AIP Piston Head For Marui 5.1/ 4.3 / 1911

– Replace the original plastic Piston head of airsoft pistol
– With O-ring (FKM)
– Suitable for Marui 5.1/4.3/1911 Series Airsoft Gas Blow Black GBB Pistol
– As always, upgrading GBB require necessary skill & technique, consult expertise if needed

Major Color : White
Built Material : POM