BCM® MK2 Standard 16" 300 BLACKOUT Upper Receiver Group w/ MCMR-15 Handguard

MSRP: $935.00
Your Price: $725.90
(You save $209.10 )
(4 reviews) Write a Review
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BCM® 300 Blackout Upper Receiver Groups

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 (5/8x24).

Includes MCMR-15 Handguard

Includes MCMR-SM (MCMR Sling Mount)

Includes One 3" Picatinny Rail Section

Includes BCM® Comp Mod 1 - 762/300 BLK


Featuring BCM’s Patent Pending MK2 Upper Receiver
This proprietary design offers enhanced rigidity over the USGI product.  The increased rigidity limits barrel deflection which aids in consistency/accuracy.   Less flex also reduces premature damage, wear, and failure of bolt lugs from misalignment.   A gas expansion chamber is machined above the charging handle track, combined with dual vents machined at the rear (each side, above charging handle latch) help to redirect and vent gas away the shooters face.

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
  • Caliber: 300 Blackout
  • Barrel Length: 16.1+"
  • Barrel Material: 11595E Spec Steel
  • Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267)
  • Bore & Chamber: Chrome Lined
  • Weight: 3 lbs
  • Twist Rate: 1:7
  • Gas System: Carbine
  • Muzzle Device: BCM® Comp Mod 1 (762/300BLK)
  • Muzzle Threads: 5/8x24
  • Handguard: MCMR-15

Copyright 2017 Bravo Company MFG, Inc.
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

4 Reviews

  • 5
    Best upper receiver

    Posted by Eric Mynn on Jun 24th 2020

    Light amd hice upper receiver I ever owned. I have 14 guns and this one is the best.

  • 5
    BCM Upper and lower

    Posted by Eric M on Jun 19th 2020

    The best upper and lower. Bolt carrier group and charging handle are super nice. Thanks

  • 5
    16” 300 blackout MK2

    Posted by Sam on May 5th 2020

    Extremely happy with this upper. All ammo chambered well with 0 malfunctions. The whole firearm beats expectations and I have only zeroed in. Has to be one of the best rifles I have ever shot.

  • 5
    This upper is amazing. The quality of this product is as good as is gets. I was amazed with how solid this was built and how light it was. The hand guard feels good in your hand and is easy to grip and control. I will be buying more BCM products.

    Posted by Kyle on Apr 29th 2020

    Customer service was very helpful and answered all my questions in a timely manner. Product was shipped fast!