Essential part for upgrading your airsoft AEG.
Polycarbonate lightweight piston with high impact-durability.
Full steel teeth design for greater durability.
Suitable for mainstream high-speed tune-up and has excellent operational characteristics.
Reinforced piston provide extra duration during rapid & prolonged firing.
For  Gearbox Ver. 2/3.
Upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed.
Color-Black
 Material - Polycarbonate & Steel