This AR-15 upper assembly is made from the highest quality parts and is assembled in Charleston, South Carolina. The 15″ CBC M-LOK design is one of our most popular handguard/rail designs. This upper assembly is California Compliant.
Mil-Spec Anodized Receiver
Carbine Length Gas Tube Assembly
16″ .223 | 5.56 Barrel
4150 Chrome Moly Steel Nitride Coated Barrel
Twist Rate: 1:8
15″ CBC M-LOK Handguard/Rail
*Does not include Bolt Carrier Group & Charging Handle
Product Details: AR-15 Upper Assembly – 16″ / .223 | 5.56 / 1:8 / 15″ CBC M-LOK AR-15 Handguard / Rail / Compensator / California Compliant
➲ 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.
➲ .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.
➲ 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.
➲ M-LOK Handguard
Your AR-15 handguard has huge implications in terms of how much you enjoy your shooting experience. Our M-LOK 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 generously sized M-LOK cuts for air circulation.
➲ Colt Competition Style Barrel
The barrel is one of the few components that directly affect the accuracy and weight of your build. This barrel has a nitride finish for increased strength and durability. While featuring a special contour that is designed to be lighter than a conventual SOCOM barrel giving you that extra edge when shooting 3-gun competitions. This barrel offers a 1:8 twist rate, suitable for both heavy and light ammunition. It is corrosion resistant resulting in an extended barrel life that is longer than conventional chrome lining. Thus, being the perfect barrel for long distance shooting, competitions, hunting and practically any shooting application you’ll subject your AR-15 too.
➲ AR15 Muzzle
Not all muzzle devices are created the same. There aren't many muzzle brakes and compensators that 'understand' proper high-pressure gas dynamics. This AR-15 Muzzle Brake has a three chamber design that significantly reduces muzzle rise. It has 1/2x28 threads, so you can attach it to your favorite 5.56 or .223 barrel and finally finish that build you have been working on. It is made from high-quality steel and features a durable phosphate finish that will look great on any AR build.
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!