Tokyo Marui Piston Screw For G17 Gen 3 GBB Airsoft (# G17-6)

Tokyo Marui Piston Screw For G17 Gen 3 GBB Airsoft (# G17-6) Metal Construction Airsoft Piston Screw Design For Replace the Original Airsoft Internal Parts Suitable For G17 Gen 3 Gas Blow Back GBB Airsoft Pistol