AR-15 Upper Assembly – 20″ / .223 | 5.56 / 1:8 / Spiral Flute / 15″ Hera Arms Keymod AR-15 Handguard / Rail

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

$399.00 $219.00

Out of stock

Email when stock available

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


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 15″ Hera Arms Keymod design features Picatinny at the 12 o’clock position with Keymod slots at the 3, 6, and 9 o’clock positions to mount your favorite accessories.

7075-T6 Aluminum
Mil-Spec Anodized Receiver
Rifle Length Gas Tube Assembly
20″ .223|5.56 WYLDE Spiral Flute Barrel 
4150 Chrome Moly Steel Nitride Coated Barrel
Standard A2 Flash Hider
Twist Rate: 1:8
15″ Hera Arms Keymod Handguard/Rail with Picatinny

   *Does Not Include Bolt Carrier Group & Charging Handle*

Additional information

Weight 2 lbs
Dimensions 16 x 11 x 2 in



Barrel Length

Twist Rate

7 reviews for AR-15 Upper Assembly – 20″ / .223 | 5.56 / 1:8 / Spiral Flute / 15″ Hera Arms Keymod AR-15 Handguard / Rail

  1. Rated 5 out of 5


    I got this upper several months ago. I had it DuraCoated in Flat Dark Earth, put a Harris Bi Pod and a Luepold Mark AR Mil Dot scope and this thing turned out awesome. The spiral fluting on the barrels is really nice. I wish I could post a photo of it. This barrel is actually chambered in .223 Wylde which is not listed on the website. For those that don’t know .223 Wylde offers the accuracy of a .223 barrel with the ability to shoot the higher pressure 5.56 rounds as well. I would recommend checking this upper out.

  2. Rated 5 out of 5


    WELL DONE CBC!! Accurate, beautiful, well made upper. I only wish it had T-marks but, those really don’t matter when you get as high a grade product as this. I gave this as a gift to a young man who lost all his rifles in the fires in California. It brought him to tears when he opened the box.

    My primary reason for choosing this particular upper was the proven accuracy of this particular barrel. Another friend of mine bought the same barrel for a build he assembled last Spring for varmint hunting. He was routinely shooting squirrels out to 400 + yards with it and making it look way too easy.

  3. Rated 5 out of 5


    Light,thin great setup…think I need another.

  4. Rated 5 out of 5


    Just received my upper assembly… I have to say it surpassed all my expectations. First time buying from this company and I am very impressed… I will definetly be a repeat customer… Shipping was pretty fair, order came in within a week.. It was all pre assembled which was a bonus. And just absolutely spotless product… The pictures do not do this product justice its absolutely beautiful, very pleased.

  5. Rated 5 out of 5


    I have had this upper for a while now and it is awesome. Its everything that I expected and more. Its great for shooting out to longer distance and short always giving great accuracy. I haven’t had any problems with it. The only that sucked was the long wait for it but it was so worth it, and made with great quality. Definitely buying another upper from here.

  6. Rated 5 out of 5


    For those who wrote bad reviews about these uppers….I purchased this upper in hopes it would be a great addition to my custom build. I was beyond pleased with the craftsmanship. This upper has worked flawlessly. I was just able to finally shoot about 60 rounds through it and did not have 1 fail to fire or fail to feed. Was able to hold a 3/4 inch group at 100 yards. If I had bought a better scope I’m sure it would be even better. For sighting in a new scope and breaking in a new barrel this is a great group. I’m not one to write reviews but for those who badmouth these uppers because they are not as a well known manufacturer as other uppers be noted these are great uppers. They are on the heavier side but well worth it. I will definitely be buying another upper from CBC. The customer service is also exceptional. On a side note I shot a 62 grain bullet instead of 55 grain.

  7. Rated 5 out of 5


    Purchased this upper a month ago and have been tayloring match loads for 3 weeks now for NRA Highpower and EIC Matches. Net result using 69gr SMKs….1/4-1/3 MOA accuracy at 200yds and today, 3/4MOA at 600. Quality Stuff here, Hands Down! 69gr SMK HPBT Match, LC brass prepped, 25.1gr Varget and a OAL of 2.265″ using Forster bench rest seating die. Dumbfounded as it closely matches the accuracy of my F Class built 110BA at a fraction of the cost. Start with my pet load and adjust by .1gr increments and you’ll be Very Happy! Kudos CBC….you’ve got a winner here!

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