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

BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ BCM KMR-Alpha 8" Handguard (NFA)
300 BLACKOUT Barreled Upper Receiver Group with BCM KMR-A8


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


Stock Status:In Stock
Product Code: BCM-URG-300BLK-9-KMR-A8

Add BCM® Bolt Carrier Group with Upper Group

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The one and only BCM® milspec Bolt Carrier Group!
BCM Charging Handle Options



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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 KMR-A8 KeyMod Handguard.

Includes KMSM (KeyMod Sling Mount)

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: KMR-A8





Copyright © 2015 Bravo Company MFG, Inc.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 103 Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 9" 300 Blk Upper October 17, 2019
Reviewer: Thomas K. from WV  
Great fit and finish. This upper has cycled about 500 rounds of both subs and supers reliably so far. The KMR-Alpha rail is one of the nicest rails I've had on any gun, it just fits your hand right. If you are looking for a great upper at a great price, you won't go wrong with BCM.

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  0 of 0 people found the following review helpful:
 
5 of 5 300 BLK 9 in upper. October 17, 2019
Reviewer: James Rose from Park City , UT United States  
It was a quick delivery, and it showed up in good shape. It was for a coworker, who traded me a mountain bike for the upper. We work at Park City Gun Club and we have a customer who has the same upper. We've shot it a bit and we both love it and will continue to buy your products. Also the gunfighter charging handle kicks ass. That's all I have to say about that.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great Product! October 17, 2019
Reviewer: Anthony Zeman from Graniteville, SC United States  
BCM has done their homework with this upper.  Properly gassed and when used with their recommended buffer, ejection pattern is excellent.  I've heard of feed issues with supersonic ammo and pistol gas system.  Tested with 110gr ammo, the only feed issues were magazine related (rounds are short and move around in magazine, use mags with stout springs to prevent ammo movement), no problems at all with upper.  Again, flawless operation, great product!

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  0 of 0 people found the following review helpful:
 
5 of 5 BCM 300 blackout upper October 17, 2019
Reviewer: Miguel from Clarksville, TN United States  
Fast shipping, Excellent upper and I'm loving the KMR rail!!
I will definitely recommend to friends

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  0 of 0 people found the following review helpful:
 
5 of 5 Quality delivered fast October 17, 2019
Reviewer: Anonymous Person from OH United States  
Bravo made quick deliver on a quality product. Couldn't build it  for less. Key mod hand guard has a good feel in my hand instead if a strait railed setup. Carbine buffer will cycle super and subsonic ammo. I added the bcm bolt group since it is offered at an incredible value if you buy the upper.

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