Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Piston Head they produced FN Five-SeveN as

they produced FN Five-SeveN as a sidearm for same cartridge

Tokyo Marui VSR-10 Pro-Sniper Version (Desert)

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

Umarex licensed HK USP Series Pistol

Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Piston Head they produced FN Five-SeveN asGuarder 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