Specna Arms FLEX Gen.2 M4 RIS SBR Airsoft AEG with GATE X-ASR MOSFET – Black
The Specna Arms FLEX Gen.2 M4 RIS SBR is a lightweight M4 airsoft AEG built for CQB, general field play, and players who want a familiar AR style platform with upgrade friendly internals. Its nylon fiber reinforced polymer receiver helps keep handling manageable, while the reinforced AETHER Version 2 gearbox provides a solid internal foundation. A factory installed GATE X-ASR MOSFET, MAGNUS TDC rotary hop-up, Helium flat hop bucking, and 6.03mm tight bore inner barrel give this compact airsoft rifle a performance focused setup out of the box. The classic quad rail RIS handguard also provides plenty of mounting space for common Picatinny accessories.
Features:
- Lightweight Reinforced Construction – Nylon fiber reinforced polymer receiver construction reduces unnecessary weight while retaining the durability needed for regular airsoft use.
- AETHER Version 2 Gearbox – Reinforced Version 2 gearbox shell uses high strength metal internals and an aluminum sealed nozzle, providing a fully upgradeable M4 AEG platform.
- GATE X-ASR MOSFET – The preinstalled GATE X-ASR MOSFET provides electronic protection for the AEG's electrical system and supports the recommended LiPo battery setup.
- MAGNUS TDC Hop-Up System – A rotary MAGNUS TDC hop-up chamber is paired with a Specna Arms Helium flat hop bucking and 6.03mm tight bore barrel for consistent BB flight and adjustable hop.
- ESA Quick Spring Change System – Specna Arms' Easy Spring Access system simplifies spring changes without removing the gearbox. A 380 FPS spring comes installed, while an included M90 spring provides an approximately 310 FPS alternative.
- M4 RIS Configuration – The quad rail handguard provides extensive Picatinny mounting space for compatible grips, lights, and other accessories, while the adjustable stock offers rear battery storage.
| Feature | Details |
|---|---|
| Manufacturer | Specna Arms |
| FPS | 300–380 FPS; 380 FPS spring installed, ~310 FPS M90 spring included |
| Length | 695–780mm, adjustable |
| Weight | 2400g / approx. 5.29 lbs |
| Inner Barrel | Approx. 300mm, 6.03mm tight bore |
| Magazine Capacity | 300 rounds, S-MAG Hi-Cap |
| Fire Modes | Semi-Auto, Full-Auto, Safety |
| Gearbox/Motor | Reinforced AETHER Version 2 metal gearbox, fully upgradeable / Long Type motor |
| Threading | 14mm Negative (CCW) |
| Battery/Power Source | 7.4V or 11.1V buffer tube LiPo recommended; rear wired with Small Tamiya connector; battery and charger not included |
| Hop-Up | Adjustable MAGNUS rotary TDC hop-up with Helium flat hop bucking |
| Package Includes | Airsoft rifle, 300rd magazine, spare spring, vertical grip, 2 rail covers, manual |
The Specna Arms FLEX Gen.2 M4 RIS SBR combines the handling of a compact M4 airsoft rifle with proven Version 2 gearbox compatibility and useful factory upgrades. With its GATE MOSFET, quick change spring system, adjustable TDC hop-up, and classic RIS configuration, it is well suited to players looking for a versatile AEG that can be used as is or developed further over time.
*Optic not included
*Product images provided by and authorized by Evike.com
