AR-15 Upper Assembly – 10.5″ / .223 | 5.56 / 1:7 / 10″ CBC Arms Gen 2 Keymod AR-15 Handguard / Rail

Rated 5.00 out of 5 based on 7 customer ratings
(7 customer reviews)

$289.00 $259.00

In stock

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This AR-15 upper assembly is made from the highest quality parts and the rails are engineered and manufactured in Germany with the remaining components being made within the United States. The 9″ Hera Arms Unmarked IRS is a modern designed, Quad-Rail Handguard that is built to handle the hardest use and abuse of tactical and competitive shooting.

7075-T6 Aluminum
Mil-Spec Anodized Receiver
Carbine Length Gas Tube Assembly
10.5″ .223 | 5.56 Barrel 
4150 Chrome Moly Steel Nitride Coated Barrel
Standard Flash Hider
Twist Rate: 1:7
12″ Hera Arms Unmarked IRS handguard/rail

 *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


7 reviews for AR-15 Upper Assembly – 10.5″ / .223 | 5.56 / 1:7 / 10″ CBC Arms Gen 2 Keymod AR-15 Handguard / Rail

  1. Rated 5 out of 5


    Purchased this upper for a SBR build and could not be happier. Ordered on 7/1/2016 and upper shipped on 7/7/2016. Fit and finish were superb, and it fir my PSA15 lower like a glove. Added a Fail Zero NBC BCG, CMC 3.5# trigger, and a Vortex Viper red dot. Took it to the range, and zeroed the red dot at 65 yds. Accuracy was incredible for such a short barrel, had several three shot groups that could be completely covered with a quarter! T

  2. Rated 5 out of 5


    So far excellent. Fit is perfect and I couldn’t be happier. Only have about 50 rounds through it with a non magnified red dot, but the accuracy seems to be really good. Looking to order my next CBC upper in 300 BO.

    Great job and great prices CBC!

  3. Rated 5 out of 5

    Gregg S

    Ordered my upper, started off by shipping a week earlier than expected, came in, great packaging and flawless. Dropped it on my new lower, threw a cheap 35$ truglo non magnified red dot on and off to the range I went. Being my first short barrel/pistol AR I wasn’t sure what to expect but now I think it’s going to be hard to go back to my 16″ & 20″ AR’s. Accuracy was spot on and 100% confident with every shot, especially for running the cheap red dot. The length, light weight and Center of balance perfectly over the Lower receiver I believe helped a lot, being able to steady quick and not getting a lazy posture after shooting a while.
    Only reason I did not give 5 stars was due to heat transfer into the handguard. Being so lightweight I was expecting a fair amount of heat, but it got hot fast and quick, first mag I emptied without stopping after sighting in, but luckily I found myself most comfortable gripping the mag well anyways and decided to throw a magwell grip on there. Last “negative” is the common/typical AR dislike for steel cases, only liked the brass. Might change after I get some more rounds thru her, might not. A lot longer review than I planned, but wasn’t much for reviews when I bought and hopefully this will help someone make a decision to buy this, or another receiver or not. I would put money their other uppers/parts are on par with this item.

  4. Rated 5 out of 5


    First I would like to thank the Veterans at CBC Industries for there services keeping us free so we can do what we like to do. Well it is nice to see such a well built upper and built in the US by Veterans and Americans the fit and finish is very nice thank you CBC. I will be letting all my friends know about CBC. I ordered my 10.5- 556 upper on 2/6/17 and received it on 2/13/17 great services

  5. Rated 5 out of 5


    Great job fellows , got it and put it on fired flawless.. Love the quality ,you have a new customer . I have 6 lowers guess where I will be shopping.. One reason I chose CBC was it employed vets. Thank you boys for your service.

  6. Rated 5 out of 5


    Purchased this late last year. The quality of this barreled upper overshadowed the lengthy wait time to receive it.
    Very happy look forward to purchasing from CBC for future builds.

    Copy link to view photo!

  7. Rated 5 out of 5


    im quite pleased with this upper…..although the gas block was not tread-locked (came loose while test firing) the fit of the rail, the finish and quality of the parts are very nice. lead time was 2 weeks , i received a call from customer service after 2.5 weeks (which i thought was pretty cool) saying the rail was back ordered although they were expected to be in the next day and they would be building my upper asap upon there arrival. 7 days (including a weekend) later it arrived. ive put over a hundred rounds though it since tightening and tread-locking the gas block with zero issues. i will definitely be looking to CBC for future builds. Thanks CBC!!!

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