The Specna Arms FLEX™ Gen.2 series is built to deliver a strong out-of-the-box performance with modern features at an attractive price point. The SA-FX02 combines a lightweight, fibre-reinforced polymer body, the ESA™ quick spring change system, HAL™ electronics, and a Gen.2 Dark Matter™ brushless motor—making it an excellent choice for fast-paced play and CQB use.
Key Gen.2 upgrades
- Rotating TDC Magnus™ (Top Down Center) Hop-Up chamber for highly precise and stable adjustment (EU Patent No. 015052069-0001)
- Helium™ Flat Hop Eraser to improve BB flight consistency
- Sealed aluminium nozzle
Ather™ Gearbox – reinforced shell
The Ather™ gearbox shell is designed for durability and easier maintenance (EU Patent No. 015044865-0001). It features:
- mainspring release function
- pre-cocking and AoE inspection windows
- reinforced front end
- inspection windows for easier priming
- trigger adjustment function
- screw holes for shell alignment
- ready for use with up to M140 springs
HAL™ ETU system features
- trigger detection based on magnetic sensors (Hall effect)
- active brake
- binary trigger
- adjustable trigger sensitivity (5 levels, 20–100%)
- adjustable pre-cocking (6 levels)
- AUTO programmable modes: full auto / semi / 3-rd burst / 5-rd burst
- SEMI programmable modes: semi / binary / AUG / sniper
- easy trigger-based programming
- low battery alarm
- compatible with brushless motors
Note: In AUTO mode, the replica fires a 3-round burst first and then switches to full auto.
Construction and ergonomics
The outer barrel, handguard, slide/rail section, Light Ops stock, and pistol grip are made from nylon fibre-reinforced polymer, keeping weight low while offering improved rigidity compared to standard polymer builds. Aluminium and zinc are used on selected external parts and controls, while key small parts (pins, ejection port area parts, etc.) are steel. The build is tightly fitted, minimizing play between the upper and lower receiver.
The minimalist Light Ops Stock is lightweight and modern, featuring grippy rubber cheek pads on both sides and a curved rubber buttpad that sits comfortably on the shoulder.
ESA™ quick spring change
The ESA™ system allows fast spring changes without specialist tools, making it easy to adapt the replica’s power output to field limits and playstyle.
Internals (selected)
- 8 mm plain bearings
- steel gears
- polycarbonate piston with full steel rack
- 6.03 mm precision inner barrel
- Specna Arms Dark Matter™ 27k High Speed Gen.2 brushless motor
Package includes
- SA-FX02 replica
- 2 × S-MAG mid-cap magazines
- cleaning rod
- Allen key
- BB speedloader
- Small Tamiya to Deans adapter
- extra spring (M90)
Not included
