Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Piston Head Umarex licensed HK USP Series

Umarex licensed HK USP Series Pistol

: M16-12(B)

P-Process technologyMaterial: SteelThermal Treatment: 40¢X HRCItem No

Tokyo Marui M4A1 Carbine AEG

KWA 2GX Gearbox

Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Piston Head Umarex licensed HK USP SeriesGuarder Airsoft AEG Upgrade Part Series Aluminum Ventilation Piston Head w Ball Bearing Essential part for upgrading your Airsoft AEG Aluminum Piston Head with Thrust Bearing is renewed to be more effective Head resistant O Ring Custom 8 holes ventilation design increase the stability during full auto shooting mode It creates tremendously crispy shooting sound compared to sister part, Duracon Version Reinforced piston head will provide extra duration