Asura Dynamics CNC Aluminum Bolt Carrier for Marui M4 MWS GBB (Gold)

Asura Dynamics CNC Aluminum Bolt Carrier for Marui M4 GBB (Gold) CNC Aluminum Construction ( Rigid, Durable and Lightweight ) Suitable for Tokyo Marui MWS M4 Series Airsoft Gas Blow Back GBB Rifle which will enable a higher rate of fire while reducing wear and tear between parts, the inserted steel reinforcement for bolt stop also enables a firm bolt stop action Distinctive-looking, smooth surface won