The CMMG Banshee Upper in 5.7x28mm is designed for shooters prioritizing personal defense with its excellent performance at close ranges. Its 5-inch barrel and 1:9 twist rate ensure precise and flat shooting complemented by low recoil for enhanced control. This upper features M-LOK free-float handguards finished in durable Armor Black providing both style and function. The black armor Cerakote receiver finish adds an extra layer of protection and aesthetic appeal. Compatible with CMMG Mk57 lowers or standard AR15 Mk4 lowers using 5.7 AR Conversion Mags this upper is a versatile addition to any setup.