Specna Arms SA-F08 FLEX Gen. 2 M4 AEG – HAL ETU Black

The Specna Arms SA-F08 FLEX Gen. 2 M4 AEG is a mid-range platform designed for players who want solid out-of-box reliability without breaking the bank. Specna Arms’ reputation for consistency shines here—this is a rifle that works, and works well, across diverse skirmish environments.

Key Features

• HAL ETU with programmable firing modes—safe, semi, full auto, and custom rate-of-fire control
• 312 fps on 0.20g BBs—ideal for most UK skirmish sites and outdoor fields
• M-LOK rail integration—lightweight, modern accessory mounting without weight penalty
• V2 gearbox with standard motor—proven platform for reliability and easy upgrade paths
• Rotary hop-up system—precise adjustment for consistent grouping across distances
• High-capacity 380-round magazine included—fewer reloads during engagement
• Multi-position M4 Crane Stock—comfortable cheek weld and customisable length-of-pull
• Mixed construction (alloy barrel, steel carrier, polymer receiver)—balance of durability and weight management

Real-World Use Cases

This rifle excels in standard woodland and CQB skirmishes. The 312 fps sits comfortably within most site limits, eliminating the need for downgrades. The programmable ETU makes it ideal for players running organised milsim events where rate-of-fire control matters. The modular M-LOK rail system allows you to add or strip optics, grips, and tactical accessories without tools—perfect for quick field changes. Whether you’re a first-time buyer, returning player, or seasoned skirmisher looking for a dependable workhorse, the SA-F08 FLEX delivers.

Technical Specifications

• Velocity: 312 fps (0.20g BB)
• Firing modes: Safe, Semi-Automatic, Full Automatic, Programmable
• Gearbox: V2
• Motor: Standard
• Hop-up: Rotary
• Magazine capacity: 380 rounds
• Magazine compatibility: AEG High Capacity
• Battery: 7.4V Deans connector
• Receiver length: 68 mm
• Weight: 2.031 kg
• Colour: Black
• Power source: Electric (AEG)

Compatibility & Upgrades

The V2 gearbox is one of airsoft’s most popular and well-supported platforms. Upgrade parts—springs, pistons, shims, and gear sets—are widely available and straightforward to install. The rotary hop-up accepts standard M4 bucking and nub combinations. The M-LOK rail is fully compatible with any M-LOK accessory on the market. Battery space is standard; the included 7.4V Deans setup is efficient, but you can upgrade to 11.1V or LiPo batteries if you want increased rate-of-fire (check your local airsoft shop’s advice on compatibility). The 20mm Picatinny sections allow traditional rail-mounted optics and accessories alongside M-LOK gear.

UK Legal & Site Notes

This rifle is a two-tone (black) AEG and legal for UK possession. At 312 fps, it’s within limits at the vast majority of UK skirmish sites and outdoor fields. Always confirm site rules before attending—some venues have strict fps caps or site-specific chronograph requirements. The two-tone finish complies with UK regulations for realistic imitation firearms.

Order the Specna Arms SA-F08 FLEX Gen. 2 M4 AEG from Airsoftdirect UK today and step onto the field with confidence. Stock is live—dispatch within 1–2 working days.