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Specna Arms SA-J78 CORE HAL ETU Gen. 2 AEG Assault Carbine

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€153.51
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€153.51

Specna Arms SA-J78 CORE HAL ETU Gen. 2 AEG Assault Carbine

An electric replica of an assault carbine from the CORE series, inspired by the renowned Kalashnikov models. Constructed using a combination of steel, metal, and plastic, the replica features polymer components such as the receiver, stock, handguard with gas tube cover, gas tube, pistol grip, and the front sight base. The barrel, bolt, rear sight, and front sight are manufactured from metal. Additional parts, including the receiver cover, selector lever, trigger guard, butt plate, and rear sling mount, are crafted from steel.

Robust construction, fixed sighting devices

Constructed from a blend of damage-resistant metal, steel, and plastic, the replica offers enhanced durability. Fitted with a precision steel inner barrel measuring 6.03 mm in diameter, the model delivers superior accuracy and consistent shot performance. Fixed sighting devices are integrated for reliable targeting, and a dovetail mounting rail is positioned along the side of the body.

Folding stock

Featuring a stock that folds to the left side of the receiver, the carbine also includes an additional hook positioned at the front of the carbine. With the stock folded, the carbine becomes highly compact, making it perfectly suited for scenarios such as indoor games or operations in tight environments.

Quick spring change system, TDC Hop-Up chamber

The upgraded quick spring replacement system enables rapid and efficient power adjustment of the replica to match specific field regulations, eliminating the need for specialized tools or a workshop. Equipped with an M90 main spring, the replica is optimized for indoor engagements. Outfitted with a rotating TDC Magnus (Top Down Center) Hop-Up chamber, it provides precise and consistent tuning.

Gearbox V3 and its components

At the heart of the replica lies a reinforced V3 gearbox, featuring:

  • 16:1 gear set
  • full steel rack piston with 14.5 teeth
  • polymer piston head with seal
  • cylinder head made of sealed polymer
  • aluminum cylinder

HAL ETU module

The innovative electronics of the HAL ETU (Electronic Trigger Unit) enhance the functionality of the replica and extend its operational lifespan. The module offers the following features:

  • Trigger detection utilizing magnetic sensors and Hall effect
  • Active brake
  • Binary trigger
  • Adjustable trigger sensitivity with 5 selectable levels ranging from 20% to 100%
  • Adjustable precocking across 6 settings
  • Programmable AUTO firing modes including full auto, semi, 3-round burst, and 5-round burst
  • SEMI programmable firing modes such as semi, binary, AUG, and sniper mode
  • Programming made simple via the trigger
  • Low battery warning

Set elements

  • Specna Arms SA-J78 CORE HAL ETU Gen. 2 AEG assault rifle
  • S-Mag Hi-Cap magazine with a capacity of 430 BBs
  • Spare M90 spring included
  • Small Tamiya to T-Deans adapter
  • Cleaning rod

Main features

  • Constructed from metal and plastic materials
  • Equipped with a reinforced V3 gearbox
  • Features a rotating TDC Magnus Hop-Up chamber
  • Outfitted with fixed sighting devices
  • Incorporates a HAL ETU module
  • Provides a quick spring replacement system
  • Delivers a BB muzzle velocity of 380 FPS
  • Fitted with a dovetail mounting rail
Specna Arms


Militaria.pl is a premium dealer of Specna Arms.


Specna Arms is a brand specialized in the production of ASG replicas, valued for their solid workmanship and value for money. The offered models are characterized by realistic appearance and high durability. The range includes a variety of series - from lightweight CORE™ models for beginners, through advanced EDGE™ models with metal bodies and licensed markings, to top PRIME™ replicas with brushless motors and modern electronics. The brand collaborates with renowned companies such as Rock River Arms and Daniel Defense. Specna Arms has a reputation among both beginners and advanced airsoft players.

More Information
Based on AK/AKM/AK74
Replica propulsion Electric
Muzzle velocity 380 fps
Accurate shot range Up to 40 m
Magazine type Hi-cap
Magazine capacity 430 6 mm caliber BBs
Gearbox Reinforced
Body Polymer
Weight 2625 g
Fixed sighting devices Yes
Additional accessories included Yes
Accessory rail Yes
Hop-up Yes
Plug type Deans/T-Connect
EAN 5902543882622
Manufacturer code SPE-01-043256
Brand Specna Arms

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