AR-15 Upper Assembly – 10.5″ / 300 AAC / 1:8 / Linear Compensator / 12″ CBC Arms Keymod AR-15 Handguard / Rail

Rated 4.50 out of 5 based on 2 customer ratings
(2 customer reviews)

$359.00 $259.00

Out of stock

Email when stock available

If you are a dealer, please log in to your account to see dealer pricing.



Barrel: 10.5″ 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 Keymod Free Float Rail

Upper Receiver: Forged Upper Receiver

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


*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.



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


Additional information

Weight 2 lbs
Dimensions 16 x 11 x 2 in


Barrel Material

Barrel Coating

Barrel Length

Twist Rate


2 reviews for AR-15 Upper Assembly – 10.5″ / 300 AAC / 1:8 / Linear Compensator / 12″ CBC Arms Keymod AR-15 Handguard / Rail

  1. Rated 5 out of 5

    Calvin Kemp

    That is a true statement about the looks, quality, performance, price, and prompt service accompanying my purchase of this upper. (My third upper from CBC in as many months) Great accuracy with nice weight and the Hera
    linear compensator does a super job of pushing blast away from bench shooters. There is a backorder on the flip up sights but my email was answered the day I sent it with reasonable ship date. Doesn’t get much better than this company.

  2. Rated 4 out of 5


    Took a bit of work to get it right. They sent the wrong barrel and gas system the stated it came with. Would not shoot with carbine gas system. They made it right and no problems after that. All in all. Very good setup. I use this for SWAT team operations and it hasn’t failed when used in training or in field. Of course I haven’t fired it in field work. Hopefully won’t ever have too.

Only logged in customers who have purchased this product may leave a review.