Bravo Company MFG (BCM) .300 Blackout Partial Upper Receiver w/ MCMR-5 - 7"

BCMA(R) has taken great care to ensure the best possible performance and interchangeability. However, due to the large operational range of 300 Blackout ammunition in the market place, BCMA(R) cannot guarantee function will all ammunition types in all conditions. These barrels were designed to run High Velocity ammo only with a H3 buffer. Fine tuning may be required in limited instances based on ammo and buffer choices that work best for the desired application. BCMA(R) also recommends running the Crane O-ring (provided with all BCMA(R) Bolt Carrier Groups) over the extractor with 300 Blackout. Features: BCMA(R) 300 Blackout Upper Receiver Groups Continuous taper barrel profile designed for optimal weight, balance, and performance. Tapered barrel profile out front, for easier maneuverability. No sharp handguard cap shoulder for improved barrel harmonics and improved accuracy. Muzzle threaded in standard 30 cal (5/8x24). Includes MCMR-5 Handguard Includes MCMR-SM (MCMR Sling Mount) Includes One 3" Pic