BCM 4URM4 BCM M4 Upper Assembly MultiCaliber 7075T6 Aluminum Black Anodized Receiver for AR15

Bravos BCM M4 Upper Receiver Assembly is precision machined to correct MilSpecs from 7075 T6 forgings extension providing the user with superior strength when dropped or when mortaring malfunction clearance drills. It has MilStd 1913 Rail for mounting optics and accessories MilSpec forward assist with heat treated tool steel pawl press fit and pinned cap and a hard coat anodized finish. NOTE: Requires charging handle barrel handguard gas block muzzle device gas tube and BCG Bolt Carrier Group to complete.