Specna Arms SA-FX01 FLEX HAL ETU AR-9 – Programmable SMG Black

The Specna Arms SA-FX01 FLEX HAL ETU AR-9 is a purpose-built electric submachine gun that bridges milsim authenticity with practical skirmish performance. Its compact 670 mm profile and 1.9 kg weight make it ideal for players who need mobility without sacrificing accuracy or rate of fire. The HAL ETU (programmable mosfet) opens up firing mode customisation, whilst the M-LOK handguard and railed receiver give you endless optics and accessory freedom.

Key Features

• Programmable ETU mosfet – customise firing modes and response profiles
• M-LOK & 20mm RIS receiver – attach optics, rails and tactical gear
• Alloy outer barrel & steel mock bolt carrier – authentic AR-pattern build
• 200-round high-capacity magazine included – sustained suppressive fire
• Sliding, multi-position stock – adjust for comfort and sight picture
• Rotary hop-up – precision range tuning for 0.20g to heavier BBs
• 7.4V Deans battery compatible – lower stress on trigger response than 11.1V

Real-World Use Cases

CQB skirmishers benefit from the compact form factor and snappy trigger response. Milsim operators appreciate the AR-9 profile—it reads instantly as a support weapon on the field. Support role players can suppress lanes with the high-capacity mag and adjust firing modes via ETU programming. Target shooters and precision builds can dial in hop-up curves with the rotary system. Woodland and urban players will find the sliding stock lets them adapt stance quickly between prone, standing and moving contact.

Technical Specifications

• Muzzle Velocity: 310 FPS (0.20g)
• Firing Modes: Safe, Semi, Full Auto, Programmable
• Magazine Capacity: 200 rounds (high-capacity AEG compatible)
• Gearbox: V2 (military-spec)
• Hop-Up: Rotary (user-adjustable)
• Motor: Standard (long-shaft)
• Battery: 7.4V LiPo/LiFe Deans connector
• Length: 670 mm (stock collapsed)
• Weight: 1.9 kg (unloaded)
• Rail System: 20mm RIS/RAS receiver, M-LOK handguard
• Stock: Sliding, multi-position buffer tube
• Receiver: High-density polymer, 20mm railed top
• Handguard: High-density polymer with M-LOK slots
• Outer Barrel: Alloy (lightweight, durable)
• Bolt Carrier: Steel mock carrier (authentic feel)

Compatibility & Upgrades

The V2 gearbox accepts standard AEG upgrade parts—spring changes, piston assemblies, and sector gears are widely available. The rotary hop-up can be fine-tuned without opening the gearbox. M-LOK rails are universal; PTS, Magpul and aftermarket covers work seamlessly. The Deans battery connection is standard on higher-end replicas, giving you access to quality 7.4V packs from major manufacturers. Stock and pistol grip are replaceable AR-pattern components if you want to customise ergonomics further.

UK Legal & Site Notes

This replica complies with UK airsoft legal requirements (310 FPS puts it well below the 500 FPS threshold). Check your local site’s power and RPS caps before attending—some venues restrict full auto or ETU fire rates. Always carry your UKARA defence documents or equivalent membership proof. The compact size makes it transport-friendly, and the sliding stock collapses for storage.

Order the Specna Arms SA-FX01 FLEX HAL ETU AR-9 from Airsoftdirect UK today and unlock programmable mosfet performance in a lightweight CQB platform. In stock and ready to ship.