This AR-15 upper assembly is made from the highest quality parts and features the CBC Arms Generation 3 handguard/rail that is perfect for 3 gunners. The 15″ M-LOK handguard/rail features a full-length Picatinny rail at the 12:00 position.
- 7075-T6 Aluminum
- Mil-Spec Anodized Receiver
- Pistol Length Gas Tube Assembly
- 16″ 300 AAC Blackout Barrel
- 4150 Chrome Moly Steel Nitride Coated Barrel
- Standard A2 Flash Hider
- Twist Rate: 1:8
- 15″ M-LOK Handguard/Rail
- *Does Not Include Bolt Carrier Group & Charging Handle*
Product Details: AR-15 Upper Assembly – 16″ / 300 AAC / 1:8 / 15″ CBC Arms Gen 3 M-Lok AR-15 Handguard / Rail
➲ CBC M-LOK Handguard
New for 2020, these AR15 handguards are built to provide rugged, reliable performance. Designed with the advanced shooter in mind, these AR handguards are both sleek and ergonomic in the hand and that translates into faster on-target performance and ease of use. These AR handguards provide M-LOK slots for mounting attachments and feature robust steel mounting hardware to ensure an easy rock-solid installation.
➲ Upper Receiver
The foundation of all good ARs 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 phosphate finish, this .750 low-profile 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 pistol-length tube is constructed from corrosion resistant stainless steel ensuring a lifetime of service.
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.
➲ 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 light 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.
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!
Having an itch to build my own AR I chose the CBC to support our Vets and the ‘Made in USA’ concept. I was extremely satisfied with the fit, quality of workmanship and function of this upper. After reading horror stories about other affordable uppers from other companies, I was a little apprehensive of what kind of quality I could afford. I have NO issues with this upper. It went right together on my Anderson lower. No tweeking needed. Fired straight. No function issues at all. The finish was perfect. I WILL buy from CBC again.
Dan S –
Took it out with a new batch of reloads and rang the metal gongs immediately. Super accurate and worked flawlessly. Keep up the great work!
2nd upper already ordered.
Evan Bellamy –
This was my first upper from CBC. Without a doubt, it didn’t dissapoint in the slightest!! Accuracy, on point!! Supers and Subs….no problem!!! Function, feeding, and finish….damn good!! I’d say this upper can run with the best of them and for a hell of alot cheaper!! Spot on CBC….this upper is amazing!!