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Bravo Company Manufacturing MK2 Carbine Barreled Upper KMR-A10 - 12.5"

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NOTE: This upper assembly has a barrel less than 16” in length. These uppers are intended for use in AR pistol or legal short-barreled rifle builds. Other configurations may violate Federal law.

With a platform as optimized as the AR, it seems like nothing more can be changed to improve function. BCM is proving everyone wrong with this new line of MK2 upper receivers. The new line of Bravo Company MK2 AR-15 Barreled Upper Receivers come with a ton of patent pending innovative features and quality of life improvements. One such feature is the redesigned internal geometry to increase rigidity with the barrel extension to reduce barrel deflection and increase accuracy. The rigidity also reduces premature wear and ensures bolt lug alignment to prevent damage. A gas expansion chamber is machined in above the charging handle track combined with dual gas vents to redirect excess gas away from your face. A very simple yet effective change that was made is the reduced size of the forward assist. It has been reprofiled to prevent you from bashing your knuckles when charging the rifle with your right hand. This Bravo Company USA MK2 Barreled Upper Receiver is a step forward in the AR-15 industry.

  • 12.5” barrel chambered in 5.56
  • Government barrel profile
  • Machined MIL-B-11595E barrel steel
  • Manganese Phosphate coated
  • Chrome lined bore and chamber
  • HPT and MPI
  • 1:7 twist rate with carbine gas system
  • MK2 improved upper receiver
  • Increased rigidity with barrel extension
  • Gas expansion chamber and venting system
  • Shortened forward assist
  • T-marked picatinny rail
  • 10” KMR-A10 KeyMod free float handguard
  • Includes 3” picatinny rail and KeyMod sling mount

The BCM MK2 upper receiver features a 12.5” barrel chambered in 5.56 NATO with a 1/7 twist rate. Fully Manganese Phosphate coated, this barrel is machined from USGI Mil-Spec CMV machine gun barrel steel with a hard chromed bore and chamber. It features a government profile to improve rigidity. Additionally, every barrel is high pressure tested and magnetic particle inspected before leaving the factory floor. The carbine length gas system is the optimal length for a 12.5” barrel and offers boring reliability with a properly weighted buffer. It is recommended to use an H2 buffer for the perfect balance between reliability and low recoil, but it will be dependent on the ammo you are using.

This barreled AR-15 upper receiver comes with the 10” KMR-A10 free float handguard with KeyMod attachment slots. It is machined from lightweight and heavy duty aluminum and hardcoat anodized black along with the upper receiver. All you need is a bolt carrier group and charging handle and you will have a completed upper receiver assembly.

Expect nothing less than professional grade weaponry from Bravo Company Manufacturing, one of the nation’s largest stocking inventories of AR-15, M4, and M16 parts and accessories. Their products have been used by many United States law enforcement agencies, US Border Patrol, HQ SOCOM, US Army, US Navy, US Airforce, US Marines, US Coast Guard, and more. They believe in providing responsible citizens with the means to defend themselves and will continue to do so for many years to come.
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Barrel CoatingManganese Phosphate
Barrel ContourGovernment
Barrel Length12.5
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandBravo Company Manufacturing
Caliber Gauge5.56 NATO
Gas System LengthCarbine
Gas System TypeDirect Impingement
Handguard10 in Bravo Company KeyMod Alpha KMR
Muzzle DeviceA2 Flash Hider
Thread Pattern1/2 X 28
Twist Rate1:7

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