This AR9 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 and is specifically designed for 9mm use while incorporating lock-back function. 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.
This LOCK-BACK 9mm upper assembly is fitted with a 15″ M-LOK rail with generously sized cutouts to permit maximum air circulation around the barrel for faster cooling. This partial upper assembly comes with an Afterburner linear compensator that fitted ont0 1/2×36 barrel threads.
- Type: AR
- Finish Color: Black
- Caliber: 9mm
- Barrel Finish: Nitride
- Barrel Length: 16”
- Twist: 1:10
- Gas System: Carbine
- Muzzle: Afterburner Compensator
- Receiver Material: Aluminum
- Receiver: Mil-Spec, Forward Assist & Dust Cover Installed
- Rail: 15” M-Lok
Product Details: AR9 Upper Assembly – 16 Inch / 9mm / 1:10 / Lock-Back / MLOK / 160160
➲ 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.
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.
➲ Afterburner Compensator
The CBC Afterburner compensator is a muzzle device that designed to reduce flash intensity while suppressing recoil. These linear compensators are machined from quality steel and finished with an exceptionally corrosion resistant salt bath nitride for a lifetime of service. It utilizes a linear design to direct the high-pressure gas behind the bullet in a straight line away from the shooter which results in a reduction of perceived noise. Due to its six-hole design surrounding the central bore, it provides effective flash suppression that preserves the shooter’s vision in low light conditions.
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