CYMA CGS AR Steel Receiver Pin w/ Detent, Spring Set & Dummy Receiver Pin Set For Tokyo Marui MWS GB

CYMA CGS AR Steel Receiver Pin w/ Detent, Spring Set & Dummy Receiver Pin Set For Tokyo Marui MWS GBB (Concave Type) Steel Construction Airsoft Receiver Pin Design For Upgrade The Original Parts More Durable Suitable For Tokyo Marui MWS Gas Blow Back GBB Airsoft Rifle