Cybergun FN Herstal M4A1 Gas Blowback Airsoft Rifle with Adjustable Stock in Black

Cybergun FN Herstal M4A1 Gas Blowback Airsoft Rifle with Adjustable Stock in Black

The Cybergun FN Herstal M4A1 Gas Blowback Airsoft Rifle with Adjustable Stock in Black is an officially licensed replica that delivers the look, feel, and handling of one of the world's most recognisable military rifles. Produced by Cybergun in collaboration with WE-Tech under licence from FN Herstal, this GBB rifle faithfully recreates the iconic M4A1 platform with authentic FN trademarks, realistic controls, and an immersive shooting experience. If you're looking for an airsoft rifle that offers satisfying recoil alongside excellent upgrade potential, this model ticks all the right boxes.

Built with a durable full metal receiver and outer barrel, the rifle feels reassuringly solid from the moment you pick it up. At approximately 2.58kg, it has enough weight to feel realistic without becoming tiring during extended skirmishes. The six-position adjustable stock allows you to tailor the length of pull to suit your shooting stance or tactical gear, making it equally comfortable whether you're wearing a plate carrier or simply running lightweight kit. The familiar AR-style controls fall naturally under your fingers, giving the rifle an intuitive feel that experienced players will appreciate immediately.

At the heart of this Airsoft GBB rifle is the proven WE-Tech gas blowback system, renowned for its dependable performance and huge aftermarket support. Every trigger pull produces a crisp recoil impulse as the bolt cycles, adding a level of realism that keeps every game engaging. It's one of those rifles that puts a grin on your face after the very first magazine. The mechanical feedback makes every shot feel rewarding, and the realistic bolt operation brings the platform to life in a way that electric rifles simply cannot replicate.

Performance is equally impressive. Running on green gas, the rifle produces an estimated 300-340 FPS, making it suitable for a wide variety of outdoor skirmish sites. The adjustable hop-up allows you to fine-tune your BB trajectory for improved consistency and range, while the 363mm inner barrel helps deliver accurate shots at distance. Feed it quality BBs, spend a few moments adjusting the hop, and you'll quickly notice how confidently this assault rifle places rounds where you want them. There's something genuinely satisfying about watching well-set shots fly straight towards the target.

The rifle comes equipped with a flat-top upper receiver featuring a full-length 20mm Picatinny rail, providing plenty of room for optics, magnifiers, or backup sights. The drop-in quad RIS handguard expands your options even further, allowing vertical grips, weapon lights, PEQ boxes, lasers, bipods, and other standard 20mm accessories to be fitted with ease. Whether you prefer a classic military setup or a more modern tactical configuration, this airsoft gun gives you the flexibility to personalise it exactly how you like.

Compatibility is another major strength of this platform. Since it utilises the popular WE-Tech M4 GBBR system, owners benefit from one of the largest selections of replacement and upgrade parts available. Compatible magazines are widely available, maintenance parts are easy to source, and performance upgrades can be installed as your experience grows. That's a huge advantage for players who enjoy tuning their equipment rather than replacing it every few seasons.

The included flip-up rear sight offers an excellent starting point straight out of the box, while the threaded 14mm negative muzzle allows suppressors, tracer units, or other compatible muzzle devices to be installed without modification. Every part of the rifle feels familiar to anyone who's spent time with the AR platform, making reload drills, manipulations, and transitions feel smooth and natural. It's a dependable platform that rewards practice and becomes even more enjoyable the longer you use it.

Overall, the Cybergun FN Herstal M4A1 Gas Blowback Airsoft Rifle combines authentic FN licensing, realistic gas blowback performance, premium full metal construction, and exceptional upgrade compatibility into one impressive package. Whether you're building a modern military loadout, looking for a dependable Airsoft GBB rifle, or simply want an assault rifle that delivers realistic handling and satisfying recoil, this licensed FN M4A1 is an excellent addition to any collection.

Highlights

• Officially licensed FN Herstal M4A1 replica with authentic engraved trademarks
• Full metal construction for realistic weight and durability
• WE-Tech gas blowback system with extensive upgrade compatibility
• Realistic gas blowback action with strong recoil
• 20mm Picatinny flat-top receiver for optics and accessories
• Drop-in quad RIS handguard for grips, lights, lasers, and other accessories
• Six-position adjustable stock on mil-spec style buffer tube
• 14mm negative threaded barrel for suppressors and tracer units

What's Included

• Cybergun FN Herstal M4A1 Gas Blowback Airsoft Rifle
• 30-round gas blowback magazine
• Flip-up rear sight
• User manual

Technical Specifications

• Manufacturer: Cybergun / WE-Tech (Licensed by FN Herstal)
• Platform: M4A1 Gas Blowback Rifle (GBBR)
• Construction: Full Metal
• Length: Approximately 765mm - 845mm (Adjustable)
• Weight: 2,580g
• Inner Barrel Length: 363mm
• Magazine Capacity: 30 Rounds
• Compatible with WE-Tech M4/M16 Gas Blowback Magazines
• Power Source: Green Gas
• Estimated Velocity: 300-340 FPS
• Fire Modes: Safe, Semi-Automatic, Full-Automatic
• Hop-Up: Adjustable
• Thread Direction: 14mm Negative (CCW)
• Colour: Black