AR-15 Upper Assembly – 14.5″ / .223 | 5.56 / 1:8 / Pinned & Welded / Linear Compensator / 15″ Hera Arms Keymod Handguard / Rail

Rated 4.75 out of 5 based on 8 customer ratings
(8 customer reviews)

$399.00 $299.00

Only 2 left in stock

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The upper is assembled in Charleston, SC with high-quality material, meticulous workmanship & incredible prices.
The flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper! To ensure even more strength they are Mil-Spec Type 3 hard coat anodized.


This 14.5” .223 /5.56 wylde barrel is made from 4150 Chrome Moly steel! This SBR has a 1:8 twist rate, carbine gas system and head spaced twice from the US manufacturer. This barrel is incredible accurate and durable, the strength comes from the 4150 CM steel and the Nitride coating! The overall length if the barrel is 16″ with the pinned and welding, therefore you don’t need a tax stamp!
The rail is engineered and manufactured in Germany. 15” Hera Arms Keymod rail’s design is modern and the best value on the market. It is made from Airplane Aluminum then CNC milled! The rails are then hard coat anodized to improve the strength! To top it off, Hera’s “Anti-Turning Milling” eliminates turning of the rail so your scope is always zeroed in!



Barrel: 14.5” .223 /5.56 wylde barrel is made from 4150 Chrome Moly

Twist Rate: 1:8

Feed Ramps: M4

Gas Block: Steel .750 Low Profile

Gas Tube: DGI Stainless Carbine-Length

Muzzle Device: Hera Style Linear Compensator

Rail: 12′ Hera Arms 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.

Additional information

Weight 2 lbs
Dimensions 16 x 11 x 2 in


Barrel Material

Barrel Coating

Barrel Length

Twist Rate


8 reviews for AR-15 Upper Assembly – 14.5″ / .223 | 5.56 / 1:8 / Pinned & Welded / Linear Compensator / 15″ Hera Arms Keymod Handguard / Rail

  1. Rated 5 out of 5

    Andrew Richards

    CBC caught my eye with their wide range of pre-assembled uppers at a great price. After ordering this little beauty, I was like a kid on Christmas eve, trying not to drive myself crazy waiting for my upper to show. The wait was well worth it. The finish on the upper was great, and fit my lower with almost no play. Everything lined up perfect, and the Hera Arms rail looks great. Thanks to Lorraine for being so patient with my “is it done yet” calls.

  2. Rated 5 out of 5

    Jim Dolehide

    Finally received this one in the mail. The fit and finish are awesome. The craftsmanship is great. The Hera Arms hand guard is really nice. There is no play whatsoever when I put this upper on a anderson lower. Great Product

  3. Rated 4 out of 5

    Tim Dietrich

    The picture showing the comp sticking about an inch out of the handguard misrepresent what you actually get. I was going for a shorter build, but what I got was exactly the same length as one with a 16 inch barrel and an A2 flash hider because the comp is 3 1/2 inches long. Other than that it looks good as far as fit, finish, and build quality.

  4. Rated 4 out of 5

    Jesse Wostenberg

    This was my first purchase from cbc and it took a little longer(1week) to recieved then originally expected. There was a hurricane, so I don’t blame the company one bit. Once shipped it made it across country very fast! The packaging was solid and kept the upper safe on it travel. The picture of the upper is a little misleading as another reviewer mentioned. The linear compensator does stick out further on actual product then it does in the picture. This would be perfect if Hera made a 16″ rail. Unfortunately, either in the build or general handling, the compensator is covered in scratches and there is a chip out of the end. It by no means will effect the use, it just kinda sucks…. The Hera rail is perfect, nice and small with great contour that rest easy in the hand. The upper does have a little play when mated with my Anderson and Colt lower and minimal play when mated to my Noveske. Overall I’m happy with the purchase and will likely be doing more purchases with CBC Industries.

  5. Rated 5 out of 5


    I just tried out my 14.5 upper with linear comp and wow. What a gun gun to shoot. The comp works better them my buddies more expensive one and looks super cool too, so thats a bonus. Also this is one of the more accurate uppers I’ve had. It put 10 shots almost touching at 50yds. Awesome performance for such a great price

  6. Rated 5 out of 5

    Tony Mac

    Did a lot of searching for the upper I wanted and everything lead me here to CBC, I received it in the mail today. ITS PERFECT! Exactly what I was looking for! Thank you CBC!

  7. Rated 5 out of 5


    Ordered my 14.5inch upper with pinned Flash Hider. Only took a week to arrive and when I opened it I was overwhelmed with awh. Fits well with all my lowers and is a great size over all. Would definitely buy again and recommend.
    Thanks CBC!

  8. Rated 5 out of 5

    Tom C.

    Great upper, I love it! I’ve ran around 400 rounds through it with no issues. It looks fantastic with the Hera handguard and the pinned compensator. Overall length of the upper is just over 17 inches in case anyone is wondering. Upper was well packaged and shipping took about a week and half. Overall definitely recommend to anyone looking for a good looking and functional upper.

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