This Co2 magazine based cap is made of metal. The patented design of 2 rotations (Inner silver / outer bronze) allow better air sealing and pierce of the Co2 caninster more easily.
A.P.S. CO2 Magazine Base for ACP601 GBB Pistol
Full Metal Construction
Suitable for A.P.S. CO2 Action Combat (ACP601) Series Airsoft Gas Blow Black GBB Pistol Magazine
