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SA M4 CQB M-LOK Gen2 (SA-F08 FLEX™ HAL ETU™) – Black
Specna Arms M4 CQB M-LOK Gen2 (SA-F08 FLEX™ HAL ETU™) in black finish is a high-performance airsoft rifle with 115 m/s power and upgraded internals. It features a HAL ETU™ processor unit with pre-cocking and trigger sensitivity adjustment. The nylon body and M-LOK handguard ensure excellent handling, while the TDC hop-up chamber with Helium™ flat bucking delivers great accuracy.
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Half - TanOn stock
Accessories
9,26 € In StockBLS PRECISION Airsoft Pellets 0.25g, 4000 BBs (Bag) - White: BLS
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BLS PRECISION Airsoft Pellets weighing 0.25 g in a pure white finish. 1 kg package (resealable bag, 4000 BBs). The most popular ammunition for all airsoft guns (rifles, sniper rifles, LMGs, SMGs, shotguns, and pistols). Suitable for AEG, HPA, gas guns, and spring-powered replicas. The world’s best-selling BBs. Hand-measured quality control. BLS –...
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9,68 € In StockBLS PRECISION Airsoft Pellets 0.28g, 3500 BBs (Bag) - White: BLS
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BLS PRECISION Airsoft Pellets weighing 0.28 g in a pure white finish. 1 kg package (resealable bag, 3500 BBs). The most popular ammunition for all airsoft guns (rifles, sniper rifles, LMGs, SMGs, shotguns, and pistols). Suitable for AEG, HPA, gas guns, and spring-powered replicas. The world’s best-selling BBs. Hand-measured quality control. BLS –...
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2,96 € In StockFMA Speed Loader Tool for Mid-Cap / Low-Cap Magazines, 90 BBs...: FMA
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9,09 € In StockSA Mid-Cap Magazine S-MAG for M4 / AR15, 125 BBs - GreySPARMS030-GR
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16,92 € In StockWST Lever Silence Speedloader, 1000 BBs - Black: Wosport
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Introducing the Lever Silence Speed Loader for 1000 BBs by WoSporT in a transparent (bright). No more refilling the loader after every magazine! Convenient loading of mid-cap magazines using a rotating lever! Thanks to the internal silicone insert, you won't rattle for miles! The loader fits M4/AR15 magazines. You can also purchase an adapter for...
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12,69 € In StockWST FARAON 2-Point Tactical Sling – Black: Wosport
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44,36 € In StockHELIKON Two-Point MIRAGE Carbine Sling® - Black: HELIKON
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33,41 € In StockLi-Pol battery TITAN 11,1V 1200mAh, 25C (T-Dean) - Stick (buffer): TITAN
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24,95 € In StockSA EASY LIPO CHARGER and Battery 11,1V 1000mAh, 20C - Stick...SPARMS266
EASY LiPo Charger and 11.1V 1000mAh, 20C Battery Set by Specna Arms. Ideal for beginners and advanced users. Reliable and safe charger without unnecessary features. The battery is suitable for AEG AR15 rifles (M4, MK18), AR9 with wiring in the stock tube including small PDW stocks. LED light indicates charging (red) and fully charged (green). Battery...
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ONE-MAG Mid-Cap Magazine for AEG M4 / AR15 Rifles (MK18, HK416) by Specna Arms in Dark Earth. Capacity of 120 BBs. Reliable feeding even in SA-H One™ Series rifles. Durable polymer body with textured surface for a firm grip. Ridges for a better fit in the magwell.
8,25 €Out of stock
8,25 € In StockSA STANAG M4 / AR15 Low-Cap Magazine, 70 BBs (Metal) - GreySPARMS332-GR
STANAG Push-Type Magazine for AEG Rifles M4 / AR15 (MK18, HK416) by Specna Arms in grey. Capacity of 70 BBs (Low-Cap). Reliable feeding even in SA-H One™ Series replicas. Durable metal STANAG-type body.
8,25 €In Stock- Novritsch Flare Smoky BT Tracer Suppressor & Chrono – Black
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Novritsch Flare Smoky BT Tracer & Chrono in black combines BBs illumination, smoke effect, muzzle flash simulation and Bluetooth chrono in one device easily controlled via the ESHOOTER app. It offers 8 modes and features a CNC-machined aluminum body with VG & PG 50/50 liquid leak certification. Dimensions are 126 × 38 mm.
109,53 €In Stock
Why Choose M4 CQB M-LOK FLEX™ Gen2 from Specna Arms?
Specna Arms M4 CQB M-LOK Gen2 (SA-F08 FLEX™ HAL ETU™) is built around a lightweight yet durable FLEX™ series nylon body reinforced with glass fiber, offering a realistic matte finish and long-term durability even under heavy use. Compared to cheaper alloy bodies, it provides better resistance to impacts and wear. The nylon outer barrel with a 14 mm CCW thread and steel components such as pins, screws, and the ejection port add strength where it matters most. The result is an extremely lightweight yet durable assault rifle platform, ideal for CQB environments and fast-paced gameplay. Controls follow the familiar AR15 (M4) platform, making handling intuitive. It features an ambidextrous charging handle, a clear fire selector, and easy hop-up adjustment through the ejection port. The M-LOK handguard allows mounting accessories such as a foregrip, tactical flashlight, or PEQ box. The spacious Crane Stock with QD sling points provides stable support for precise shooting. The battery is stored in the stock, allowing use of buffer stick, nunchuk, or crane batteries. Overall, this rifle combines low weight, modern construction, and upgraded Gen2 internals in one affordable platform. The FLEX™ Gen2 series stands out with durable construction and internal components such as the Æther™ gearbox with HAL ETU™, metal nozzle, TDC hop-up chamber with Helium™ flat bucking, and a 6.03 mm precision inner barrel.
Key Features of Specna Arms M4 CQB M-LOK FLEX™ Gen2
Technical Specifications
- Platform: M4 / AR-15
- Series: FLEX™ Gen2
- Length: 680-760 mm
- Weight: 2210 g
- Power Source: AEG
- Unit: HAL ETU™
- Gearbox: Æther™ V2 QSC (reinforced)
- Quick Spring Change: Yes (ESA™)
- Hop-up: TDC
- Inner Barrel: 6.03 mm
- Velocity: 115 m/s
- Bearings: 8 mm (ball bearings)
- Connector: T-Dean
- Body Material: Fiber-reinforced nylon
- Handguard Material: Fiber-reinforced nylon
- Handguard Type: M-LOK
- Thread: 14 mm CCW
Package Contents
- Specna Arms M4 CQB M-LOK FLEX™ Gen2
- Hi-cap magazine (300 BBs)
- Flip-up sights
- M90 spring
- Specna Arms stickers
- User manual
Important Setup Instructions
To use the rifle, you must activate the HAL ETU unit by following these steps:
- Set the fire selector to Safe
- Connect the battery and wait 3 seconds for a beep
- Pull and hold the trigger for 5 seconds until another beep is heard
- The rifle is now ready to use
| Variants | FLEX™ Gen2 |
| Color | Black |
| Muzzle velocity (m/s) | 115 (m/s) |
| Recommended weight of ammunition | 0,25g - 0,28g |
| Thread (mm) | 14- (mm) |
| Outer length MINIMAL (mm) | 680 (mm) |
| Outer length MAXIMAL (mm) | 760 (mm) |
| Inner barrel length (mm) | 255 (mm) |
| Weight (g) | 2220 (g) |
| Body/receiver material | ABS / Plastic |
| Mounting System | M-LOK |
| Gearbox version | V2 - ESA™ |
| Amount of piston teeth | 14 |
| Bearings (mm) | 8 (mm) |
| Bearings (material) | Metal |
| Piston head | Plastic |
| Nozzle | Metal |
| Spring guide | Plastic |
| Hop-Up chamber material | Plastic |
| Battery type | Buffer stick |
| Connector type | T-Dean |
| Magazine material | Plastic |
| High-cap / Mid-cap | High-cap |
| Magazine capacity | 300 |
| Processor unit | YES |
| Blowback | NO |
| Battery included | NO |
| Battery Charger | NO |
| Weapon accessories | Yes |