G&P Outer Barrel Set for Tokyo Marui M4A1 MWS GBB Rifle

G&P Outer Barrel Set for Tokyo Marui M4A1 MWS GBB Rifle Aluminum Construction Suitable For Tokyo Marui MWS Series Airsoft Gas Blow Back GBB Rifle Include: Marui MWS 42mm Outer Barrel Base (16M) (MWS001) MWS CQB / M733 / M4 Outer Barrel Extension (16M) (14mm Anti-Clockwise)