SA-F04-RL FLEX™ Gen.2 HAL ETU™ Light Ops - Black

The Specna Arms SA-F04-RL FLEX™ Gen.2 Light Ops Stock HAL ETU™ is an electric airsoft carbine designed for players who want low weight, fast handling, and a modern internal setup without the need for immediate upgrades. At first glance, it stands out with its compact design, ergonomic feel, and attention to practical details that you will appreciate both in CQB environments and at short to medium range.

The body of the rifle is made primarily of durable nylon fibre-reinforced polymer, which gives the replica a pleasantly low weight while maintaining solid durability for regular use. The most important and stress-prone parts are made of metal, giving the rifle a sturdier and more reliable feel. It also features ambidextrous controls, a functional bolt-catch, and an M-LOK handguard for easy attachment of accessories.

Inside, you will find features that give this carbine a very attractive price-to-performance ratio. Stable and precise adjustment is handled by the TDC Magnus™ rotary Hop-Up chamber, supported by the Helium™ Flat Hop bucking for a more consistent BB trajectory. Accuracy is further improved by a 6.03 mm precision inner barrel, while reliable operation is ensured by steel gears, 8 mm bearings, a polycarbonate piston with full steel teeth, and a sealed aluminium nozzle.

At the heart of the replica is the reinforced Æther™ gearbox, which is ready even for stronger springs and includes several practical construction upgrades. Another major advantage is the ESA™ quick spring change system, allowing you to quickly adjust the rifle’s power to meet field limits without complicated disassembly.

Of course, one of the biggest highlights is the HAL™ ETU electronic unit, which improves trigger response and expands customization options. For the average player, this means faster trigger reaction, more control over how the rifle behaves, and the ability to tailor the shooting experience to personal preference. HAL™ offers features such as an active brake, binary trigger, adjustable trigger sensitivity, pre-cocking, programmable fire modes, and a low battery warning. It is also compatible with brushless motors.

The Light Ops Stock further supports the rifle’s lightweight and modern character. It features a minimalist design, rubber anti-slip elements, and a comfortable buttpad that sits well in the shoulder. The result is a replica that remains comfortable to handle even during longer games.

Key features:

• HAL™ ETU – fast response, programmable fire modes, and trigger adjustment
• TDC Magnus™ Hop-Up chamber – more precise and stable hop-up adjustment
• 6.03 mm precision inner barrel – improved shooting accuracy
• Æther™ gearbox – reinforced construction and modern internal design
• ESA™ quick spring change system – easy power adjustment
• Lightweight polymer body with metal parts – lower weight and solid durability
• M-LOK handguard and ambidextrous controls – practicality and ease of use
• Folding sights – ready to use even without an optic

Package includes:
replica, S-Mag Hi-Cap magazine, cleaning rod, Allen key, Small Tamiya to Deans adapter, and additional M90 spring.

Please note:
Battery and charger are not included.