Bravo Company Manufacturing Standard 300 BLK AR-15 Barreled Upper Receiver - MCMR-13 Handguard - 16"

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Expect nothing less than professional grade weaponry from BCM. This Bravo Company Manufacturing Standard 300 BLK Upper Receiver Group with a MCMR-13 handguard is built around a 11595E Mil Spec steel barrel. The barrel profile is tapered for optimal weight and balance. It includes one 3" picatinny rail section.

  • Chambered in 300 Blackout
  • 11595E Spec Steel Barrell
  • Manganese phosphate barrel finish
  • Chrome lined bore and chamber
  • 3 lbs
  • 1:7 Twist Rate
Notice from the manufacturer:

“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 carbine buffer with subsonic ammo and a H3 buffer with high velocity ammo. 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.”
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Barrel CoatingManganese Phosphate
Barrel ContourTapered
Barrel Length16.1
Barrel LiningChrome
Barrel MaterialSteel
BrandBravo Company Manufacturing
Caliber Gauge300 Blackout
FinishHardcoat Anodized
Gas System LengthCarbine
Gas System TypeDirect Impingement
Handguard13 in Bravo Company MCMR M-LOK Rail
Muzzle DeviceBCM Mod 1 Compensator
Thread Pattern5/8 X 24
Twist Rate1:7
Weight3 lbs
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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