CNC Noise Reduction Cylinder Head and Double O-Ring Nozzle

Make your blaster air tight and less noise with this combo pack and get the most FPS. CNC alloy for precision and a better longer lasting gearbox.  The double o-ring nozzle with will better seal which still providing a smooth gliding action. .elected materials, superior quality .Adapted to BF P90 Gen.3/JM 8/JM 9/JM 10/Qidian gearbox modification .There is a cushion air seal nozzle is good air-tightness .Note: 1. Applicable age: 14 . 2. Refit requires a certain amount of hands-on ability, novices please be careful to buy   Note: Picture if for display purpose only