SA-J78 CORE™ HAL ETU Gen. 2 - Black

The Specna Arms SA-J78 CORE™ Gen.2 is part of the J-Series™, crafted for airsoft players who demand a durable, lightweight, and high-performing replica that’s ready to go without upgrades. With the built-in HAL™ ETU processor unit, this carbine offers advanced electronic features and consistent performance on the battlefield.

Constructed from reinforced polymer with metal parts (steel, aluminum, and zinc alloy), this replica maintains a low weight of just 2625 g without sacrificing durability or ergonomics – ideal for long matches or new players who prefer lighter gear.

Internally, the rifle is fitted with quality components:

• 6.03 mm precision inner barrel

• 16:1 steel gear set

• Sealed polymer piston and cylinder heads

• Aluminum cylinder

• Magnus TDC rotary Hop-Up chamber for enhanced trajectory stability

At its core is the HAL™ ETU module, offering features such as:

• Binary trigger and programmable fire modes (semi, full auto, 3-round burst, 5-round burst)

• Adjustable trigger sensitivity (5 levels)

• Adjustable pre-cocking (6 levels)

• Active braking and low voltage battery warning

• Easy programming via the trigger – no external device needed

The replica also includes a quick spring change system, allowing performance adjustments without opening the gearbox – perfect for switching between CQB and outdoor limits.

Magazine compatibility: Most AK-type magazines from brands like Cyma, JG, E&L, and Bolt will fit. Some other brands may require minor adjustments.

Included in the box:

• SA-J78 CORE™ replica

• 2 S-Mags Hi-Cap magazines (430 BBs)

• M90 spring

• Cleaning rod

• Deans to Tamiya adapter

•  Note: When using the replica for the first time, activate the HAL™ unit by holding the trigger in SAFE mode for 5 seconds after connecting the battery.

• Battery and charger not included.

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  ↓ETU unit settings↓