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. CBC upper receivers offer best-in-class quality while providing you years of dependable service. The foundation of all good ARs is built upon a dependable upper receiver. This is the perfect barrel for an AR9 build, keeping weight to an absolute minimum, while still offering a significant ballistic advantage. It is chambered 9mm chamber, with a 1:10 twist rate. This barrel has a nitride finish for increased strength and durability. This barrel is machined from 4150 Chrome Moly Steel, heat treated to RC 28-32 hardness, and properly stress relieved. Designed for corrosion resistance, this barrel will not let you down. The barrel is one of the few components that directly affect the accuracy and weight of your build.

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. It provides effective flash suppression that preserves the shooter’s night vision by disrupting the muzzle flash when firing in low light conditions. This A2 Flash Hider is machined from quality steel and finished with an exceptionally corrosion resistant salt bath nitride for a lifetime of service. The muzzle device is designed to perform a specific task, like suppress flash intensity or reduce felt recoil. These AR handguards provide Keymod slots for mounting attachments and feature robust steel mounting hardware to ensure an easy rock-solid installation. Designed with the advanced shooter in mind, these handguards are both sleek and ergonomic in the hand and that translates into faster on-target performance and ease of use. New for 2020, these AR-15 handguards are built to provide rugged, reliable performance. Product Details: AR-9 Blemished Upper Assembly – 16 Inch / 9mm / 1:10 / 15″ Keymod Handguard / B160044 ➲ CBC Keymod Handguard

9mm ar upper 16