CNC Cylinder Head and Double O Ring Nozzle gen8/v2

Make your blaster air tight with this combo pack and get the most FPS. CNC alloy for precision and a better longer lasting gearbox.  The O-ring nozzle with will better seal which still providing a smooth gliding action. .Suitable for modificaiton and upgrade of JM 8/9/10/Qidian Gearbox .The double-layer O ring and the built-in O ring of the air seal nozzle are adopted in the cylinder head to enhance the air tightness of the gearbox, and the bottom of the cylinder head has a gassing bell mouth, which can effectively increase the range .Notes: For Age: 14 ; 2. Certain practical ability is required, retrofitting is risky and should be considered carefully Note: Color might change so pic is for illustration use only.