This AR-9 upper assembly known as the “Wolverine” features a caliber of 9mm and is a dedicated 9mm Parabellum, Lock Back Upper Receiver.
- CBC “Afterburner” Compensator
- 4150 Chrome Moly Nitride Coated Barrel
- Twist 1:10
- 7.5″ 9mm Barrel
- 7″ Slim M-LOK with Detachable Rails
Please Note: An “AR-15 Pistol” has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law. Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.