BCM® KD4 Spec Complete Upper Receiver Group w/ QRF-12

MSRP: $1,240.95
Your Price: $907.95
(You save $333.00 )

M4 Feed Ramp Barrel Extension (USGI)

M4 Feed Ramp Flat Top Receiver

T-Marked Upper Receivers

1/7.7 Twist Rates

5.56 NATO Chamber (USMC SAM-R)

410 Stainless Steel

Stock Status:

Out of stock

About the BCM® KD4 Spec Complete Upper Receiver w/ QRF-12 Handguard

KD4 Upper Group with twist rate designed for 77 grain Black Hills ammunition.

Upper Group features: BCM® SS410 16" Mid Length Upper Receiver Group w/ BCM® QRF-12 Handguard, 1/7.7 Twist Ionbond Finish on barrel.

"Black Hills Ammunition has been making the most accurate and lethal 5.56 cartridges for years. In particular, their 77 grain OTM or MK 262 variants as its known in the military has performed without fail for over 20 years. I have used it myself and consider it lifesaving equipment.
As a military sniper I came into service when BH 77 grain was gaining favor with my community and also when my community began the concept of what's now known as the MK 12 5.56 light sniper rifle.
Over the years and through many rounds, testing and evaluations I, along with others, discovered that a twist rate of 1/7.7 is the absolute best for optimizing performance from Black Hills 77 grain ammunition. Now thanks to BCM® anyone can buy a complete upper tailor made for use with BH 77 grain variants."
Kyle Defoor
June 2017

About Kyle Defoor

Kyle Defoor is a professional shooter who teaches firearms and tactics to military, law enforcement, and civilians. Specializing in pistol, carbine, urban sniper, and CQB, Kyle gained his knowledge from decorated combat service in multiple war fronts as a special operator and as one of the first and premier tactical trainers in the world. An active motorcyclist, hunter, climber, runner, and waterman he can be seen on multiple TV shows, magazines, websites, and on ranges worldwide.

Please visit Defoor Proformance Shooting

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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.***

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2 Reviews

  • 5

    I was alittle hesitant at first because of the price but its worth every penny. Shipping was fast and came with alot of goodies. Upper is well built and shoots even better. Once i got it sighted in it was shooting half moa groups with bh 77 grain and my 77 grain hand loads. Cant wait to shoot it at distance and would recommend this upper to anyone. Even tho it is a quad rail it’s relatively light still.

  • 5
    Superb Quality

    Couldn't be more pleased. Highly recommend this upper for overall quality and precision. Sub MOA with handloads if I do my part. (Five rounds in .87 inch at 100yards, 25.4 gr Varget pushing 69 gr. SMKs.)