CMMG Banshee Upper Group 9mm 5" Black - 99B17FDAB

This is a 9mm upper receiver group designed for AR-15/M4 platforms, featuring CMMG's radial delayed blowback (RDB) design for reliable operation. Compatible with standard AR-15 lowers and multiple magazine platforms including Colt, Glock-pattern, and Sig P320 magazines. The compact 5-inch barrel configuration makes it ideal for short-range shooting and pistol-caliber AR builds.