Specna Arms SA-F20 FLEX™ ETU™ Airsoft Rifle – Tactical Black

If you're new to airsoft but still want a rifle that feels like the real deal and performs like a champ, the Specna Arms SA-F20 FLEX™ in Tactical Black is a fantastic place to start. Developed in partnership with industry veterans Double Eagle, the FLEX™ series brings together high-quality materials, clever engineering, and an accessible price point that makes it a go-to choice for beginner players. But don’t mistake this for a basic budget gun—it’s got the features and polish to impress even experienced skirmishers.

The reinforced nylon construction is a standout feature here. Lightweight yet tough, the SA-F20’s polymer body is rock solid, with a satisfying fit that eliminates that annoying rattle or wobble between the upper and lower receiver. It’s nimble enough for fast-paced electric rifle gameplay, especially in CQB scenarios, but doesn’t compromise on durability. The tactical black finish adds a sleek, no-nonsense aesthetic that looks as good as it performs.

Up front, the SA-F20 sports a compact 7-inch M-LOK handguard—giving you flexible mounting options for grips, lights, or lasers without adding too much bulk. A 14mm CCW threaded outer barrel means adding a suppressor or tracer unit is as easy as it gets. In fact, a suppressor is already included in the box, giving the gun a complete look right out of the gate.

Internally, this rifle punches well above its weight. The V2 gearbox features a quick-change spring system, letting you adjust your FPS without a full teardown—perfect if you're hopping between indoor and outdoor sites. Inside the gearbox, you’ll find steel gears and 8mm bearings, ensuring a smooth and reliable cycle, even under stress. Paired with a tightbore 6.03mm inner barrel (223mm long) and rotary hop-up unit, accuracy and consistency are both spot on.

One of the most impressive inclusions is the SA ETU 2 electronic trigger unit. Straight from the factory, this adds programmable features like burst fire (1–5 shots), binary trigger mode, and three-stage trigger sensitivity. It also has built-in motor overload protection, high/low voltage alerts, and even an auto shutdown if the gun is left idle for an hour. No external MOSFET programming needed—it's all handled internally, making this airsoft gun incredibly user-friendly.

Handling is smooth and intuitive thanks to an enlarged magazine release and an oblique fire selector switch for better ergonomics. Even the adjustable stock is cleverly designed, allowing you to tweak the breech length to suit your style. While it doesn’t include a battery or charger, it’s wired to DEANS (T-plug) for improved electrical efficiency, and a small Tamiya-to-Deans adapter is included in the box for convenience.

Speaking of magazines, you’ll get two mid-caps included—each holding 175 BBs. These feed reliably and are perfect for players who prefer stealth over the rattle of a high-cap mag. Also in the box: iron sights, a cleaning rod, spare Deans connectors, tools, and that aforementioned suppressor—everything you need to get started, minus the battery and charger.

Whether you’re new to the sport or just want a reliable backup rifle with some modern electronic features, the SA-F20 FLEX™ delivers performance, practicality, and style in one neat package. It’s not just beginner-friendly—it’s a proper airsoft rifle that grows with your game.

Features

• Lightweight reinforced nylon body and handguard 
• Factory-installed SA ETU 2 system with programmable firing modes
• Quick spring change system (V2 gearbox)
• Steel gears and 8mm bearings for enhanced reliability
• 223mm tightbore 6.03mm inner barrel
• Rotary style hop-up unit for accurate tuning
• 14mm CCW threaded barrel with included suppressor
• Ergonomic controls and adjustable breech length

What you get

• Specna Arms SA-F20 FLEX™ rifle 
• 2 x 175-round mid-cap magazines
• Suppressor
• Iron sights
• Cleaning rod, Allen key, assembly key
• Instruction manual
• Deans connectors and Tamiya-to-Deans adapter

Details

• Muzzle velocity: Approx. 390 FPS
• Inner barrel length: 223mm
• Plug type: DEANS / T-plug
• Weight: 2115g
• Material: Nylon and Steel
• Gearbox: Version 2 with quick spring change