Specna Arms SA-F04-RL FLEX HAL ETU, Black

Specna Arms SA-F04 FLEX HAL ETU is designed for players who want an airsoft rifle that combines light weight, durability, and modern technical features. This model is part of the FLEX™ series, with its gearbox controlled by the HAL Electronic Trigger Unit (HAL ETU™). It’s an adjustable electronic trigger that controls the gearbox operation, protects the battery, and enables various firing modes (semi, binary, burst, full auto, etc.). The MOSFET reduces trigger response time, protects the battery and electronic components, and allows basic fault diagnostics through built-in LED indicators.

The receiver, handguard, stock, and pistol grip are made of nylon fiber-reinforced polymer, making the build lightweight yet exceptionally durable. The outer barrel, flash hider, charging handle, and other critical components are made from aluminum or ZnAl alloy, while steel pins, screws, and the ejection port cover add to the rifle's reliability. The lightweight design and excellent balance make this gun perfect for fast-paced CQB (Close Quarters Battle) gameplay.

The rifle features the ESA™ quick spring change system, which allows the spring to be changed without special tools. Two springs are included: M120 (approx. 1.35 J / 116 m/s with 0.20g BBs) and M90 (approx. 1.0 J / 90 m/s with 0.20g BBs), making it easy to adapt the gun to different game formats.

The internal components are high quality: 8 mm bearings, steel gears, a polycarbonate piston with metal teeth, a 6.03 mm precision inner barrel, and an adjustable rotary hop-up. The 14 mm CCW threads allow for the use of a suppressor or tracer unit.

Magazine 380 rd Length 670-750 mm Weight 2095 g Velocity 90/116 m/s

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