Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Sight - New System 7 design

- New System 7 design means more powerful blow back hard kick

For TokyoMarui M16 AEG Series

-The Bore-Up Cylinder Set needs with M120~M170 Spring

Item No: GE-04-03

Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Sight - New System 7 designGuarder 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