BCM MK2 Standard 7″ 300 BLACKOUT Complete Upper Receiver Group w/ MCMR-5 Handguard

About the BCM® MK2 Standard 7″ 300 BLACKOUT Complete Upper Receiver w/ MCMR-5 Handguard

• 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 (5/8×24).

Whats included with this complete upper

• MCMR-5 Handguard
• MCMR-SM (MCMR Sling Mount)
• One 3″ Picatinny Rail Section
• 7.62/300BLK Flash Hider

BCM® 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, BCM® 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. BCM® also recommends running the Crane O-ring (provided with all BCM® Bolt Carrier Groups) over the extractor with 300 Blackout.