BCM® Standard 9" 300 BLACKOUT Complete Upper Receiver Group w/ MCMR-8 Handguard
The BCM® Standard 9" 300 Blackout Upper is engineered for optimized weight, balance, and performance. Featuring a continuous taper barrel for improved harmonics, a chrome-lined bore and chamber, and a rugged MCMR-8 free-float M-LOK handguard. Includes BCM® Comp Mod 1 (762/300BLK), sling mount, and 3" rail section. Ideal for suppressed setups and versatile .300 BLK configurations.