Mushroom-piston shock-absorbing cushion can reduce the impact of the voice and reduce the impact strength to protect BOX fracture.
Mushroom head with the rear thrust bearing, can reduce the spring compression caused by the resistance to reduce the spring break opportunities, increasing spring durability, to better achieve the energy saving function.
Essential part for upgrading your Airsoft AEG
Aluminum Piston Head with Ball Bearing is renewed to be more effective
Weight(Gram): 19