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.
The barrel is made from the most durable material in the barrel world, 4150 Chrome Molly Steel! These barrels are NOT chromed lined because that reduces accuracy, it features Nitride Coating to increase durability and reduces wear & tear! It features a gas impingement system operating at the carbine length. Nothing is overlooked on this barrel, it is even head spaced twice from the manufacturer for reliability!
This AR-15 upper assembly is made from the highest quality parts is assembled in Charleston, South Carolina by United States Veterans. The 15″ CBC Arms Gen 2 Keymod was designed for shooters that want BUIS at 45-degree angle with no additional costs for attachments.
Barrel: 16” 7.62 Melonite Barrel Chrome Moly
Twist Rate: 1:10
Feed Ramps: M4
Gas Block: Steel .750 Low Profile
Gas Tube: DGI Stainless Carbine-Length
Muzzle Device: Steel A2 Style Flash Hider
Rail: 15″ CBC Gen ll Free Float Keymod
Upper Receiver: Forged Upper Receiver
Upper Components: Mil-Spec Forward Assist, Mil-Spec Dust Cover, and Brass Deflector
Sights: T6 6061 Grade Aluminum
Tactical 45-degree Offset Flip Up Iron Sights Front & Rear
Flip Up Posi-Lock Design to Guarantee Zero
Front Slight A2 Post With Elevation Adjustment
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.
*Does Not Include Bolt Carrier Group & Charging Handle*
Product Details: AR-15 Upper Assembly – 16″ / 7.62×39 / 1:10 / Sight 230-540 / 15″ CBC Arms Gen 2 Keymod AR-15 Handguard / Rail
➲ 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.
➲ Keymod Handguard
Your AR-15 handguard has huge implications in terms of how much you enjoy your shooting experience. Our seven sided Keymod handguard is built to handle the hardest use and abuse of tactical and competitive shooting while offering more versatility than other handguards. 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. Due to the “7 sided design”, this rail has more than 200% more attachable surface area of a standard keymod rail. This AR-15 handguard is machined from 6061 aluminum, has a hard coat anodized black finish.
➲ 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.
➲ 45 Degree Offset Sights
Even if you have a high-quality optic or scope on your rifle, it is important to have a set of back up iron sights mounted to your receiver and rail just in case your optic fails. This 45-degree flip-up rear and front sights are designed to stay out of the way when you don’t need it and quickly deploy when you do. It is precision machined from aluminum and features a matte black finish so you can be sure it won’t break or rust in harsh conditions. This backup sight is angled so you can quickly transition between your optic and iron sights depending on the situation. This style of canted iron sight is popular with 3 gun competition shooters who have to quickly change between long-range and close targets. It is quickly deployable via a positive lock button that, when depressed, locks the sight tower to prevent it from collapsing during use and locks in the folded position to keep it out of the way. The rear aperture is adjustable for windage via the tool-less adjustment knob and features two aperture types depending on your preference. The low-profile sight base attaches to 1913 picatinny rails. Ensure your AR-15 or AR-10 will keep you in the fight with these back-up rear and front iron sights.
The barrel is one of the few components that directly affect the accuracy and weight of your build. Designed for corrosion resistance, this barrel will not let you down. This barrel is machined from 4150 Chrome Moly Steel, heat treated to RC 28-32 hardness, and properly stress relieved. This barrel has a phosphate finish for increased strength and durability. It is chambered 7.62×39 chamber, with a 1:10 twist rate. This is the perfect barrel for an AR15 build, keeping weight to an absolute minimum, while still offering a significant ballistic advantage.
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!