G&P MWS CNC Adjustable Power Nozzle Valve (4.5)

G&P MWS CNC Adjustable Power Nozzle Valve (4.5) Including 90° piston cup O-ring to prevent leak out the gas Suggest using 263mm - 370mm inner barrel For 134A only Suitable for Tokyo Marui M4A1 MWS Series Airsoft Gas Blow Back GBB Rifle