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BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ BCM MCMR-8 Handguard (NFA)

BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ BCM MCMR-8 Handguard (NFA)
300 BLACKOUT Barreled Upper Receiver Group with BCM MCMR-8


 
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List Price: $870.00
Our Price: $639.95
You save $230.05!


Stock Status:(Out of Stock)
Product Code: BCM-URG-300BLK-9-MCMR-8

Add BCM® Bolt Carrier Group with Upper Group

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The one and only BCM® milspec Bolt Carrier Group!
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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 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: 9"
  • Barrel Material: 11595E Spec Steel
  • Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267)
  • Bore & Chamber: Chrome Lined
  • Weight: 2.2 lbs
  • Twist Rate: 1:7
  • Gas System: Pistol
  • Muzzle Device: BCM Comp Mod 1 (762/300BLK)
  • Muzzle Threads: 5/8x24
  • Handguard: MCMR-8





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Average Customer Review: 5 of 5 Total Reviews: 24 Write a review.

  0 of 1 people found the following review helpful:
 
July 22, 2019
Reviewer: KRISTOPHER DIMAURO from JACKSONVILLE, NC United States  


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  0 of 1 people found the following review helpful:
 
July 17, 2019
Reviewer: Paul Petras from Pittsburgh, PA United States  
Truly awesome.

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  0 of 0 people found the following review helpful:
 
Product looks and functions great. July 17, 2019
Reviewer: Jeff Edwards from bedford hts, OH United States  
Only part I would change is choosing of a muzzle device. Don't remember there being a good description of what the devices are designed to do. Kinda leave ya guessing on what ur getting.

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  0 of 0 people found the following review helpful:
 
Fantastic upper July 17, 2019
Reviewer: Anonymous Person from Issaquah, WA United States  
Upper performs flawlessly. I love how light weight it is. The M-LOK rail is great; it is nice and slim and therefore easy to grip, and saves weight because you only attach rail sections where you need them.

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  1 of 1 people found the following review helpful:
 
Wow July 17, 2019
Reviewer: John Rusyn from Cape Coral, FL United States  
I have been looking for a .300 BLK. upper for several months . I done the reading , asked the forums and reviewed the top tube video.
Went with the BCM and can't be happier!. First at the unboxing the fit and feel is fantastic. A totally solid and well made piece of iron.
For range placed on a SBR lower and ran flawlessly with 220 grain subs.  Switched out the muzzle brake which worked great, so it would accept my Surefire 300 SPS can also switched to a H2 buffer and continued to run with the 220 gain subs . And ran without a hiccup . My Mk 18 is going back into the safe. This has become the truck gun and my go to rifle. Thank you BCM for a rifle I can be proud of and depend on without question.

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