Description
Specna Arms SA-J82 CORE™ HAL ETU Gen. 2 - Black
The Specna Arms SA-J82 CORE™ HAL ETU Gen. 2 combines a lightweight AK-style construction with programmable HAL™ electronics, a Magnus™ TDC hop-up chamber and the ESA2™ quick-change spring system.
The SA-J82 belongs to the updated J-Series™ CORE™ Gen. 2 range, designed to provide a capable factory configuration at an accessible price. Its nylon-fibre-reinforced polymer construction keeps the rifle manageable, while metal components are used in areas where additional strength and rigidity are required.
The compact AK-style configuration, side-folding stock and approximately 2,725 g weight make the SA-J82 suitable for both woodland games and tighter playing areas. A dovetail side rail allows a compatible AK-style optic mount to be installed.
Programmable HAL™ ETU
The HAL™ electronic trigger unit detects trigger movement using magnetic Hall-effect sensors instead of a conventional mechanical trigger switch. Its firing and response settings can be programmed directly through the trigger without opening the rifle or using a separate application.
- Adjustable trigger sensitivity: five levels from 20 to 100%
- Adjustable pre-cocking: six levels
- Active Brake
- Binary trigger mode
- Programmable AUTO selector modes: full auto, semi-automatic, three-round burst or five-round burst
- Programmable SEMI selector modes: semi-automatic, binary, AUG or sniper mode
- Low-battery warning
When the relevant HAL™ setting is selected, the rifle fires an initial three-round burst before continuing in full auto while the trigger remains held.
This is the standard HAL™ ETU version and not a separate BLDC model equipped with a brushless motor.
Updated CORE™ Gen. 2 internals
The internal mechanism is built around a Version 3 gearbox with 8 mm bearings and 16:1 steel gears. The compression system includes an aluminium cylinder, sealed polymer piston and cylinder heads, a sealed aluminium nozzle and a piston with a 14.5-tooth steel rack.
- Version 3 gearbox
- 8 mm bearings
- 16:1 steel gears
- Piston with a 14.5-tooth steel rack
- Sealed polymer piston head
- Sealed polymer cylinder head
- Aluminium cylinder
- Sealed aluminium nozzle
- 6.03 mm brass precision inner barrel
Magnus™ TDC hop-up chamber
The rotary Magnus™ TDC hop-up chamber applies pressure directly from above, supporting precise and stable adjustment. The system is paired with a 270 mm long, 6.03 mm brass inner barrel to provide a consistent factory configuration.
ESA2™ quick-change spring system
The ESA2™ quick-change spring system allows the mainspring to be replaced without completely disassembling the gearbox. This makes it easier to adapt the muzzle velocity to different field limits or styles of play.
The factory configuration produces an advertised muzzle velocity of approximately 122 m/s or 400 FPS. An additional M90 spring is included for reducing the output when required.
Lightweight AK-style construction
The receiver, handguard, pistol grip and selected external components are made from nylon-fibre-reinforced polymer. The outer barrel assembly and several structural components are made from aluminium and zinc alloys.
The top cover, fire selector and trigger guard are made from steel. The rifle also features a side-folding stock and a steel AK-style dovetail rail for installing a compatible optic mount.
The battery compartment is located underneath the top cover and provides space for a stick-type battery. The rifle is LiPo-ready and uses a DEANS / T-connect battery connector. A Small Tamiya to DEANS adapter is included.
Magazine compatibility
The rifle is compatible with many AK-style magazines. Magazines from Cyma, JG, E&L and Bolt generally fit without modification, while magazines from other manufacturers may require minor fitting.
Features
- AK-style J-Series™ CORE™ Gen. 2 construction
- Programmable HAL™ electronic trigger unit
- Magnetic Hall-effect trigger detection
- Adjustable trigger sensitivity and pre-cocking
- Active Brake and binary trigger functions
- Programmable semi-automatic, full-auto and burst modes
- Version 3 gearbox
- 8 mm bearings and 16:1 steel gears
- Magnus™ rotary TDC hop-up chamber
- 6.03 mm brass precision inner barrel
- Sealed aluminium nozzle
- ESA2™ quick-change spring system
- Nylon-fibre-reinforced polymer receiver
- Steel top cover, fire selector and trigger guard
- Side-folding stock
- AK-style dovetail side rail
- DEANS / T-connect battery connector
- Two S-MAG mid-cap magazines included
Technical specifications
- Manufacturer: Specna Arms
- Model: SA-J82 CORE™ HAL ETU Gen. 2
- Product type: electric airsoft rifle
- Operating system: AEG
- Gearbox: Version 3
- Electronic trigger unit: HAL™ ETU
- Motor version: standard motor, not BLDC
- Fire modes: semi-automatic, full auto and programmable burst modes
- Muzzle velocity: approximately 122 m/s / 400 FPS
- Hop-up: adjustable Magnus™ TDC rotary chamber
- Inner barrel diameter: 6.03 mm
- Inner barrel material: brass
- Inner barrel length: 270 mm
- Gear ratio: 16:1
- Bearing diameter: 8 mm
- Magazine type: S-MAG mid-cap
- Number of magazines included: 2
- Minimum length: approximately 750 mm
- Maximum length: approximately 830 mm
- Weight: approximately 2,725 g
- Battery connector: DEANS / T-connect
- Battery compartment: underneath the top cover
- Recommended battery shape: stick-type
- Outer muzzle thread: 24 mm CCW
- Main materials: nylon-fibre-reinforced polymer, aluminium, zinc alloy and steel
- Colour: Black
Package contents
- Specna Arms SA-J82 CORE™ HAL ETU Gen. 2 AEG
- 2 × S-MAG mid-cap magazine
- Magazine speedloader
- Additional M90 spring
- Small Tamiya to DEANS adapter
- Cleaning rod
Activating the HAL™ trigger before first use
The HAL™ trigger must be activated when the battery is connected for the first time:
- Set the fire selector to SAFE.
- Connect the battery to the rifle.
- Wait approximately three seconds until the system emits a beep.
- Press and hold the trigger fully for approximately five seconds.
- Release the trigger after the confirmation beep.
Note: The battery and charger are not included.
