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

MSRP: $1,092.50
Your Price: $836.45
(You save $256.05 )
Maximum Purchase:
5 units
300 BLK
Barrel Length:
Barrel Style:
Stock Status:

Out of stock

About the BCM® Standard 16" 300 BLACKOUT Complete Upper Receiver w/ MCMR-15 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 (5/8x24).

Whats included:

  • MCMR-15 Handguard
  • MCMR-SM (MCMR Sling Mount)
  • One 3" Picatinny Rail Section
  • 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.


  • 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

Shop Related Products:

Want to see more upper receivers? Click the links below to view more BCM® AR complete uppers!


Bravo Company builds: Life Saving Tools™
Copyright 2023 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.***

14 Reviews

  • 5
    BCM Quality

    This is my third upper from BCM. Like the other two uppers this is a great upper. BCM is the best product for your money.

  • 5
    Worth the money

    It is a well made upper receiver and it fit well on my lower. it shoots great and it’s not very heavy.

  • 5
    Upper receiver

    Absolutely phenomenal, no reliability issues performed flawlessly. Couldn’t be happier.

  • 5
    300 Blackout upper

    High quality product. Fits perfect and very tight with my Recce 14 lower. Shot sub MOA out of the box. Bravo does business the right way, good communication and fast shopping.

  • 5
    300 BLK Upper

    Just received my upper. Service was excellent and it arrived in just a few business days. Looking forward to getting to the range.

  • 5
    Customer review

    Review body is empty

  • 5
    Customer review

    Awesome product well package not a scratch or nick fit great 10 shot zero on irons plus got a ton of merchandise with my order will def be buying more

  • 5
    BCM Standard 16" 300 BLACKOUT Upper Receiver Group

    This upper looks awesome and fits very well with one of the BCM lowers that I already had. I will post another review once I put a few hundred rounds down range with it.

  • 5
    Customer review

    I am totally satisfied with this product. It has performed perfect right out of the box.