G&P MWS CNC Adjustable Power Nozzle Valve (4.0)

G&P MWS CNC Adjustable Power Nozzle Valve (4.0) Including 90° piston cup O-ring to prevent leak out the gas Suggest using 263mm inner barrel For 134A only Suitable for Tokyo Marui M4A1 MWS Series Airsoft Gas Blow Back GBB Rifle