Angry Gun MWS High Speed Bolt Carrier (BC* Style) for Marui M4 MWS GBB Rifle (Dark Earth)

Angry Gun MWS High Speed Bolt Carrier (BC* Style) for Marui M4 MWS GBB Rifle (Dark Earth) 6061 Aluminum With Steel Parts Construction Suitable for Tokyo Marui M4 MWS Series Airsoft Gas Blow Back GBB Rifle Super Lightweight to Increase ROF (Rate of Fire) Engraved "BC" Marking