BCM® Standard 16" 300 BLACKOUT Upper Receiver Group w/ KMR-A13 Handguard

MSRP: $1,017.50
Your Price: $775.45
(You save $242.05 )
(45 reviews) Write a Review
300 BLK
Barrel Length:
Barrel Style:
Stock Status:

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 KMR-A13 KeyMod™ Handguard.

Includes KMSM (KeyMod™ 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 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: KMR-A13

Copyright 2015 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.***

45 Reviews

  • 5
    Vickers tactical recamended

    Posted by Dennis on Jun 4th 2020

    I watch vickers on YouTube. He swears by bcm. I found 300 blackout uppers as cheap as $300. But i went with bcm. I spent a lot more then i wanted to and i had my doubts. I built my 300 blackout and i will say it was money well spent. The fit and finish were prefect. You can feel the quality in every piece. Reliable, accurate, and just the over all package gives you a weapon that feels and acts like it is 3x the price. I also got the 300 bolt to go with it. I'll be back for my next build.

  • 5
    300 BLK Upper

    Posted by CP3 on Dec 12th 2017

    I never take time to write reviews, but I am making an exception here. Flawless function. Extreme accuracy. Light weight. Great for using subsonic ammo. You can purchase a less expensive 300 BLK upper, but do yourself a favor and go with BRAVO. You will live longer with a gun that works.

  • 5
    Customer review

    Posted by Douglas Campbell on Nov 12th 2017

    Review body is empty

  • 5
    Exceeded my expectations

    Posted by Steve on Nov 5th 2017

    Stellar quality and function, getting 1" groups with Fiocchi 125-grain SST.

  • 5
    Excellent upper

    Posted by Williams Fuentes on Oct 27th 2017

    Very happy with this upper I think is one of the best in the market.

  • 5
    300 blackout upper

    Posted by Jake Wingert on Feb 6th 2017

    Very good experience. Fast ,painless and professional

  • 5
    Quality Products

    Posted by anonymous on Dec 28th 2016

    I am very satisfied with my BCM upper. It is very accurate and built to last. It gives me a lot of confidence knowing I am carrying a high quality upper that I can count on when I need it. It is a great product at a reasonable price.

  • 5
    BCM Standard 16" 300 BLACKOUT Upper

    Posted by James Bowra on Dec 28th 2016

    Great experience! Company was fantastic to deal with. Shipping was very fast! Rifle is superior quality and I'm expecting years of reliable service or of it!

  • 5
    BCM 16inch 300BLK

    Posted by William Bishop on Oct 13th 2016

    This is my 4th BCM upper, all have been sub MOA rifles. Last year I sold my gear and purchased a complete BCM RECCE 16 in 5.56. With 1000's++ of rounds through that platform, the Recce is my favorite rifle yet - zero failures. I've run it super light with just an aimpoint, great truck gun. I've also run it with a 3-10x Bushnell Elite Tactical and bipod, very capable.
    While waiting on approval for a Surefire SOCOM 300 SPS for the Recce, I convinced myself to purchase this 300 BLK upper in 16. Plan to cut/weld my Surefire muzzle device around 14.0 ----- As always, nothing but the best from BCM. Zero problems with subsonic loads (only have tried Federal ammo). While doing my initial sight-in at 50 yards with an Aimpoint, 3 SIG SAUER 125gr Supersonic loads made 1 hole. All my battle rifles will come from BCM, my next precision upper (SPR) will also come from them. Thank you guys for what you do.