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AR-15 Upper Assembly – 20″ / .223 WYLDE / 1:8 / Spiral Flute / 15″ CBC Keymod AR-15 Handguard / Rail

Icon - .223 Wylde AR CaliberIcon - 1:8 Twist RateIcon - 20 AR Barrel
(9 customer reviews)

This AR-15 upper assembly is made from the highest quality parts and is assembled by United States veterans in Charleston, South Carolina. The 15" CBC Arms Keymod design is our most popular design. 7075-T6 Aluminum Mil-Spec Anodized Receiver 20" .223|5.56 WYLDE Barrel 4150 Chrome Moly Steel Phosphate Coated Spiral Barrel Standard Flash Hider Twist Rate: 1:8 15" CBC Arms Keymod Handguard/Rail *Does not include Bolt Carrier Group & Charging Handle - [READ MORE BELOW]

$369.00 $279.00

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Stock Status: Available for Immediate Production

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Description

ar 15 upper assembly 20 223 5 56 spiral flute 15 cbc keymod ar 15 handguard rail

This AR-15 upper assembly is made from the highest quality parts and is assembled by United States veterans in Charleston, South Carolina. The 15″ CBC Arms Keymod design is our most popular design.

  • 7075-T6 Aluminum
  • Mil-Spec Anodized Receiver
  • 20″ .223|5.56 WYLDE Barrel
  • 4150 Chrome Moly Steel Phosphate Coated Spiral Barrel
  • Standard Flash Hider
  • Twist Rate: 1:8
  • 15″ CBC Arms Keymod Handguard/Rail
  • *Does not include Bolt Carrier Group & Charging Handle

Product Details: AR-15 Upper Assembly – 20″ / .223 WYLDE / 1:8 / Spiral Flute / 15″ CBC Keymod AR-15 Handguard / Rail

➲ Barrel

The barrel is one of the few components that directly affect the accuracy and weight of your build. This barrel utilizes the popular and versatile .223 Wylde chamber, which allows for the safe usage of 5.56 NATO ammunition and enhance reliability. It is corrosion resistant resulting in extended barrel life and has a phosphate finish. This is the perfect barrel for an AR  build, keeping length and weight to an absolute minimum while still offering a significant ballistic advantage.

➲ 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.

➲ Rifle Length 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.

➲ .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.

➲ 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.

➲ 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. Designed with size and weight savings in mind, it features featuring picatinny inserts at 3:00, 6:00 & 9:00 positions. 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, resulting in a durable and dependable mounting platform, providing you with strength and stability.

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 5.6 lbs
Dimensions 30.25 × 4.5 × 4.5 in
Platform

Caliber

Barrel Length

Barrel Fluting

Rail/Handguard

Twist Rate

9 reviews for AR-15 Upper Assembly – 20″ / .223 WYLDE / 1:8 / Spiral Flute / 15″ CBC Keymod AR-15 Handguard / Rail

  1. Douglas D. Gronert sr

    Quality Service People that make your company GREAT. True to your customers and service minded that’s the other product you are marketing. This upper perfect, shipping container perfect. The BCG you sell, best I have ever seen, it has a finish better than any other’s. This is my second CBC upper, and won’t be my last.

  2. Troy

    I bought this recently. Finish is reasonable. It looks like scratches on the barrel where the gas block was installed. But that barrel is a chunk of steel! Super thick at the base where it counts! About three hundred rounds through it. Shooting very nice groups close to one inch but I’m not the greatest either. I ordered mine with a Hera Arms rail. No regrets. Great barrel great rail.

  3. Rich

    Finally had the chance to take it out to the range this past week. I have it mounted on a YHM lower with a match grade trigger as well as a rifle length buttstock with a Magpul PRS. I mounted a bipod on front bottom Picatinny spot. This is a very impressive upper. Great BCG and while I’m not the best shot, I was dialed in with 1″ groups at 100 yards and ultimately about 2-3″ at 300 yards. The heavy barrel is a serious slab of steel as already mentioned and is a real plus.

    My only gripe is that the rail “walks.” By that I mean after about a 100 rounds I noted the rail had a gap between the upper receiver and the back of the rail. It was flush when I started. The only thing I can figure is the rail screws aren’t tight enough and the recoil mixed with the bipod staying put more or less acted to pull the rail forward. I’ll get a hold of customer service to make sure I torque it right, but I think that’s all it needs. Certainly not a deal breaker in my book, but enough to earn 4 instead of 5 stars.

  4. Mike Brummett

    Received my order yesterday and let me just say that this upper is absolutely GORGEOUS!!!!! It came packaged well and no blemishes at all. I was extremely surprised with the quality and the keymaod rail awesome and super slim. Perfect fit to my Spike’s lower. Thanks CBC!!!!!!

  5. Mike

    Solid construction, everything looks like great quality BUT!!!!!!!! They do NOT have 1:8 twist as advertised, they ONLY have 1:9. I was disappointed when I got it and contacted them and found out it was either stay with 1:9 or have no rifle. I was really hoping for 1:8(why else would you want a 20″). So I think it’s a great product, but there’s no point in having a 20″ with the 1:9.

  6. Jim B

    CBC had an overstock sale on this upper. I ordered it at the beginning of the week and I received it today. CBC is an awesome company to deal with. Their customer service is better than any other company I have ever had dealings with. Everyone I have spoken to has been friendly, professional and helpful. This is the forth CBC upper I have purchased. Due to the quality of the products and their people I won’t buy from anyone else. It’s also a very big plus they are Vets. Thank you for your service.

  7. Braden Doty

    This upper is solid! After dialing it in I’m getting 1″ groups at 100 yards and putting shots right on top of each other at 50 yards. Good solid construction and a beefy barrel. I’ll be using this for coyotes and competition…

  8. Brad

    I couldn’t find any issues with this upper. I have shot groups less than an inch at 100yards with hand loads. I will buy another CBC upper in the future. Thanks:thumbsup:

  9. Mac

    Bought this upper on a whim for use on coyotes. Read the reviews and placed the order. Ordered a nickle boron bolt group from AIM to go with it. Upper showed up in 2 weeks and after running a Bore Snake thru the barrel with a liberal coat of oil on everything took it to the range on a cold December day. Ran a 20 rd mag thru it for a short break-in then shot some paper. Surprisingly afer a sight in of my Leupold 3×9 it shot five 5 shot groups less than 1″ and the last one was 5/8″. Im happy with it and would buy another if CBC were to expand into making .224 Valkyrie uppers.

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