/em\u003e solder joints and is experienced in repairing airsoft guns! Poor soldering and connections increase the load on the circuit and may cause damage.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg class=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v3_nad_mechabox.png\" width=\"676\" height=\"680\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/product_chart.png\" alt=\"tabulka_produktu\" width=\"811\" height=\"560\"\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54236933816668,"sku":"0660902437566","price":38.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v3-nad-mech-1.jpg?v=1743370427"},{"product_id":"jefftron-mosfet-ii-johdotettuna","title":"Jefftron Mosfet II, wired","description":"\u003cp\u003eMosfet II is a MOSFET unit designed by professionals for heavy AEG upgrades. The MOSFET improves the replica’s rate of fire and battery life.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- Factory-preinstalled wires for easier installation. The wires are long enough for any airsoft replica. Cut the wires to the desired length and attach the included connectors.\u003cbr\u003e\n- Power wire specification: 1.5qmm (AWG16)\u003cbr\u003e\n- Signal wire specification: 0.25qmm (AWG24)\u003cbr\u003e\n- The circuit is coated with lacquer for moisture protection\u003cbr\u003e\n- Designed to withstand the load generated by an M210 spring (up to 150A current spikes or 50A continuous current, for a maximum of 30 seconds at a time)\u003cbr\u003e\n- Compatible with all batteries up to 17 V (NiMh 8.4V – 14.4V, LiPo 7.4V – 14.8V, LiFe 9.9V – 13.2V)\u003cbr\u003e\n- Circuit dimensions: 25x12x7mm\u003cbr\u003e\n- No power consumption in standby\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit manual:\u003c\/strong\u003e You can download the English manual \u003ca href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-II-kab.pdf\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003cbr\u003e\n\u003cstrong\u003e\u003cbr\u003e\nPackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- MOSFET unit with wires\u003cbr\u003e\n- Deans T male connector\u003cbr\u003e\n- 30A mini fuse\u003cbr\u003e\n- 4x 2.8mm female spade connectors\u003cbr\u003e\n- 6x black heat shrink tubing pieces 3.2mm - length 20mm\u003cbr\u003e\n- 3x black heat shrink tubing pieces 4.8mm - length 20mm\u003cbr\u003e\n- English installation manual\u003c\/pdf\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWARNING! Installation should be performed by a professional who can make \u003cem\u003ehigh-quality\u003c\/em\u003e solder joints and is experienced in repairing airsoft replicas! Poor soldering and connections increase the load on the circuit and may cause damage.\u003c\/strong\u003e\u003c\/h3\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54236935061852,"sku":"660902437481","price":34.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-ii-kab.jpg?v=1743370439"},{"product_id":"jefftron-mosfet-ii","title":"Jefftron Mosfet II","description":"\u003cp\u003eMosfet II is a MOSFET unit designed by professionals for heavy AEG upgrades. The MOSFET improves the replica’s rate of fire and battery efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003cbr\u003e\n\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- Supports power wires up to 1.5qmm (AWG16)\u003cbr\u003e\n- Supports signal wires up to 0.25qmm (AWG24)\u003cbr\u003e\n- Circuit coated with lacquer for moisture protection\u003cbr\u003e\n- Designed to handle the load generated by an M210 spring (up to 150A current spikes or 50A continuous current, for a maximum of 30 seconds at a time)\u003cbr\u003e\n– Compatible with all batteries up to 17 V (NiMh 8.4V – 14.4V, LiPo 7.4V – 14.8V, LiFe 9.9V – 13.2V)\u003cbr\u003e\n- Circuit dimensions: 25x12x7mm\u003cbr\u003e\n- No power consumption in standby\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit instructions:\u003c\/strong\u003e You can download the English manual \u003ca href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-II-kab.pdf\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003cbr\u003e\n\u003cstrong\u003e\u003cbr\u003e\nPackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- MOSFET unit\u003cbr\u003e\n- Heat shrink tubing for the circuit\u003cbr\u003e\n- English installation manual\u003c\/pdf\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWARNING! Installation should be performed by a professional capable of making \u003cem\u003ehigh-quality\u003c\/em\u003e solder joints and experienced in repairing airsoft replicas! Poor soldering and connections increase the load on the circuit and may cause damage.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg class=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet_ii_en.png\" width=\"700\" height=\"301\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/product_chart.png\" alt=\"tabulka_produktu\" width=\"711\" height=\"490\"\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54236936274268,"sku":"660902437474","price":21.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-ii-top_1_db4a1ef7-0e4c-4b97-9d75-5940ede57db1.jpg?v=1743370451"},{"product_id":"jefftron-leviathan-v2-optinen-johdotus-taakse-cnc-liipaisin","title":"Jefftron Leviathan V2, optical (rear wiring + CNC trigger)","description":"\u003cp\u003eThe Jefftron Leviathan V2 Optical is one of the most advanced microprocessor-controlled ETU (electronic trigger unit) boards on the airsoft market. The Jefftron Leviathan V2 Optical monitors the gear position in real time using \u003cstrong\u003etwo optical sensors\u003c\/strong\u003e. The Leviathan unit can be easily programmed via \u003cstrong\u003eBluetooth\u003c\/strong\u003e using a smartphone (iOS or Android).\u003c\/p\u003e\n\u003cp\u003eThe included CNC-machined aluminum adjustable special trigger allows you to set the trigger pull to as little as \u003cstrong\u003e0.13mm\u003c\/strong\u003e!\u003c\/p\u003e\n\u003cp\u003eThe V2 designation means this unit is compatible with all electric airsoft guns using a version 2 gearbox. Leviathan adds a wide range of new features to your AEG and improves existing functions. With this unit, you can control your gun’s fire modes, rate of fire (ROF), pre-cocking, active braking, protect LiPo\/LiFe batteries from over-discharge, and much more.\u003c\/p\u003e\n\u003cp\u003eThe Leviathan unit is fully installed inside the version 2 gearbox, replacing the traditional trigger switch assembly. The unit comes pre-wired with complete wiring, including a 40A mini fuse and Deans\/T-connectors. No soldering is required during installation!\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat features does the Leviathan unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust and add all fire modes to any selector position (SAFE - SEMI - AUTO).\u003c\/li\u003e\n\u003cli\u003eThree different burst fire modes. Each burst length adjustable between 2 - 20 rounds.\u003c\/li\u003e\n\u003cli\u003eOption to stop firing when the magazine is empty. Magazine change can be signaled to the gun via an additional switch (sold separately).\u003c\/li\u003e\n\u003cli\u003eLimit the rate of fire by adding pauses between shots while maintaining an extremely fast trigger response, even when reducing full-auto speed via software.\u003c\/li\u003e\n\u003cli\u003eAdjustable active brake strength, which can also be disabled.\u003c\/li\u003e\n\u003cli\u003e\"Pre-cocking\" function for instant, delay-free semi-auto shots.\u003c\/li\u003e\n\u003cli\u003eOption to add a delay between shots to simulate the effect of recoil on firing speed. Delay adjustable between 0.1 - 4 seconds.\u003c\/li\u003e\n\u003cli\u003eLow voltage warning for LiPo or LiFe batteries. Works with 2S - 4S LiPo and 3S - 4S LiFe batteries.\u003c\/li\u003e\n\u003cli\u003eUser can save multiple configuration profiles.\u003c\/li\u003e\n\u003cli\u003eSoftware displays actual battery voltage with a color-coded indicator for charge level.\u003c\/li\u003e\n\u003cli\u003eThree separate shot counters: total lifetime shots, user-resettable counter, and one that resets when the battery is disconnected.\u003c\/li\u003e\n\u003cli\u003eError log records all errors during the unit’s lifetime.\u003c\/li\u003e\n\u003cli\u003eLeviathan V2 monitors current, voltage, and temperature, protecting components from damage in case of failure.\u003c\/li\u003e\n\u003cli\u003eMotor vibrates and beeps to provide feedback to the user.\u003c\/li\u003e\n\u003cli\u003eProgramming settings are saved in real time to the Leviathan V2 memory unit, so you won’t lose settings if Bluetooth disconnects or the battery is removed during adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable fire modes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cem\u003eEach of the modes below can be assigned to any selector position (SAFE - SEMI - AUTO).\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAFE: Trigger pull does nothing, gun is on safe.\u003c\/li\u003e\n\u003cli\u003eSEMI: Fires one shot per trigger pull.\u003c\/li\u003e\n\u003cli\u003eSEMI\/BurstX: Short pull fires one shot, long pull fires a preset burst.\u003c\/li\u003e\n\u003cli\u003e\"Double trigger\": Fires once on pull and once on release (two shots per trigger cycle).\u003c\/li\u003e\n\u003cli\u003eBurstX: Fires a burst with one trigger pull.\u003c\/li\u003e\n\u003cli\u003eBurstX\/BurstY: Short pull fires burstX, long pull fires burstX followed by burstY.\u003c\/li\u003e\n\u003cli\u003eBurstX\/Full: Short pull fires burstX, long pull fires full-auto.\u003c\/li\u003e\n\u003cli\u003eFull: Fires full-auto as long as the trigger is held.\u003c\/li\u003e\n\u003cli\u003eVirtual reload: Pull the trigger to virtually reload the magazine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes CNC-machined trigger with adjustable travel via set screw.\u003c\/li\u003e\n\u003cli\u003eElectronic board coated with lacquer for water protection.\u003c\/li\u003e\n\u003cli\u003ePre-cocking function requires an anti-reversal latch to prevent gear rollback.\u003c\/li\u003e\n\u003cli\u003eDesigned to operate with batteries up to 17V. Compatible with 8.4 - 12V NiMH and 7.4 - 14.8V lithium-based batteries.\u003c\/li\u003e\n\u003cli\u003eParts removed from gearbox during installation: cut-off lever, original trigger, switch contacts, and safety parts. Original trigger can still be used with the Leviathan board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLeviathan manual:\u003c\/strong\u003e Download the installation and user manual \u003ca title=\"manual_leviathan-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_leviathan-V2_optical.pdf\"\u003eHERE\u003c\/a\u003e \u003cpdf mb englanti\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDownload the Leviathan app:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.jefftron.net\/application\"\u003ehttps:\/\/www.jefftron.net\/application\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- Leviathan V2 Optical with rear wiring. Wiring includes Deans\/T-connector and 40A fuse slot. Motor wires with standard motor connectors.\u003cbr\u003e\n- CNC-machined black trigger with adjustable travel.\u003cbr\u003e\n- Screw set for securing Leviathan inside the gearbox.\u003cbr\u003e\n- Foam pad for Leviathan installation.\u003cbr\u003e\n- English installation guide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAFETY INSTRUCTIONS:\u003c\/strong\u003e\u003cbr\u003e\n- Installing the unit inside a gearbox requires knowledge and skill in airsoft gun mechanics.\u003cbr\u003e\n- Read the manual before installation to avoid damage!\u003cbr\u003e\n- Short circuit or incorrect battery connection will immediately destroy the unit! Incorrect wiring voids warranty and may cause battery explosion!\u003cbr\u003e\n- Always disconnect the battery when the gun is not in use! Otherwise, the unit may slowly drain the battery, rendering it unusable. When connected, Leviathan draws a small standby current.\u003cbr\u003e\n- Always ensure the barrel is pointed in a safe direction before connecting the battery!\u003cbr\u003e\n- Do not modify, repair, expose the Leviathan V2 board to liquids or heat.\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/www.youtube.com\/watch?v=ReY-9nVii8Q\u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-v2_optical_scheme_stock.png\"\u003e\u003cimg style=\"color: #333333; font-size: 16px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan.png\" alt=\"Leviathan banner\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237009838428,"sku":"JEF1152239456","price":159.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-v2-optical.jpg?v=1763408597"},{"product_id":"jefftron-aep-mosfet-johdotettuna","title":"Jefftron AEP Mosfet wired","description":"\u003cp\u003eThe AEP Mosfet is a professionally manufactured mosfet circuit designed for upgrading electric airsoft pistols (AEP). The mosfet improves the replica’s rate of fire and battery life.\u003c\/p\u003e\n\u003cp\u003eThe AEP Mosfet fits the following models without modifying the electric pistol: CM.030 (G18C), CM.121 (Desert Eagle), CM.122 (SIG P226), CM.123 (Colt M1911), CM.125 (H\u0026amp;K USP), CM.126 (Beretta M92F), CM.127 (Phantom), CM.128 (Hi-Capa 5.1), Tokyo Marui G18C AEP, Tokyo Marui Beretta M93R AEP, Tokyo Marui Beretta M9A1 AEP, Tokyo Marui HK USP AEP, Umarex HK USP AEP, Double Eagle M81 USP.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended battery: \u003c\/b\u003e\u003ca href=\"https:\/\/www.atom-airsoft.fi\/tuote\/turnigy-nano-tech-plus-300mah-7-4v-lipo-akku-70-140c-jst-liitin\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTurnigy Nano-Tech Plus 300mAh 7.4v LiPo battery 70-140C\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003cbr\u003e\n\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMosfet improves the replica’s rate of fire and battery life\u003c\/li\u003e\n\u003cli\u003eVery compact circuit – AEP mosfet uses Micro mosfet II\u003c\/li\u003e\n\u003cli\u003ePower wire specs: 1.5qmm (AWG16)\u003c\/li\u003e\n\u003cli\u003eSignal wire specs: 0.25qmm (AWG24)\u003c\/li\u003e\n\u003cli\u003ePre-wired circuit allows very quick and easy installation\u003c\/li\u003e\n\u003cli\u003eCircuit coated with lacquer for moisture protection\u003c\/li\u003e\n\u003cli\u003eMosfet can be used with any AEP upgrade as it is designed to handle the load generated by an M160 spring (up to 75A current spikes or 25A continuous current, maximum 30 seconds at a time)\u003c\/li\u003e\n\u003cli\u003eDesigned to work with all batteries up to 17 V (NiMh 8.4V – 14.4V, LiPo 7.4V – 14.8V, LiFe 9.9V – 13.2V)\u003c\/li\u003e\n\u003cli\u003eCircuit dimensions: 15x7x5mm\u003c\/li\u003e\n\u003cli\u003eNo power consumption in idle mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit instructions:\u003c\/strong\u003e You can download the English manual \u003ca href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-AEP.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003cbr\u003e\n\u003cstrong\u003e\u003cbr\u003e\nPackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- Mosfet circuit pre-wired with JST connector\u003cbr\u003e\n- English installation manual\u003c\/pdf\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWARNING! Installation should be done by a professional who can make \u003cem\u003ehigh-quality\u003c\/em\u003e solder joints and is experienced in repairing airsoft replicas! Poor soldering and connections increase the load on the circuit and may cause damage.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/wp-content\/uploads\/2019\/04\/aep_mosfet-1.png\"\u003e\u003cimg class=\"aligncenter wp-image-312997 size-large\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/aep_mosfet-1-1024x767.png\" alt=\"\" width=\"1024\" height=\"767\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/wp-content\/uploads\/2019\/04\/product_chart.png\"\u003e\u003cimg class=\"aligncenter wp-image-312994 size-large\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/product_chart-1024x728.png\" alt=\"\" width=\"1024\" height=\"728\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237031727452,"sku":"660902437597","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/aep-mosfet.jpg?v=1743371841"},{"product_id":"jefftron-mosfet-v3","title":"Jefftron Mosfet V3","description":"\u003cp\u003eJefftron Mosfet – V3 integrates an extremely compact mosfet directly with Version 2 mechanical switch contacts, allowing the mosfet to be installed entirely inside the gearbox with ease. The circuit prevents sparking that occurs in traditional mechanical trigger systems, which eventually leads to carbonized switch contacts. It reduces the electrical resistance compared to a mechanical switch, allowing the motor to draw more power from the battery. Lower resistance makes the electrical system more efficient, resulting in higher rate of fire and reduced trigger delay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003cbr\u003e\n\u003c\/strong\u003e– Mosfet integrated with SHS-manufactured V3 switch contacts\u003cbr\u003e\n– Easy to install in all V3 gearboxes\u003cbr\u003e\n– Use a maximum of 1.5qmm (AWG16) power wires and 25qmm (AWG21) signal wire\u003cbr\u003e\n– Designed for continuous use with up to 25A current. For heavy builds, we recommend the \u003ca href=\"https:\/\/www.atom-airsoft.fi\/tuote\/jefftron-extreme-mosfet-with-wiring\/\"\u003eExtreme mosfet\u003c\/a\u003e or Mosfet II circuit.\u003cbr\u003e\n– Compatible with all batteries up to 17 V (Ni-xx 8.4V – 14.4V, LiPo 7.4V – 14.8V, LiFe 9.9V – 13.2V)\u003cbr\u003e\n\u003cstrong\u003eD CIRCUIT INSTRUCTIONS: You can download the English manual \u003c\/strong\u003e\u003ca title=\"manual mosfet-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-v2.pdf\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWARNING! Installation should be performed by a professional who can make \u003cem\u003ehigh-quality\u003c\/em\u003e solder joints and is experienced in repairing airsoft guns! \u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003eWiring example:\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v3.png\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"center\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/product_chart.png\" alt=\"tabulka_produktu\"\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237155361116,"sku":"660902437535","price":24.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v3.jpg?v=1743373857"},{"product_id":"jefftron-leviathan-evo3","title":"Jefftron Leviathan, EVO3","description":"\u003cp\u003eLeviathan - EVO3 is an advanced microprocessor-controlled MOSFET unit programmable via Bluetooth. The EVO3 designation means this unit is compatible with \u003ca href=\"https:\/\/www.atom-airsoft.fi\/?s=ASG+CZ+Scorpion+EVO+3\u0026amp;post_type=product\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eASG CZ Scorpion EVO 3\u003c\/a\u003e airsoft guns. Leviathan brings a wide range of new features to the EVO3 AEG and improves existing functions. With this unit, you can control your gun’s fire modes, rate of fire (ROF), pre-cocking, active braking, protect LiPo\/LiFe batteries from over-discharge, and much more. All features are managed via a smartphone app (Android and iOS). The Leviathan unit is installed inside the EVO3 gearbox, replacing the traditional trigger contacts. It comes with pre-installed wiring, including a 30A mini fuse and Deans\/T-connectors. No soldering required during installation!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote!\u003c\/strong\u003e The gearbox and trigger shown in the picture are not included with the unit.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat features does the Leviathan unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust and add all fire modes in any selector position (SAFE - SEMI - AUTO).\u003c\/li\u003e\n\u003cli\u003eThree different burst fire modes. Each burst length adjustable between 2 - 20 shots.\u003c\/li\u003e\n\u003cli\u003eLimit the gun’s rate of fire by adding motor pauses between shots. This keeps trigger response extremely fast while reducing full-auto speed electronically.\u003c\/li\u003e\n\u003cli\u003eAdjustable active brake strength, which can also be disabled.\u003c\/li\u003e\n\u003cli\u003e\"Pre-cocking\" function for instant semi-auto response without delay.\u003c\/li\u003e\n\u003cli\u003eARL mode: Included anti-reverse latch allows pre-cocking, lower-level active braking, and use of DSG gears.\u003c\/li\u003e\n\u003cli\u003eOption to add a delay between shots to simulate the effect of recoil on shooting speed. Delay adjustable between 0.1 - 4 seconds.\u003c\/li\u003e\n\u003cli\u003eAutomatic fuse detects high current to prevent damage if something goes wrong.\u003c\/li\u003e\n\u003cli\u003eLow voltage warning for LiPo or LiFe batteries. Works with 2S - 4S LiPo and 3S - 4S LiFe batteries.\u003c\/li\u003e\n\u003cli\u003eUser can save multiple configuration profiles.\u003c\/li\u003e\n\u003cli\u003eSoftware displays real battery voltage with a color-coded indicator for charge level.\u003c\/li\u003e\n\u003cli\u003eThree separate shot counters: total lifetime shots, user-resettable counter, and one that resets when the battery is disconnected.\u003c\/li\u003e\n\u003cli\u003eError log records all errors during the unit’s lifetime.\u003c\/li\u003e\n\u003cli\u003eLeviathan - EVO3 monitors current, voltage, and temperature, protecting components from damage in case of failure.\u003c\/li\u003e\n\u003cli\u003eMotor vibrates and beeps to provide feedback to the user.\u003c\/li\u003e\n\u003cli\u003eSettings are saved in real time to Leviathan - EVO3 memory, so you won’t lose them if Bluetooth disconnects or the battery is removed during adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable fire modes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cem\u003eEach mode below can be assigned to any selector position (SAFE - SEMI - AUTO).\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAFE: Trigger pull does nothing, gun is on safe.\u003c\/li\u003e\n\u003cli\u003eSEMI: Fires one shot per trigger pull.\u003c\/li\u003e\n\u003cli\u003eSEMI\/BurstX: Short pull fires one shot, long pull fires a preset burst.\u003c\/li\u003e\n\u003cli\u003e\"Double trigger\": Fires once on pull and once on release (two shots per full trigger cycle).\u003c\/li\u003e\n\u003cli\u003eBurstX: Fires a burst with one trigger pull.\u003c\/li\u003e\n\u003cli\u003eBurstX\/BurstY: Short pull fires burstX, long pull fires burstX followed by burstY.\u003c\/li\u003e\n\u003cli\u003eBurstX\/Full: Short pull fires burstX, long pull fires full-auto.\u003c\/li\u003e\n\u003cli\u003eFull: Fires full-auto as long as the trigger is held.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy to install in ASG CZ Scorpion EVO 3 AEG, no modification to the gun or circuit required.\u003c\/li\u003e\n\u003cli\u003eCompatible with Scorpion EVO 3 - A1, Scorpion EVO 3 - A1 B.E.T., Scorpion EVO 3 - A1 carbine gearbox gen.1, 2018 version, and 2020 version. Works with standard or CNC trigger.\u003c\/li\u003e\n\u003cli\u003eARL mode: Included anti-reverse latch allows pre-cocking, lower-level active braking, and DSG gear use.\u003c\/li\u003e\n\u003cli\u003eSector gear and trigger position monitored by micro switch for perfect semi and burst timing.\u003c\/li\u003e\n\u003cli\u003eIncludes CNC-machined trigger with adjustable pull length via set screw.\u003c\/li\u003e\n\u003cli\u003eLeviathan unit comes with complete wiring for easy installation. Wires are long enough for all EVO3 gearbox setups with battery in the stock. No soldering required.\n\u003cul\u003e\n\u003cli\u003eHigh-quality pre-installed 1.5 mm² (1.5 qmm \/ AWG16) power wires with durable MPPE insulation and blue 0.34 qmm signal wire (AWG24)\u003c\/li\u003e\n\u003cli\u003ePower wire outer diameter: 2.06 mm\u003c\/li\u003e\n\u003cli\u003eSignal wire outer diameter: 1.24 mm\u003c\/li\u003e\n\u003cli\u003eWire length from gearbox rear to battery connector: 290 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eElectronic board coated with lacquer for water protection.\u003c\/li\u003e\n\u003cli\u003ePre-cocking function requires anti-reversal latch to prevent gear backspin.\u003c\/li\u003e\n\u003cli\u003eDesigned to operate with batteries up to 17V. Compatible with 8.4 - 12V NiMH and 7.4 - 14.8V lithium-based batteries.\u003c\/li\u003e\n\u003cli\u003eParts removed from gearbox during installation: cut-off lever and stock electrical components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eLinks:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.jefftron.net\/application\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eJeffTron mobile app for Leviathan on iOS and Android\u003c\/a\u003e\u003cbr\u003e\nLeviathan EVO3 manual: Download the installation and user manual \u003ca title=\"manual_leviathan-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_leviathan-EVO3.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHERE\u003c\/a\u003e \u003cpdf mb englanti\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- Leviathan - EVO3 \"drop-in module\" with front wiring. Deans\/T-connector on wires. Motor wires with standard motor connectors.\u003cbr\u003e\n- ARL mode: Anti-reverse latch, spring, and special screw\u003cbr\u003e\n- Two washers for screws\u003cbr\u003e\n- Foam pad for Leviathan installation\u003cbr\u003e\n- English installation manual\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Instructions:\u003c\/strong\u003e\u003cbr\u003e\n- Installing the unit inside the gearbox requires knowledge of airsoft gun mechanics.\u003cbr\u003e\n- Read the manual before installation to avoid damage!\u003cbr\u003e\n- Short circuit or incorrect battery connection will immediately damage the unit! Incorrect wiring voids warranty and may cause battery explosion!\u003cbr\u003e\n- Always disconnect the battery when the gun is not in use! Otherwise, the circuit may slowly drain the battery, rendering it unusable. When connected, Leviathan draws a small standby current.\u003cbr\u003e\n- Always ensure the barrel is pointed in a safe direction before connecting the battery!\u003cbr\u003e\n- Do not modify, repair, or expose the Leviathan EVO3 board to liquids or heat.\u003c\/p\u003e\n\u003ch2\u003eVIDEO: Leviathan - EVO3 Features:\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/jefftron-leviathan-evo3-11.png\"\u003e\u003cimg class=\"alignnone size-full wp-image-527053\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/jefftron-leviathan-evo3-11.png\" alt=\"JeffTron Leviathan, EVO3\" width=\"1500\" height=\"761\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/jefftron-leviathan-evo3-12.png\"\u003e\u003cimg class=\"alignnone size-full wp-image-527055\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/jefftron-leviathan-evo3-12.png\" alt=\"JeffTron Leviathan, EVO3\" width=\"1634\" height=\"1086\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237314810204,"sku":"JEF1152239457","price":144.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/jefftron-leviathan-evo3.png?v=1743375926"},{"product_id":"jefftron-leviathan-v3-optinen","title":"Jefftron Leviathan V3, optical","description":"\u003cp\u003eThe Jefftron Leviathan compatible with Version 3 gearbox is one of the most advanced microprocessor-controlled ETU (electronic trigger unit) boards on the airsoft market! The Jefftron Leviathan V3 Optical monitors the gear position in real time using \u003cstrong\u003etwo optical sensors\u003c\/strong\u003e. The Leviathan board can be easily programmed via \u003cstrong\u003eBluetooth\u003c\/strong\u003e connection using a smartphone (iOS or Android).\u003c\/p\u003e\n\u003cp\u003eWith the included foam pad that can be attached to the AK trigger mechanism, the trigger travel can be adjusted to be extremely short, achieving a so-called \"\u003cstrong\u003ehair trigger\u003c\/strong\u003e\".\u003c\/p\u003e\n\u003cp\u003eThe Leviathan V3 Optical unit supports \u003cstrong\u003eRFTS\u003c\/strong\u003e \u003cstrong\u003etechnology\u003c\/strong\u003e (Unique Real Feel Trigger System), where a separate spring mechanism simulates the trigger response of a real AK74. Jefftron collaborated with a gunsmith specialized in firearms to achieve a realistic trigger feel in the RFTS design.\u003c\/p\u003e\n\u003cp\u003eThe Leviathan series offers various expansion options through an output port on the board. (Installing additional accessories requires soldering on the PCB. Please leave modifications to a professional.)\u003c\/p\u003e\n\u003cp\u003eThe Leviathan brings a wide range of completely new features to your AEG and improves existing ones. With this unit, you can control your gun’s fire modes, rate of fire (ROF), pre-cocking, active braking, protect LiPo\/LiFe batteries from over-discharge, and much more.\u003c\/p\u003e\n\u003cp\u003eThe Leviathan unit is fully installed inside the Version 3 gearbox, replacing the traditional trigger switch contacts. The unit comes with pre-installed complete wiring, including a 40A mini fuse and Deans\/T-connectors. No soldering is required for the basic installation!\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat features does the Leviathan unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust and add all fire modes to any selector position (SAFE - SEMI - AUTO).\u003c\/li\u003e\n\u003cli\u003eThree different burst fire modes. Each mode’s burst length can be set between 2 - 20 shots.\u003c\/li\u003e\n\u003cli\u003eOption to stop firing when the magazine is empty. Magazine change can be signaled to the gun via an additional switch (sold separately).\u003c\/li\u003e\n\u003cli\u003eLimit the gun’s rate of fire by adding pauses between shots while maintaining an extremely fast trigger response, even when full-auto speed is reduced by software.\u003c\/li\u003e\n\u003cli\u003eAdjustable active brake strength, which can also be disabled.\u003c\/li\u003e\n\u003cli\u003e\"Pre-cocking\" function for instant and delay-free semi-auto shots.\u003c\/li\u003e\n\u003cli\u003eOption to add a delay between shots to simulate the effect of firearm recoil on shooting speed. Delay can be set between 0.1 - 4 seconds.\u003c\/li\u003e\n\u003cli\u003eLow voltage warning for LiPo or LiFe batteries. Works with 2S - 4S LiPo and 3S - 4S LiFe batteries.\u003c\/li\u003e\n\u003cli\u003eUser can save multiple configuration profiles.\u003c\/li\u003e\n\u003cli\u003eSoftware displays actual battery voltage with a color-coded indicator for charge level.\u003c\/li\u003e\n\u003cli\u003eThree separate shot counters: total lifetime shots, user-resettable counter, and one that resets when the battery is disconnected.\u003c\/li\u003e\n\u003cli\u003eError log records all errors during the unit’s lifetime.\u003c\/li\u003e\n\u003cli\u003eLeviathan V3 monitors current, voltage, and temperature, protecting components from damage in case of failure.\u003c\/li\u003e\n\u003cli\u003eMotor vibrates and beeps to provide feedback to the user.\u003c\/li\u003e\n\u003cli\u003eProgramming settings are saved in real time to the Leviathan V3 memory unit, so you won’t lose settings if Bluetooth disconnects or the battery is removed during adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable fire modes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cem\u003eEach fire mode below can be assigned to any selector position (SAFE - SEMI - AUTO).\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAFE: Trigger pull does nothing, gun is on safe.\u003c\/li\u003e\n\u003cli\u003eSEMI: Fires one shot per trigger pull.\u003c\/li\u003e\n\u003cli\u003eSEMI\/BurstX: Short pull fires one shot, long pull fires a preset burst.\u003c\/li\u003e\n\u003cli\u003e\"Double trigger\": Fires once on pull and once on release (two shots per trigger cycle).\u003c\/li\u003e\n\u003cli\u003eBurstX: Fires a burst with one trigger pull.\u003c\/li\u003e\n\u003cli\u003eBurstX\/BurstY: Short pull fires burstX, long pull fires burstX followed by burstY.\u003c\/li\u003e\n\u003cli\u003eBurstX\/Full: Short pull fires burstX, long pull fires full-auto.\u003c\/li\u003e\n\u003cli\u003eFull: Fires full-auto as long as the trigger is held.\u003c\/li\u003e\n\u003cli\u003eVirtual reload: Pull the trigger to virtually reload the magazine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Leviathan electronic board is coated with lacquer for water protection.\u003c\/li\u003e\n\u003cli\u003ePre-cocking function requires an anti-reversal latch to prevent gear backspin.\u003c\/li\u003e\n\u003cli\u003eDesigned to operate and withstand up to 17V batteries. Compatible with 8.4 - 12V NiMH and 7.4 - 14.8V lithium-based batteries.\u003c\/li\u003e\n\u003cli\u003eParts removed from the gearbox during installation: cut-off lever, original trigger, switch contacts, and safety parts. Original trigger can still be used with the Leviathan board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLeviathan manual:\u003c\/strong\u003e Download the installation and user manual \u003ca title=\"manual_leviathan-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_leviathan-V3.pdf\"\u003eHERE\u003c\/a\u003e \u003cpdf mb englanti\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDownload the Leviathan app:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.jefftron.net\/application\"\u003ehttps:\/\/www.jefftron.net\/application\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cbr\u003e\n- Leviathan - V3 Optical with Deans\/T-connector and 40A fuse slot. Motor wires with standard motor connectors.\u003cbr\u003e\n- Screw set for securing Leviathan inside the gearbox.\u003cbr\u003e\n- Foam pad for trigger sensitivity adjustment.\u003cbr\u003e\n- RFTS mechanism for realistic trigger feel.\u003cbr\u003e\n- English installation guide.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan.png\" alt=\"Leviathan banner\"\u003e\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/youtu.be\/fIbqSugvzbU\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAFETY INSTRUCTIONS:\u003c\/strong\u003e\u003cbr\u003e\n- Installing the board inside the gearbox requires understanding of airsoft gun mechanics and technical skills.\u003cbr\u003e\n- Read the manual before installing the Leviathan unit to avoid damage!\u003cbr\u003e\n- Short circuit or incorrect battery connection will immediately destroy the unit! Incorrect wiring voids the warranty and may cause the battery to explode!\u003cbr\u003e\n- Always disconnect the battery when the gun is not in use! Otherwise, the board may slowly drain the battery, rendering it unusable. When connected, Leviathan draws a small standby current.\u003cbr\u003e\n- Always ensure the barrel is pointed in a safe direction before connecting the battery!\u003cbr\u003e\n- Do not modify, repair, expose the Leviathan V3 board to liquids or heat.\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237551886684,"sku":"JEF1152239454","price":132.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-v3.jpg?v=1743379102"},{"product_id":"jefftron-leviathan-ngrs-optinen-johdotus-taakse","title":"Jefftron Leviathan NGRS, optical (rear wiring)","description":"\u003cp\u003eThe optical Tokyo Marui NGRS-compatible Jefftron Leviathan is one of the most advanced microprocessor-controlled ETU (electronic trigger unit) boards on the airsoft market. The Jefftron Leviathan NGRS optical monitors the gear position in real time using \u003cstrong\u003etwo optical sensors\u003c\/strong\u003e. The Leviathan unit can be easily programmed via \u003cstrong\u003eBluetooth\u003c\/strong\u003e using a smartphone (iOS or Android).\u003c\/p\u003e\n\u003cp\u003eThanks to the Jefftron trigger sensor, the trigger pull can be as short as \u003cstrong\u003e0.13mm\u003c\/strong\u003e!\u003c\/p\u003e\n\u003cp\u003eThe Leviathan brings a wide range of new features to your AEG and improves existing functions. With this unit, you can control your gun’s fire modes, rate of fire (ROF), pre-cocking, active braking, protect LiPo\/LiFe batteries from over-discharge, and much more.\u003c\/p\u003e\n\u003cp\u003eThe Leviathan unit is fully installed inside a Version 2 gearbox, replacing the traditional trigger switch assembly. The unit comes pre-wired with complete wiring, including a 40A mini fuse and Deans\/T-connectors. No soldering is required during installation!\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat features does the Leviathan unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust and add all fire modes to any selector position (SAFE - SEMI - AUTO).\u003c\/li\u003e\n\u003cli\u003eThree different burst fire modes. Each burst length can be set between 2 - 20 rounds.\u003c\/li\u003e\n\u003cli\u003eOption to stop firing when the magazine is empty. Magazine change can be signaled to the gun via an additional switch (sold separately).\u003c\/li\u003e\n\u003cli\u003eLimit the rate of fire by adding pauses between shots while maintaining an extremely fast trigger response, even when reducing full-auto speed via software.\u003c\/li\u003e\n\u003cli\u003eAdjustable active brake strength, which can also be disabled.\u003c\/li\u003e\n\u003cli\u003e\"Pre-cocking\" function for instant semi-auto response without delay.\u003c\/li\u003e\n\u003cli\u003eOption to add a delay between shots to simulate the effect of recoil on real firearms. Delay can be set between 0.1 - 4 seconds.\u003c\/li\u003e\n\u003cli\u003eLow voltage warning for LiPo or LiFe batteries. Works with 2S - 4S LiPo and 3S - 4S LiFe batteries.\u003c\/li\u003e\n\u003cli\u003eUser can save multiple configuration profiles.\u003c\/li\u003e\n\u003cli\u003eSoftware displays actual battery voltage with a color-coded indicator for charge level.\u003c\/li\u003e\n\u003cli\u003eThree separate shot counters: total lifetime shots, user-resettable counter, and one that resets when the battery is disconnected.\u003c\/li\u003e\n\u003cli\u003eError log records all errors during the unit’s lifetime.\u003c\/li\u003e\n\u003cli\u003eLeviathan NGRS monitors current, voltage, and temperature, protecting components from damage in case of failure.\u003c\/li\u003e\n\u003cli\u003eMotor vibrates and beeps to provide feedback to the user.\u003c\/li\u003e\n\u003cli\u003eProgramming settings are saved in real time to the Leviathan V2 memory unit, so you won’t lose settings if Bluetooth disconnects or the battery is removed during adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable fire modes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cem\u003eEach of the following fire modes can be assigned to any selector position (SAFE - SEMI - AUTO).\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAFE: Trigger pull does nothing, the gun is on safe.\u003c\/li\u003e\n\u003cli\u003eSEMI: Fires one shot per trigger pull.\u003c\/li\u003e\n\u003cli\u003eSEMI\/BurstX: Short pull fires one shot, long pull fires a preset burst.\u003c\/li\u003e\n\u003cli\u003e\"Double trigger\": Fires once on pull and once on release (two shots per full trigger cycle).\u003c\/li\u003e\n\u003cli\u003eBurstX: Fires a burst with one trigger pull.\u003c\/li\u003e\n\u003cli\u003eBurstX\/BurstY: Short pull fires burstX, long pull fires burstX followed by burstY.\u003c\/li\u003e\n\u003cli\u003eBurstX\/Full: Short pull fires burstX, long pull fires full-auto.\u003c\/li\u003e\n\u003cli\u003eFull: Fires full-auto as long as the trigger is held.\u003c\/li\u003e\n\u003cli\u003eVirtual reload: Pull the trigger to virtually reload the magazine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Leviathan electronic board is coated with lacquer for water protection.\u003c\/li\u003e\n\u003cli\u003ePre-cocking function requires an anti-reversal latch to prevent reverse gear rotation.\u003c\/li\u003e\n\u003cli\u003eDesigned to operate with batteries up to 17V. Compatible with 8.4 - 12V NiMH and 7.4 - 14.8V lithium-based batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLeviathan manual:\u003c\/strong\u003e Download the installation and user manual \u003ca title=\"manual_leviathan-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_leviathan-NGRS.pdf\"\u003eHERE\u003c\/a\u003e \u003cpdf mb english\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDownload the Leviathan app:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.jefftron.net\/application\"\u003ehttps:\/\/www.jefftron.net\/application\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- Leviathan NGRS Optical rear-wired with Deans\/T-connector and 40A fuse slot. Motor wires with standard motor connectors.\u003cbr\u003e\n- Screw set for securing Leviathan inside the gearbox.\u003cbr\u003e\n- Foam pad for Leviathan installation.\u003cbr\u003e\n- English installation guide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003cbr\u003e\n\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTokyo Marui M4 Next Generation\u003c\/li\u003e\n\u003cli\u003eTokyo Marui HK416D Next Generation\u003c\/li\u003e\n\u003cli\u003eTokyo Marui HK416C Next Generation\u003c\/li\u003e\n\u003cli\u003eTokyo Marui SCAR-L Next Generation\u003c\/li\u003e\n\u003cli\u003eTokyo Marui SCAR-H Next Generation\u003c\/li\u003e\n\u003cli\u003eTokyo Marui HK417 Next Generation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSAFETY INSTRUCTIONS:\u003c\/strong\u003e\u003cbr\u003e\n- Installing the unit inside the gearbox requires knowledge and experience with airsoft gun mechanics.\u003cbr\u003e\n- Read the manual before installation to avoid damage!\u003cbr\u003e\n- A short circuit or incorrect battery connection will immediately damage the unit! Incorrect wiring voids the warranty and may cause the battery to explode!\u003cbr\u003e\n- Always disconnect the battery when the gun is not in use! Otherwise, the unit may slowly drain the battery, rendering it unusable. When connected, Leviathan draws a small standby current.\u003cbr\u003e\n- Always ensure the barrel is pointed in a safe direction before connecting the battery!\u003cbr\u003e\n- Do not modify, repair, or expose the Leviathan NGRS board to liquids or heat.\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237552935260,"sku":"0660902437900","price":157.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-ngrs-gearbox-open.jpg?v=1743379132"},{"product_id":"jefftron-tactical-dual-switch-leviathan-lisatarvikekytkin","title":"Jefftron Dual switch, Leviathan accessory switch (discontinued product)","description":"\u003cp\u003eThe Jefftron Tactical Dual Switch brings new additional features to the Leviathan unit. The accessory switch connects to the “input” port found on the Leviathan. The installation requires soldering onto the circuit board, so please leave the installation to a professional!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeviathan V2, optical\u003c\/li\u003e\n\u003cli\u003eLeviathan V3, optical\u003c\/li\u003e\n\u003cli\u003eLeviathan NGRS, optical\u003c\/li\u003e\n\u003cli\u003eLeviathan EVO3 v1.1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith the switch, the above units can activate new features such as virtual magazine reload, ON\/OFF control for the tracer hop-up unit light, electronic magazine control, and more.\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237553983836,"sku":"0750122152186","price":29.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/tactical-dual-switch-overview.jpg?v=1743379148"},{"product_id":"jefftron-mosfet-v2-johdotus-taakse","title":"Jefftron Mosfet - V2, rear wiring","description":"\u003cp\u003eJefftron Mosfet - V2, rear wiring connects an extremely small mosfet directly to the Version 2 mechanical switch contacts, allowing the mosfet to be installed entirely inside the gearbox with ease. The circuit prevents sparking that occurs in traditional mechanical trigger systems, which eventually leads to carbonized switch contacts. The circuit reduces the electrical resistance compared to a mechanical switch. This allows the motor to draw power from the battery more efficiently. Lower resistance makes the electrical system more effective, resulting in a higher rate of fire and reduced trigger delay.\u003c\/p\u003e\n\u003cp\u003eThe package includes suitable motor and fuse connectors as well as heat shrink tubing. In addition, the package contains a highly conductive T-connector (Deans) for battery connection. The connectors are separate and require soldering the wires to the connectors during installation. In the wired version, the wires connected to the circuit itself are pre-soldered to make assembly easier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003cbr\u003e\n\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMosfet integrated with SHS-manufactured V2 switch contacts\u003c\/li\u003e\n\u003cli\u003eEasy to install in all V2 gearboxes\u003c\/li\u003e\n\u003cli\u003eUse a maximum of 1.5qmm (AWG16) power wires and 25qmm (AWG21) signal wire\u003c\/li\u003e\n\u003cli\u003eDesigned for continuous use with a maximum current of 25A. For heavy builds, we recommend the \u003ca href=\"https:\/\/www.atom-airsoft.fi\/tuote\/jefftron-mosfet-ii-johdotettuna\/\"\u003eMosfet II circuit\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eDesigned to work with all batteries up to 17 V (Ni-xx 8.4V – 14.4V, Li-Po 7.4V – 14.8V, Li-Fe 9.9V – 13.2V)\u003cbr\u003e\n\u003cstrong\u003eD CIRCUIT INSTRUCTIONS: You can download the English manual \u003c\/strong\u003e\u003ca title=\"manual mosfet-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_mosfet-v2.pdf\"\u003ehere\u003c\/a\u003e \u003cpdf kb\u003e\u003c\/pdf\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWiring example:\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v2.png\" alt=\"\"\u003e\u003cimg class=\"center\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/product_chart.png\" alt=\"tabulka_produktu\"\u003e\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237776806236,"sku":"0660902437559","price":38.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/mosfet-v2-stock_1.jpg?v=1743384273"},{"product_id":"jefftron-leviathan-v3-optinen-two-stage-trigger","title":"Jefftron Leviathan V3, optical, two-stage trigger","description":"\u003cp\u003eThe Jefftron Leviathan optical unit for version 3 gearboxes is one of the most advanced microprocessor-controlled ETU (electronic trigger unit) systems on the airsoft market! The Jefftron Leviathan V3 Optical monitors the gear position in real time using \u003cstrong\u003etwo optical sensors\u003c\/strong\u003e. The Leviathan unit can be easily programmed via \u003cstrong\u003eBluetooth\u003c\/strong\u003e using a smartphone (iOS or Android).\u003c\/p\u003e\n\u003cp\u003eWith the included foam pad that can be attached to the AK trigger mechanism, the trigger travel can be adjusted to be extremely short, achieving a so-called \"\u003cstrong\u003ehair trigger\u003c\/strong\u003e\".\u003c\/p\u003e\n\u003cp\u003eThe Leviathan V3 Optical unit supports \u003cstrong\u003eRFTS\u003c\/strong\u003e \u003cstrong\u003etechnology\u003c\/strong\u003e (Unique Real Feel Trigger System), where a separate spring mechanism simulates the trigger response of a real AK74. Jefftron worked with a gunsmith specializing in firearms to design the RFTS for a realistic trigger feel.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eTwo-stage trigger\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn addition to the RFTS solution, this product includes a new \"two-stage trigger\" with a realistic pre-travel and a distinct break point.\u003c\/p\u003e\n\u003cp\u003eThe two-stage trigger is an adapter made from 3D-printed plastic and spring steel that replicates the behavior of a two-stage trigger found in real firearms, allowing the user to know exactly when the shot will fire. This improves accuracy and creates a realistic shooting feel.\u003c\/p\u003e\n\u003cp\u003eThe two-stage trigger operates in two clearly defined stages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIn the first stage, the trigger is pulled smoothly until it hits the wall.\u003c\/li\u003e\n\u003cli\u003eIn the second stage, the trigger weight increases until the wall breaks.\u003c\/li\u003e\n\u003cli\u003eThe \"click\" of the second stage fires the shot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis solution was designed by gunsmith Tomas Linhart, like other Jefftron RFTS-family solutions. The two-stage trigger differs from the RFTS-V3 spring system included with the Leviathan V3 and offers an improved trigger response. It is also more compatible with different gearbox models than the traditional RFTS spring system. For example, it fits Retro Arms gearboxes directly without modifications.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eThe Leviathan series offers various expansion options through an output port on the board. (Installing additional accessories requires soldering on the PCB. Leave modifications to a professional.)\u003c\/p\u003e\n\u003cp\u003eThe Leviathan brings a wide range of new features to your AEG and improves existing ones. With this unit, you can control your gun’s fire modes, rate of fire (ROF), pre-cocking, active braking, protect LiPo\/LiFe batteries from over-discharge, and much more.\u003c\/p\u003e\n\u003cp\u003eThe Leviathan unit is installed entirely inside the version 3 gearbox, replacing the traditional trigger switch assembly. The unit comes with pre-installed wiring, including a 40A mini fuse and Deans\/T-connectors. No soldering is required for the basic installation!\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat features does the Leviathan unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust and add all fire modes in any selector position (SAFE - SEMI - AUTO).\u003c\/li\u003e\n\u003cli\u003eThree different burst fire modes. Each mode’s burst length can be set between 2 - 20 rounds.\u003c\/li\u003e\n\u003cli\u003eOption to stop firing when the magazine is empty. Magazine change can be signaled to the gun via an additional switch (sold separately).\u003c\/li\u003e\n\u003cli\u003eLimit the gun’s rate of fire by adding pauses between shots while maintaining an extremely fast trigger response.\u003c\/li\u003e\n\u003cli\u003eAdjustable active brake strength, which can also be disabled.\u003c\/li\u003e\n\u003cli\u003e\"Pre-cocking\" function for instant semi-auto response.\u003c\/li\u003e\n\u003cli\u003eOption to add a delay between shots to simulate the effect of recoil on shooting speed. Delay can be set between 0.1 - 4 seconds.\u003c\/li\u003e\n\u003cli\u003eLow voltage warning when using LiPo or LiFe batteries. Works with 2S - 4S LiPo and 3S - 4S LiFe batteries.\u003c\/li\u003e\n\u003cli\u003eStore multiple configuration profiles.\u003c\/li\u003e\n\u003cli\u003eSoftware displays actual battery voltage with a color-coded indicator for charge level.\u003c\/li\u003e\n\u003cli\u003eThree separate shot counters: total lifetime shots, user-resettable counter, and a counter that resets when the battery is disconnected.\u003c\/li\u003e\n\u003cli\u003eError log records all errors during the unit’s lifetime.\u003c\/li\u003e\n\u003cli\u003eLeviathan V3 monitors current, voltage, and temperature, protecting components from damage in case of failure.\u003c\/li\u003e\n\u003cli\u003eMotor vibrates and beeps to provide feedback to the user.\u003c\/li\u003e\n\u003cli\u003eSettings are saved in real time to the Leviathan V3 memory, so you won’t lose them if Bluetooth disconnects or the battery is removed during adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable fire modes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cem\u003eEach mode below can be assigned to any selector position (SAFE - SEMI - AUTO).\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAFE: Trigger pull does nothing, gun is on safe.\u003c\/li\u003e\n\u003cli\u003eSEMI: Fires one shot per trigger pull.\u003c\/li\u003e\n\u003cli\u003eSEMI\/BurstX: Short pull fires one shot, long pull fires a preset burst.\u003c\/li\u003e\n\u003cli\u003e\"Double trigger\": Fires once on pull and once on release (two shots per pull).\u003c\/li\u003e\n\u003cli\u003eBurstX: Fires a burst with one pull.\u003c\/li\u003e\n\u003cli\u003eBurstX\/BurstY: Short pull fires burstX, long pull fires burstX followed by burstY.\u003c\/li\u003e\n\u003cli\u003eBurstX\/Full: Short pull fires burstX, long pull fires full auto.\u003c\/li\u003e\n\u003cli\u003eFull: Fires full auto as long as the trigger is held.\u003c\/li\u003e\n\u003cli\u003eVirtual reload: Pull the trigger to virtually reload the magazine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Leviathan circuit is coated with lacquer for water protection.\u003c\/li\u003e\n\u003cli\u003ePre-cocking requires an anti-reversal latch in the gearbox.\u003c\/li\u003e\n\u003cli\u003eDesigned to operate with batteries up to 17V. Compatible with 8.4 - 12V NiMH and 7.4 - 14.8V lithium-based batteries.\u003c\/li\u003e\n\u003cli\u003eParts removed during installation: cut-off lever, original trigger, switch contacts, and safety parts. The original trigger can still be used with the Leviathan board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLeviathan manual:\u003c\/strong\u003e Download the installation and user manual \u003ca title=\"manual_leviathan-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_leviathan-V3.pdf\"\u003eHERE\u003c\/a\u003e \u003cpdf mb englanti\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDownload the Leviathan app:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.jefftron.net\/application\"\u003ehttps:\/\/www.jefftron.net\/application\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cbr\u003e\n- Leviathan - V3 Optical with Deans\/T connector and 40A fuse slot. Motor wires with standard motor connectors.\u003cbr\u003e\n- Screw set for securing Leviathan inside the gearbox.\u003cbr\u003e\n- Foam pad for trigger sensitivity adjustment.\u003cbr\u003e\n- RFTS mechanism for realistic trigger feel.\u003cbr\u003e\n- English installation manual.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan.png\" alt=\"Leviathan banner\"\u003e\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/youtu.be\/fIbqSugvzbU\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAFETY INSTRUCTIONS:\u003c\/strong\u003e\u003cbr\u003e\n- Installing the unit inside the gearbox requires knowledge of airsoft gun mechanics.\u003cbr\u003e\n- Read the manual before installation to avoid damage!\u003cbr\u003e\n- A short circuit or incorrect battery connection will immediately damage the unit! Incorrect wiring voids the warranty and may cause the battery to explode!\u003cbr\u003e\n- Always disconnect the battery when the gun is not in use! Otherwise, the unit may slowly drain the battery, rendering it unusable. When connected, Leviathan draws a small standby current.\u003cbr\u003e\n- Always ensure the barrel is pointed in a safe direction before connecting the battery!\u003cbr\u003e\n- Do not modify, repair, or expose the Leviathan V3 board to liquids or heat.\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237938024796,"sku":"0750122153558","price":149.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-v3_97ebb9b6-f2d9-4b54-8263-01579e9d08f5.jpg?v=1743390254"},{"product_id":"jefftron-leviathan-v2-optinen-johdotus-taakse-cnc-m4-m16-classic-liipaisin","title":"Jefftron Leviathan V2, optical (rear wiring + CNC M4\/M16 Classic trigger)","description":"\u003cp\u003e\u003cstrong\u003eNOTE! The product comes with a classic M4\/M16 style trigger (image shows Speed Trigger).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe optical version 2 compatible Jefftron Leviathan is one of the most advanced microprocessor-controlled ETU (electronic trigger unit) boards on the airsoft market. The Jefftron Leviathan V2 Optical monitors the gear position in real time using \u003cstrong\u003etwo optical sensors\u003c\/strong\u003e. The Leviathan unit can be easily programmed via \u003cstrong\u003eBluetooth\u003c\/strong\u003e using a smartphone (iOS or Android).\u003c\/p\u003e\n\u003cp\u003eThe included CNC-machined aluminum adjustable special trigger allows you to set the trigger pull to as little as \u003cstrong\u003e0.13mm\u003c\/strong\u003e!\u003c\/p\u003e\n\u003cp\u003eThe V2 designation means this unit is compatible with all electric airsoft guns using a version 2 gearbox. Leviathan adds a wide range of new features to your AEG and improves existing functions. With this unit, you can control your gun’s fire modes, rate of fire (ROF), pre-cocking, active braking, protect LiPo\/LiFe batteries from over-discharge, and much more.\u003c\/p\u003e\n\u003cp\u003eThe Leviathan unit is fully installed inside the version 2 gearbox, replacing the traditional trigger mechanism contacts. The unit comes pre-wired with complete wiring, including a 40A mini fuse and Deans\/T-connectors. No soldering is required during installation!\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat features does the Leviathan unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust and add all fire modes to any selector position (SAFE - SEMI - AUTO).\u003c\/li\u003e\n\u003cli\u003eThree different burst fire modes. Each burst length adjustable between 2 - 20 rounds.\u003c\/li\u003e\n\u003cli\u003eOption to stop firing when the magazine is empty. Magazine change can be signaled to the unit via an external switch (sold separately).\u003c\/li\u003e\n\u003cli\u003eLimit the rate of fire by adding motor pauses between shots. This keeps trigger response extremely fast while reducing full-auto speed via software.\u003c\/li\u003e\n\u003cli\u003eAdjustable active brake strength, which can also be disabled.\u003c\/li\u003e\n\u003cli\u003e\"Pre-cocking\" function for instant semi-auto response without delay.\u003c\/li\u003e\n\u003cli\u003eOption to add a delay between shots to simulate the effect of recoil on firing speed. Delay adjustable between 0.1 - 4 seconds.\u003c\/li\u003e\n\u003cli\u003eLow voltage warning for LiPo or LiFe batteries. Works with 2S - 4S LiPo and 3S - 4S LiFe batteries.\u003c\/li\u003e\n\u003cli\u003eUser can save multiple configuration profiles.\u003c\/li\u003e\n\u003cli\u003eSoftware displays actual battery voltage with a color-coded indicator for charge level.\u003c\/li\u003e\n\u003cli\u003eThree separate shot counters: total lifetime shots, user-resettable counter, and one that resets when the battery is disconnected.\u003c\/li\u003e\n\u003cli\u003eError log records all errors during the unit’s lifetime.\u003c\/li\u003e\n\u003cli\u003eLeviathan V2 monitors current, voltage, and temperature, protecting components from damage in case of failure.\u003c\/li\u003e\n\u003cli\u003eMotor vibrates and beeps to provide feedback to the user.\u003c\/li\u003e\n\u003cli\u003eProgramming settings are saved in real time to Leviathan V2 memory, so you won’t lose settings if Bluetooth disconnects or the battery is removed during adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable fire modes:\u003cbr\u003e\n\u003c\/strong\u003e\u003cem\u003eEach mode below can be assigned to any selector position (SAFE - SEMI - AUTO).\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAFE: Trigger pull does nothing, gun is on safe.\u003c\/li\u003e\n\u003cli\u003eSEMI: Fires one shot per trigger pull.\u003c\/li\u003e\n\u003cli\u003eSEMI\/BurstX: Short pull fires one shot, long pull fires a preset burst.\u003c\/li\u003e\n\u003cli\u003e\"Double trigger\": Fires once on pull and once on release (two shots per full pull).\u003c\/li\u003e\n\u003cli\u003eBurstX: Fires a burst with one trigger pull.\u003c\/li\u003e\n\u003cli\u003eBurstX\/BurstY: Short pull fires burstX, long pull fires burstX followed by burstY.\u003c\/li\u003e\n\u003cli\u003eBurstX\/Full: Short pull fires burstX, long pull fires full-auto.\u003c\/li\u003e\n\u003cli\u003eFull: Fires full-auto as long as the trigger is held.\u003c\/li\u003e\n\u003cli\u003eVirtual reload: Pull the trigger to virtually reload the magazine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes CNC-machined trigger with adjustable pull length via set screw.\u003c\/li\u003e\n\u003cli\u003eElectronic board coated with lacquer for water protection.\u003c\/li\u003e\n\u003cli\u003ePre-cocking function requires an anti-reversal latch to prevent reverse gear rotation.\u003c\/li\u003e\n\u003cli\u003eDesigned to operate with batteries up to 17V. Compatible with 8.4 - 12V NiMH and 7.4 - 14.8V lithium-based batteries.\u003c\/li\u003e\n\u003cli\u003eParts removed from gearbox during installation: cut-off lever, original trigger, contact set, and safety parts. Original trigger can be used with Leviathan board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLeviathan manual:\u003c\/strong\u003e Download the installation and user manual \u003ca title=\"manual_leviathan-v2\" href=\"https:\/\/www.jefftron.cz\/upload\/navod\/manual_leviathan-V2_optical.pdf\"\u003eHERE\u003c\/a\u003e \u003cpdf mb englanti\u003e\u003c\/pdf\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDownload Leviathan app:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.jefftron.net\/application\"\u003ehttps:\/\/www.jefftron.net\/application\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003cbr\u003e\n- Leviathan V2 Optical rear-wired with Deans\/T-connector and 40A fuse slot. Motor wires with standard motor connectors.\u003cbr\u003e\n- CNC-machined black classic curved M4\/M16 style trigger with adjustable travel.\u003cbr\u003e\n- Screw set for securing Leviathan inside the gearbox.\u003cbr\u003e\n- Foam pad for Leviathan installation.\u003cbr\u003e\n- English installation guide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAFETY INSTRUCTIONS:\u003c\/strong\u003e\u003cbr\u003e\n- Installing the unit inside a gearbox requires knowledge and skill in airsoft gun mechanics.\u003cbr\u003e\n- Read the manual before installation to avoid damage!\u003cbr\u003e\n- Short circuit or incorrect battery connection will immediately damage the unit! Incorrect wiring voids warranty and may cause battery explosion!\u003cbr\u003e\n- Always disconnect the battery when the gun is not in use! Otherwise, the unit may slowly drain the battery, rendering it unusable. When connected, Leviathan draws a small standby current.\u003cbr\u003e\n- Always ensure the barrel is pointed in a safe direction before connecting the battery!\u003cbr\u003e\n- Do not modify, repair, or expose the Leviathan V2 board to liquids or heat.\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/www.youtube.com\/watch?v=ReY-9nVii8Q\u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-v2_optical_scheme_stock.png\"\u003e\u003cimg style=\"color: #333333; font-size: 16px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan.png\" alt=\"Leviathan banner\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237938843996,"sku":"0750122152001","price":159.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/leviathan-v2-optical_b093d5ab-82e8-4877-b71e-f50bda24cd81.jpg?v=1743390276"},{"product_id":"jefftron-wire-holders-rataslaatikon-johtokiinnike-10kpl","title":"Jefftron Wire holders, gearbox wire holder (10pcs)","description":"\u003cp\u003eThese holders make it easier to install Jefftron Leviathan-V2 units and other electronic boards into the gearbox. They keep the wires in place during gearbox assembly.\u003cbr\u003e\n2 holders are enough to complete the task.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for Leviathan-V2 optical electronic units\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor gearboxes with a wider wire channel (Retroarms), the ends of the holders can be widened using pliers.\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237959618908,"sku":"750122153244","price":8.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/wires-holder.jpg?v=1743391146"},{"product_id":"jefftron-hair-trigger-adapteri-leviathan-v2-yksikolle","title":"Jefftron \"Hair trigger\" adapter for Leviathan V2 unit","description":"\u003cp\u003e3D-printed \"hair trigger\" for CNC trigger in M4\/M16 (MP5\/G3) compatible AEGs equipped with a Jefftron Leviathan unit. This adapter allows the shot to be fired with an extremely short trigger pull, only 0.15 mm of travel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for the following Leviathan-V2 optical trigger mechanisms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeviathan-V2 optical to stock\u003c\/li\u003e\n\u003cli\u003eLeviathan-V2 optical to front\u003c\/li\u003e\n\u003cli\u003eLeviathan-V2 optical to stock (Gelblaster version)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe adapter is a 3D-printed part (SLA printer)\u003c\/li\u003e\n\u003cli\u003eIntended only for installing a Jefftron CNC trigger in the M4\/M16 (MP5\/G3) series.\u003c\/li\u003e\n\u003cli\u003eThe adjustment screw on the trigger does not need to be used; it is only for fine-tuning the hair trigger.\u003c\/li\u003e\n\u003cli\u003eAttach the adapter and screw position with very strong adhesive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3D-printed hair trigger adapter\u003c\/li\u003e\n\u003cli\u003eQR code for online instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWARNING: The trigger must be installed by a professional who knows how to properly disassemble and reassemble the replica. The mechanical safety lock of this trigger does not work in the \"safe\" position.\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/www.youtube.com\/shorts\/TE2lU0kyggs\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/www.youtube.com\/shorts\/uSQGdz0PM8Q\u003c\/p\u003e","brand":"Jefftron","offers":[{"title":"Default Title","offer_id":54237959848284,"sku":"750122153169","price":3.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/hair-trigger-adapter-back.jpg?v=1743391162"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/collections\/logo-jefftron-2_280x280-e1577099718772.webp?v=1746477701","url":"https:\/\/atom-airsoft.fi\/en-ie\/collections\/jefftron.oembed","provider":"Atom Airsoft","version":"1.0","type":"link"}