This AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. It is built around a 16 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 15″ Keymod Rail that is styled after the popular Hera Arms design. 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 5/8×24 barrel threads if you are planning on adding a muzzle break in the future.
- Barrel: 16” 300 AAC Melonite Barrel Chrome Moly
- Twist Rate: 1:8
- Feed Ramps: M4
- BCG: Case Hardened 8620 Steel Nitride Coated, M4/AR-15 Compatible, Mil-Spec/MP Tested
- Gas Block: Steel .750 Low Profile
- Gas Tube: DGI Stainless Pistol-Length
- Muzzle Device: Steel A2 Style Flash Hider
- Rail: 15″ Hera Arms Unmarked IRS Quad Free Float Rail
- Upper Receiver: Forged Upper Receiver
- Upper Components: Mil-Spec Forward Assist, Mil-Spec Dust Cover, and Brass Deflector
Product Details: AR-15 Complete Upper Assembly – 16″ / 300AAC / 1:8 / 15″ Hera Arms Keymod Unmarked AR-15 Handguard with BCG and CHH
➲ 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.
➲ Pistol 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.
➲ 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.
➲ Bolt Carrier Group
There is nothing more crucial to the performance of your AR-15 than the bolt carrier group. Made to MIL-SPEC and finished with superior quality nitride finish that protects against corrosion and heat, our BCG won’t let you down. In order to ensure that it will run beautifully in your AR-15, each bolt carrier group under goes high pressure testing (HPT), and magnetic particle inspection (MPI). Whether you’re looking for a drop-in Mil-Spec quality replacement for your current AR or are going for a new build, this bolt carrier group provides you with the reliability and performance you expect from a first-rate product.
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. This provides not only an impressive barrel life but ensures excellent accuracy. The barrel threads are carefully threaded to the .308 standard. Optimized for stability with a 1:8 twist rate, this 300 BLK barrel can handle heavier bullets used for subsonic loads with ease.
➲ Standard MIL-SPEC Charging Handle
A central component of your AR-15, the charging handle not only assists in chambering a round but is your main tool to clear a round that won’t eject cleanly. The 7075-T6 aluminum design results in a rugged and capable charging handle for your AR-15. With lightweight aluminum construction and traditional snag-free latch design, this charging handle provides superior function and reliability.
➲ 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.
CBC AR-15 Complete Uppers offer superior quality, dependability, and performance that will satisfy the most demanding shooter. Our custom in-house manufacturing capability provide a wide selection of complete AR-15 upper assemblies in a variety of styles and lengths. Whatever you need, CBC has what you're looking for. Better yet, all CBC AR-15 complete uppers are custom built-to-order enabling us to provide you with the best prices you will find. The quality of our AR-15 complete 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 complete AR-15 upper at CBC today and save with free shipping!