{"product_id":"retroarms-8mm-split-cnc-rataslaatikko-pikajousenvaihdolla-ja-hop-up-kammiolla-versio-2","title":"Retro Arms 8mm Split CNC Gearbox with Quick Spring Change and Hop-up Chamber, Version 2","description":"\u003cp\u003eThe RetroArms 8mm Split Version 2 CNC gearbox is made from highly durable Dural EN AW 7075 T651 aircraft-grade aluminum, which offers superior mechanical strength compared to traditional structural steel. The selected materials make the Retro Arms gearbox an unparalleled alternative to conventional zinc alloy gearboxes.\u003c\/p\u003e\n\u003ch2\u003eSplit gearbox\u003c\/h2\u003e\n\u003cp\u003eThe Retro Arms split gearbox refers to a gearbox that is divided into two parts along the center. The upper part houses the piston, cylinder, cylinder head, tappet plate, nozzle, spring, and spring guide. The lower part contains the remaining components, such as the gears, trigger mechanism, and various levers.\u003c\/p\u003e\n\u003cp\u003eThe two-part design makes maintenance easier, as it allows, for example, the cylinder assembly to be replaced in an M4-style replica without removing the lower part.\u003c\/p\u003e\n\u003ch2\u003eQuick spring change\u003c\/h2\u003e\n\u003cp\u003eAll Retro Arms CNC gearboxes feature a quick spring change system. This allows the spring to be replaced without disassembling the gearbox, through an opening at the rear. The spring can be changed by gently pressing the spring guide inward and turning it with a hex key.\u003c\/p\u003e\n\u003ch2\u003eCompatible nozzle\u003c\/h2\u003e\n\u003cp\u003eRetro Arms recommends using a \u003cstrong\u003e21.3mm\u003c\/strong\u003e nozzle. Please note that the nozzle length and performance are also affected by the tappet plate angle and the length of the hop-up bucking lips. In some cases, a slightly longer or shorter nozzle may work better than the default length, and \u003cstrong\u003e\u003cem\u003ethe best result can only be determined through testing\u003c\/em\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQCS quick spring change from the rear of the gearbox\u003c\/li\u003e\n\u003cli\u003eSplit gearbox design\u003c\/li\u003e\n\u003cli\u003eHop-up unit attaches to the gearbox\u003c\/li\u003e\n\u003cli\u003eGrooves in spring retainers to keep tappet plate and contact springs in place\u003c\/li\u003e\n\u003cli\u003eAdditional groove to hold safety components in place during assembly\u003c\/li\u003e\n\u003cli\u003eAdditional groove to hold trigger spring in place during assembly\u003c\/li\u003e\n\u003cli\u003eAOE (Angle of Engagement) inspection port\u003c\/li\u003e\n\u003cli\u003eBearing seats are 0.02mm smaller than nominal bearing size (7.98mm) to prevent movement inside the seat; edges are chamfered for easier installation\u003c\/li\u003e\n\u003cli\u003eCable channels designed for 2.5mm wiring\u003c\/li\u003e\n\u003cli\u003eEdge to protect wiring from the motor shaft\u003c\/li\u003e\n\u003cli\u003eGearbox shells aligned with CNC-milled grooves and edges\u003c\/li\u003e\n\u003cli\u003eAnti-reverse latch release hole to remove tension before disassembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGearbox\u003c\/li\u003e\n\u003cli\u003eHop-up unit\u003c\/li\u003e\n\u003cli\u003eSpring guide\u003c\/li\u003e\n\u003cli\u003eScrews\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote! Do not use MAXX MODEL cylinder heads or similar parts with Retro Arms CNC gearboxes if they do not transfer impact to the front edge of the gearbox. The pins designed to keep the cylinder head in position should not absorb the piston impact. Using an incompatible cylinder head will damage the gearbox.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eInstalling internal parts requires experience and skill. There are many airsoft manufacturers on the market, each with its own standards. For this reason, when using parts from different manufacturers, some fitting may be necessary. We recommend using only parts that are directly Tokyo Marui compatible to avoid compatibility issues.\u003c\/em\u003e\u003c\/p\u003e","brand":"Retro Arms","offers":[{"title":"Default Title","offer_id":54236602368348,"sku":"6576","price":160.25,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/retroarms-8mm-split-cnc-rataslaatikko-pikajousenvaihdolla-ja-hop-up-kammiolla-versio-2-9.jpg?v=1743364472","url":"https:\/\/atom-airsoft.fi\/en-de\/products\/retroarms-8mm-split-cnc-rataslaatikko-pikajousenvaihdolla-ja-hop-up-kammiolla-versio-2","provider":"Atom Airsoft","version":"1.0","type":"link"}