CNC Aluminum Hopup Chamber Sport is specifically designed for fast feeding BBs on M4/M16 series AEG Airsoft Rifles.
The Hopup Chamber unit is machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability for your airsoft rifles.
The Hopup Chamber unit has a Dial Knob built-in for precise adjustments and a re-engineered Hopup Arm with a U-Point shape to keep the BBs shooting straight and accurate on every single shot.
The Hopup Chamber unit is well engineered to accept a wide range of Air Seal Nozzle length from 20mm to 21.5mm without losing FPS or dropping BBs.
The Hopup Chamber Housing is equipped with an O-ring and an upper and lower Compression Spring to ensure the hopup unit is exactly centered, straight and air tight at all time when adapted to any V2 gear boxes with 11mm or 11.5mm bore.
***LED and Electronic Moduldes can be also added onto this hopup chamber unit as an option for BBs to glow in the dark. This option will be soon available.
***Test results: FPS might be increased by 5% to 10%. Please check your FPS!