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 during rapid & prolonged firing

Recommended to use along with Upgrade Springs

As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed