BCM® Standard 9″ 300 BLACKOUT Complete Upper
About the BCM® Standard 9″ 300 BLACKOUT Complete Upper Receiver w/ MCMR-8 Handguard
- Continuous taper barrel profile designed for optimal weight, balance, and performance.
- Barrel profile fluted toward the rear near chamber area – Increases strength and heat dissipation.
- 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
- Includes MCMR-8 Handguard
- Includes MCMR-SM (MCMR Sling Mount)
- Includes One 3″ Picatinny Rail Section
- Includes BCM® Comp Mod 1 – 762/300 BLK
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 with a H3 buffer with high velocity ammo. If running subsonic ammunition, it is recommended to run your suppressor and a carbine 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.
Specs
-
- Caliber: 300 Blackout
- Barrel Length: 9″
- Barrel Material: 11595E Spec Steel
- Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267)
- Bore & Chamber: Chrome Lined
- Weight: 2.2 lbs
- Twist Rate: 1:7
- Gas System: Pistol
- Muzzle Device: BCM® Comp Mod 1 (762/300BLK)
- Muzzle Threads: 5/8×24
- Handguard: MCMR-8
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