Specna Arms SA-J70 CORE™ HAL ETU Gen.2 is a modern AK-style electric airsoft gun for players who want a reliable and easily adjustable gun straight out of the box. The J-Series™ CORE Gen.2 combines a lightweight nylon-reinforced polymer body, upgraded internal parts and HAL™ electronics.
The SA-J70 body is made from reinforced polymer, keeping the overall weight moderate and making the gun easy to handle. The steel dust cover, fire selector and trigger guard add durability in high-stress areas. The side dovetail rail allows the use of AK-style optic mounts, and the fixed wood imitation stock gives the gun a classic AK look.
Internal Parts and Systems
The SA-J70 CORE Gen.2 features a V3 Ather™ ESA2™ gearbox, TDC Magnus™ Rotary Hop-Up chamber and HAL™ ETU system. The overall setup supports consistent BB flight, good adjustability and reliable operation.
- V3 Ather™ ESA2™ gearbox
- TDC Magnus™ Rotary Hop-Up chamber for precise and stable adjustment
- ESA2™ quick spring change for fast muzzle velocity adjustment
- 6.03 mm precision inner barrel
- 455 mm inner barrel
- 8 mm ball bearings
- 16:1 CNC steel gears
- Sealed aluminum nozzle
- Sealed aluminum cylinder and cylinder head
- Steel 14.5-tooth piston
HAL™ System Features
The HAL™ ETU allows the trigger and fire modes to be adjusted directly via the trigger without a separate app.
- Trigger detection with a magnetic sensor
- Adjustable trigger sensitivity, 5 levels
- Binary trigger
- Active brake
- Adjustable piston pre-cocking, 6 levels
- Programmable SEMI modes: semi, binary, AUG and sniper
- Programmable AUTO modes: full-auto, semi-auto, 3-round burst and 5-round burst
- Easy programming via the trigger
- Low battery voltage warning
Construction and External Parts
- Nylon-reinforced polymer body
- Steel dust cover, fire selector and trigger guard
- Side dovetail rail for optic mounts
- Fixed wood imitation stock
- AK-style construction for versatile gameplay
- 14 mm CCW outer barrel thread
- Deans/T-plug connector
ESA2™ Quick Spring Change
The ESA2™ quick spring change system allows the spring to be changed without fully disassembling the gearbox. The factory-installed spring produces a muzzle velocity of approximately 116 m/s with 0.20 g BBs. The included M90 spare spring allows the muzzle velocity to be lowered for lower power limits, for example.
Compatibility and Batteries
The gun has a Deans/T-plug connector, and a Small Tamiya to Deans adapter is included. The battery compartment is located under the dust cover and is suitable for stick-type LiPo or Li-Ion batteries. Battery and charger are not included in the package.
Magazine Compatibility
The gun is compatible with most AK-style magazines. Cyma, JG, E&L and Bolt magazines are generally compatible, but magazines from other manufacturers may require minor fitting.
Package Includes
- Specna Arms SA-J70 CORE™ HAL ETU Gen.2 airsoft carbine
- S-MAG hi-cap magazine, 430 BB capacity
- M90 spare spring
- Cleaning rod
- Small Tamiya to Deans adapter
NOTE!
Battery and charger are not included in the package.
HAL™ Trigger Calibration Before First Use
This airsoft gun is equipped with the HAL™ system, and the trigger must be activated before using the gun. Activation is done as follows:
Setup:
1. Turn the fire selector to the “SAFE” position.
2. Connect the battery to the gun.
3. Wait three (3) seconds until the gun emits a “beep” sound.
4. Pull and hold the trigger for approximately five (5) seconds until the gun emits a “beep” sound. This means that the HAL module activation has been successful.
