- Barrel: Twist: 1/10
- Finish: Barrel Nitride Treated
- Material: Chrome Moly Steel
- Muzzle Device Thread Pitch: 1/2 X 36 TPI
- Caliber: 9 mm
- Upper Receiver: Pattern: Billet
- Finish: MILSPEC Hard Coat Anodized
- Material: 7075 T-6 Aircraft Grade Aluminum
- Handguard: 7″ Gen 2 Keymod
- Material: 6065 Aluminium
- Finish: Anodized
- *Does not include Bolt Carrier Group / Charging Handle, Non-Lock Back
- *Use with a 9mm Lower that is designed to work with Glock®-style magazines.
Product Details: AR-9 Upper Assembly – 7″ / 9mm / 1:10 / 7″ Gen 2 Keymod AR-15 Handguard / Rail / Non-Lock Back
➲ 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.
➲ Gen 2 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, ensuring this handguard can endure a lifetime of abuse.
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 nitride finish for increased strength and durability. It is chambered 9mm chamber, with a 1:10 twist rate. This is the perfect barrel for an AR9 build, keeping weight to an absolute minimum, while still offering a significant ballistic advantage.
➲ 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.
All partial AR-9 uppers are assembled with everything you need less the charging handle and bolt carrier group. CBC AR-9 uppers offer 9mm function in a versatile AR platform. Experience superior quality and exceptional performance from every upper assembly you purchase from CBC. Better yet, all of our CBC AR-9 uppers are custom built-to-order enabling us to provide you with the best prices you will find anywhere. The quality of our 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 partial AR-9 upper at CBC today and save with free shipping!