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

Icon - 5.56 NATO AR CaliberIcon - 1:7 Twist Rate
Rated 5.00 out of 5 based on 7 customer ratings
(7 customer reviews)

This AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. It is built around a 10.5 inch, 4150 chrome moly barrel and has a black nitride finish. The upper receiver is a forged M4 flat top upper, allowing you to easily attach rifle scopes and red dot sights to the picatinny rail.

$299.00 $199.00

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Stock Status: Available for Immediate Production

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Description

This AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. It is built around a 10.5 inch, 4150 chrome moly barrel and has a black nitride finish. The upper receiver is a forged M4 flat top upper, allowing you to easily attach rifle scopes and red dot sights to the picatinny rail.

Outfitted with a 10″ Gen 2 Keymod Rail that features a seven sided keymod design, resulting in 200% more attachable surface area of a standard keymod rail. The rail also features a full-length picatinny top rail that sits flush with the upper receiver and has anti-rotation tabs to keep it locked in place. This upper assembly comes with a standard A2 flash hider that effectively suppresses muzzle flash and protects the 1/2×28 barrel threads if you are planning on adding a muzzle break in the future.

  • 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
  • 10″ Gen 2 Keymod 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.

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

➲ Keymod Handguard

Your AR-15 handguard has huge implications in terms of how much you enjoy your shooting experience. Our Keymod handguard offers more than just the accuracy enhancements that come with a free-floating rail. It features a full length picatinny top rail that sits flush with M4 flat top receivers allowing you to have more space for optics and back up iron sights. The slim profile is comfortable to grip while still allowing enough room for low profile gas blacks underneath. This AR-15 handguard is machined from 6061 aluminum, has a hard coat anodized black finish, and the strong attachment of accessories to the Keymod handguard are unaffected by recoil.

➲ Upper Receiver

The foundation of all good AR's is built upon a dependable upper receiver. CBC upper receivers offer best-in-class quality while providing you years of dependable service. Boasting a MIL-SPEC type III hard coat anodized finish and machined from 7075-T6 forged aluminum, this M4 flat-top receiver delivers a lifetime of superior function. You want your AR built upon a solid platform - this receiver gives you the confidence that your AR-15 will function when it counts most.

➲ .750 Low Profile Gas Block

The gas block is a critical link in the chain that is too often overlooked. This component ensures that your AR runs reliably. Made from high-quality steel with a smooth nitride finish, this gas block is efficiently designed to stay put with the percussion of gunfire. With its low profile this gas block allows it to fit under the most ergonomically designed handguards and rails on the market.

➲ Carbine Gas Tube

An essential component to your AR15 is the gas tube, which keeps your build up and running. This gas tube is constructed from corrosion resistant stainless steel ensuring a lifetime of service.

➲ A2 Flash Hider

The muzzle device is designed to perform a specific task, like suppress flash intensity or reduce felt recoil. This A2 Flash Hider is machined from quality steel and finished with an exceptionally corrosion resistant salt bath nitride for a lifetime of service. It provides effective flash suppression that preserves the shooter\\\\\\\'s night vision by disrupting the muzzle flash when firing in low lighting conditions. While its closed bottom with top and side ports offers reduced dust signature when shooting from the prone position while additionally acting as a compensator.

➲ Barrel

The barrel is one of the few components that directly affect the accuracy and weight of your build. This barrel is chambered for 5.56 NATO ammunition and utilizes a .750\\\" gas block. It is corrosion resistant resulting in extended barrel life and has a nitride finish. This provides not only an impressive barrel life, but ensures excellent accuracy.

CBC provides a wide selections of AR-15 upper assemblies in a variety of styles and lengths - all partial AR-15 uppers are assembled with everything less the charging handle and bolt carrier group. Our partial upper assemblies offer quality and performance that will satisfy the most demanding shooter. Better yet, all CBC AR-15 uppers are custom built-to-order enabling us to provide you with the best prices you will find anywhere. The quality of our AR-15 uppers are backed by our Lifetime Warranty - if any CBC upper assembly becomes defective, we will repair or replace it at no charge. Get your AR-15 upper assembly at CBC today and save with free shipping!

Additional information

Weight 3.4 lbs
Dimensions 27.5 × 4.5 × 4.5 in
Platform

Caliber

Receiver Material

Barrel Material

Barrel Coating

Barrel Length

Twist Rate

Thread Pattern

Gas System Length

Rail/Handguard

Handguard Length

10"

Bolt Carrier Group & Charging Handle

No Bolt Carrier Group & Charging Handle

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

    Ron

    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

    Shane

    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

    Ken

    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

    Brian

    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

    Jason

    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 Industries.com for future builds.

    Copy link to view photo!
    https://c1.staticflickr.com/1/444/30745573694_9a609cd512_b.jpg

  7. Rated 5 out of 5

    Scott

    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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