AR-15 Upper Assembly – 10.5″ / 300 AAC / 1:7 / Linear Compensator / 12″ CBC Arms Keymod AR-15 Handguard / Rail

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

$359.00 $259.00

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This AR-15 upper assembly is made from the highest quality parts and is assembled in Charleston, South Carolina. This particular AR-15 upper assembly features a linear compensator with the 12″ CBC Arms Keymod design is the classic Picatinny handguard/rail.



Barrel: 10.5” 300AAC Melonite Barrel Chrome Moly

Twist Rate: 1:8

Feed Ramps: M4

Gas Block: Steel .750 Low Profile

Gas Tube: DGI Stainless Pistol-Length

Muzzle Device: Hera Style Linear Compensator

Rail: 12″ CBC Free Float Keymod

Upper Receiver: Forged Upper Receiver

Upper Components: Mil-Spec Forward Assist, Mil-Spec Dust Cover, and Brass Deflector



Failure to observe safe firearm handling practices may result in serious bodily injury or death. CBC Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product. Additionally, it is highly recommended that the firearm (as with all new firearms) is thoroughly inspected, cleaned and oiled prior to use.

*Does not include Bolt Carrier Group & Charging Handle

Please Note: An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law. Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.

Additional information

Weight 2 lbs
Dimensions 16 x 11 x 2 in


Barrel Material

Barrel Coating

Barrel Length

Twist Rate


1 review for AR-15 Upper Assembly – 10.5″ / 300 AAC / 1:7 / Linear Compensator / 12″ CBC Arms Keymod AR-15 Handguard / Rail

  1. Rated 5 out of 5


    Received mine 10 days after I ordered. I must say it’s awesome! Can’t beat the price and it makes it one of the best values for a 300 blk on the market! Shot 30 total round first day at 50 yards to sight and all groupings were literally within 1 inch… can’t wait to get another.

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