AR-15 Upper Assembly – 10.5″ / 300 AAC / 1:8 / 9″ Hera Arms IRS AR-15 Handguard / Rail

Rated 4.25 out of 5 based on 4 customer ratings
(4 customer reviews)

$396.94 $249.00

In stock

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This AR-15 upper assembly is a complete Hera Style upper assembly that features a 10.5″ 300AAC barrel and 9″ Hera Arms Unmarked Quad Rail with sling QD. In addition, this assembly is made from the highest quality parts and is assembled in Charleston, South Carolina.


Barrel: 10.5″ 4150 Chrome Moly Steel Nitride Coated Barrel

Twist Rate: 1/8

Feed Ramps: M4

Gas Block: Steel .750 Low Profile

Gas Tube: DGI Stainless Pistol-Length

Muzzle Device: Steel A2 Style Flash Hider

Rail: either 9″ Hera Arms Unmarked IRS Free Float Quad Rail

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


4 reviews for AR-15 Upper Assembly – 10.5″ / 300 AAC / 1:8 / 9″ Hera Arms IRS AR-15 Handguard / Rail

  1. Rated 4 out of 5


    I just got this receiver and haven’t assembled so I can’t review how it shoots yet. The barrel and Hera hand guard look really nice, but there are multiple blemishes on the finish of the receiver itself. I plan on having it DuraCoated so its no big deal.

  2. Rated 3 out of 5


    I have not shot thia yet but will follow up with another review after i do.

    Pros: fast shipping and was packaged very well. Everything feels solid and fit well on the lower and the price is great. Customer service in helping my selection was very friendly and good. Overall finish is excellent havent found any issues on it yet but its unfired.

    Cons: only trace of oil i found was on the dust cover otherwise rifle looked and felt bone dry. It came with a compensator attached that i had ordered separate and the actual flash hider is mia. The rail is a couple mills lower than the upper.

  3. Rated 5 out of 5


    Just completed my build with this addition. For this build I went with a New Frontier Carbon Lower. Rock River parts kit and Rock River BCM BCG. This complete upper lined up perfect with my lower and feels amazing. I’m loving the IRS rail system and the addition quick sling points. My magpul bugs CoWitnessed with my Aim AimPoint is flawlessly lined up. Can’t wait for my next build and try out your CQR stock!

  4. Rated 5 out of 5

    Christy Curry

    Purchased one of these uppers and the quality is good. I dropped it right on a lower and it ran like a champ. I would totally buy from these guys again.

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