Tokyo Marui Firing Pin Lock For Hi Capa 5.1 GBB Airsoft (Part # H51-50)

Tokyo Marui Firing Pin Lock For Hi Capa 5.1 GBB Airsoft (Part # H51-50) Metal Construction Airsoft Firing Pin Lock Design For Replace the Original Parts Suitable For Hi Capa 5.1 GBB Airsoft Pistol