SPECNA ARMS SA-J83 CORE HAL ETU Gen 2

Description

The Specna Arms SA-J83 CORE™ HAL™ ETU Gen 2 is a modern airsoft replica built on the legendary AK platform, offering players the perfect combination of authentic design, advanced internal components, and electronic fire control. Designed for both newcomers and seasoned airsoft players, the SA-J83 delivers solid performance right out of the box and is fully upgrade-ready for those who want more.

External Build and Design

The body of the SA-J83 is made from high-strength, fiber-reinforced polymer, delivering excellent durability while keeping the weight low. Key structural components like the outer barrel, gas tube, fire selector, and sling mounts are made from metal, providing a realistic feel and enhanced durability where it matters most.

The replica features a folding stock for compact carry and better handling in tight spaces. On the side of the receiver, you'll find a side-mount rail for attaching scopes and optics compatible with AK-style mounts. The ergonomically shaped grip and well-balanced build ensure comfortable handling during long sessions.

Advanced Internals – HAL™ ETU System

At the heart of the replica lies the cutting-edge HAL™ (High-efficiency Advanced Logic) ETU, an electronic trigger unit that brings advanced features typically only found in high-end custom builds:

• Binary trigger function (fires on both pull and release)
• Active brake for crisp trigger response
• 5-stage adjustable trigger sensitivity
• Programmable semi and auto fire modes, including burst (3rd/5rd)
• 6-stage adjustable pre-cocking for faster shot timing
• Trigger-based programming – no external devices needed
• Low voltage warning
• Brushless motor compatibility

The system uses precise Hall-effect magnetic sensors, ensuring reliable and responsive trigger behavior even under rapid fire conditions.

ORION Gearbox & Precision Components

Internally, the SA-J83 is powered by the trusted ORION V3 gearbox, known for its durability and smooth operation. It includes a number of high-end components:

• Reinforced polymer piston with full steel rack
• Sealed aluminum nozzle and cylinder head
• Ball-bearing piston head for smoother compression
• Bearing spring guide
• Full steel gear set
• 8mm ball bearings

This gearbox is prepped for M140 springs, making it suitable for power upgrades while maintaining long-term reliability.

Thanks to the ESA™ quick spring change system, the main spring can be swapped quickly and easily – no gearbox disassembly required. Perfect for switching between field and indoor FPS limits.

Combined with a 6.03 mm precision inner barrel and a rotary hop-up chamber, this replica offers impressive range, accuracy, and consistent shot performance – even with heavier BBs.

What's in the Box

• SA-J83 airsoft replica
• 2 x Hi-cap S-MAG magazines
• Spare M90 spring
• Sling
• Deans to Mini Tamiya adapter
• User manual

Note: Battery and charger are not included.

Specifications