Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Sight Recommended to use along with

Recommended to use along with Upgrade Springs

26 rounds Magazine

or movement of product's components

: GE-04-44

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

Guarder Aluminum Ventilation Piston Head w/ Bearing Category_Sight Recommended to use along withGuarder 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