VFC
VFC L403A1 KS-1 Gas Blowback Airsoft Rifle
Code: VFC-L403A1-TN31
L403A1 GBBR – KAC Licensed Series Gas Blowback Airsoft Rifle
VFC EVO AR GBB System | Knights Armament Licensed Replica of the British Army L403A1 / KS-1
Experience the cutting edge of British military small-arms modernisation with the VFC L403A1 Gas Blowback Airsoft Rifle – a fully licensed KAC (Knights Armament Company) replica of the UK Ministry of Defence’s next-generation Alternative Individual Weapon (AIW) selected under Project Hunter. Manufactured 100% in Taiwan by Vega Force Company, this premium gas blowback rifle (GBBR) faithfully recreates the Knight’s Armament KS-1 (an advanced evolution of the SR-16) now in service with the British Army, Army Special Operations Brigade (ASOB) and Royal Marines Commandos.
Authentic British Army L403A1 / Project Hunter Configuration
The L403A1 gas blowback airsoft gun delivers uncompromising external realism and modularity:
- Full KAC authorised markings on upper and lower receivers
- 13.7-inch unique dimpled one-piece aluminium alloy heavy outer barrel (KAC patented style)
- Authorised-marking realistic disassembly URX 6 free-float handguard with authentic locking system
- Steel CNC quick-detach coupling flash hider (KAC QDC-style 3-prong)
- Realistic dummy gas block and stainless steel dummy gas tube
- KAC authorised-marking front sight and standard-issue type rear sight
- Fully ambidextrous controls: ambidextrous magazine catch, new-style steel ambidextrous bolt catch (molybdenum-disulphide coated), ambidextrous fire selector, and ambidextrous charging handle with steel hook
- Steel drop-in two-stage match trigger with anti-slip textured trigger guard
- Steel dust cover and steel dummy forward-assist knob
- Standard-issue style grip and QD receiver end plate
- B5-style adjustable buttstock on LMT-style 6-position stock tube with integrated steel QD sling mount
This KAC L403A1 GBBR offers true special-forces modularity for optics, lasers, lights and suppressors, making it ideal for MILSIM, tactical training and high-intensity airsoft scenarios.
All-New VFC EVO AR GBB System
At the core of this gas blowback airsoft rifle is VFC’s latest patented EVO AR GBB System – a significant evolution focused on performance, durability and ease of maintenance:
- Newly designed steel bolt carrier with integrated gas relief ports for regulated gas output, enhanced durability and consistent shooting performance
- Quick-detach gas nozzle: remove the bolt E-clip and rotate the upper bolt slider for rapid servicing
- Steel TDC (Top Dead Centre) hop-up unit – reliable, quick-detach design that allows hop-up chamber and inner barrel changes without removing the outer barrel or handguard
- Hop-up adjustment relocated to the chamber base with clearly defined, indexed settings for superior trajectory stability
- Compatible with the optional VFC EVO AR GBB Hop Adjust Tool Set for precise, rapid tuning
- Steel bolt cam pin, steel disconnect set, non-cut lever steel hammer set and improved firing-pin components
- New high-speed heavy buffer unit with updated buffer spring and steel buffer stop
- New V4 30-round tan gas magazine with precisely aligned notches, mag-catch slots and bolt-stop latch featuring non-BB (dry-fire) function for maximum gas efficiency and feeding reliability
Specifications
| Feature | Detail |
|---|---|
| Model / Item No. | KAC L403A1 GBBR (VF2-LL403A1-TN31) |
| Overall Length | 790 / 870 mm (stock collapsed / extended) |
| Inner Barrel | 330 mm |
| Weight | 2800 g |
| Calibre | 6 mm BB (5.95 mm recommended) |
| Magazine Capacity | 30 rounds (V4 gas magazine, tan) |
| Muzzle Velocity | Approx. 100 m/s (varies by regulation, gas & temperature) |
| Power Source | Green gas / high-pressure gas |
| Fire Modes | Safe / Semi-Auto / Full-Auto |
| Material | Metal alloy, aluminium, steel, polymer |
| Hop-Up | Adjustable (EVO steel TDC system) |
Why Choose the VFC L403A1 Gas Blowback Airsoft Gun?
This KAC-licensed L403A1 GBBR is the definitive replica of Britain’s new standard-issue rifle. Combining full-licence authenticity, fully ambidextrous controls, advanced EVO AR internals and outstanding build quality, it delivers realistic recoil, smooth cycling, excellent gas efficiency and field-ready maintainability. Whether you are recreating British special-operations loadouts, competing in MILSIM events or seeking the most accurate modern AR-platform gas blowback airsoft rifle available, the VFC L403A1 sets the new benchmark.
Important safety notes: This is not a toy. Always wear approved eye protection, treat every airsoft gun as loaded, keep the muzzle pointed in a safe direction, and comply with local laws and site regulations. Muzzle velocity and configuration may vary by country. Images are for reference; accessories such as optics, suppressors, slings and red-dot sights are not included unless specified.
No compromise? Get VFC.
The L403A1 gas blowback airsoft rifle – Project Hunter, perfected for the field.
We will endeavour to despatch your package within 24 hours although at peak times this may take slightly longer. Orders for RIFs may take 48 hours as we test and chronograph each rifle before shipping.
Our couriers only deliver Monday to Friday between the hours of 8am and 6pm (0800 - 1800 hours) except for local and national holidays. We do not directly control the couriers and we cannot obtain a specific delivery time from them. Delivery may be delayed by extreme weather and events and again is out of our control and accept no liability for delays caused by this.
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We reserve the right to adjust shipping methods and costs but this is usually done in your favour and you will be informed by email.
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