R9-4 GBB Pistol (Black)

R9-4 full-metal GBB with 3-slot RIS rail, raised fibre sights, 6.03mm/113mm tightbore and 24R double-stack magazine.

Product Features:

• CNC aluminium-alloy slide and frame with 3-slot RIS rail
• High-profile integrated green-fibre sights
• 6.03mm tightbore inner barrel, 113mm length
• 24R double-stack gas magazine with large reservoir
• Dummy RDS mount points for modern styling
• 12mm threaded outer barrel
• Dual-stage trigger with slide-mounted Single and Safe selector
• Large trigger guard and slide lock lever
• Finely stippled HIPS grip with lanyard loop at frame base
• Steel, brass and alloy internal components
• Polymer feed lips and polymer nozzles with spare nozzle supplied
• Internal hop adjuster within the slide
• Seal kit and CO2 spring included
• Supports 48R extended gas and CO2 magazines
• Approx 320 FPS on standard fuel at 20°C

The R9-4 GBB Pistol brings a modernised tactical aesthetic to a full-metal service platform, combining contemporary sighting options with dependable mechanical behaviour. Its CNC-machined aluminium-alloy chassis features a 3-slot RIS frame rail for flexible accessory mounting, while the higher-profile integrated green-fibre sights deliver swift, bright sight acquisition in dynamic CQB or outdoor play. Dummy RDS mount points enhance the optic-ready appearance without altering sight height or handling balance. A secure lanyard loop sits at the base of the frame to support retention during active use.

Accuracy is driven by a 6.03mm tightbore inner barrel at 113mm, providing tight grouping performance and predictable BB flight. The 24-round double-stack magazine includes a large internal reservoir that stabilises gas pressure and reduces FPS drop-off across long firing strings. The platform supports extended 48-round and CO2 magazine variants, and each pistol ships with a CO2 spring, spare gas nozzle and full seal kit for long-term serviceability.

The R9-4 retains the family’s dual-stage trigger system, offering a longer, heavier first pull with crisp single-stage follow-ups as the slide re-cocks the hammer. The slide-mounted selector toggles between Single and Safe, with Safe decocking the hammer for secure carry. The internal hop adjuster, accessed under the slide, enables rapid on-field tuning. Utility is strengthened by a large trigger guard for gloved operation, a threaded 12mm outer barrel for direct-fit devices and a finely-stippled HIPS grip for confident control.

Balanced, adaptable and mechanically predictable, the R9-4 delivers a modern service-pistol experience with the ergonomics and gas efficiency expected from a professional-grade sidearm.