The CMMG Banshee in 5.7x28mm uses the Radial Delayed Blowback system with CMMG's 5.7x28mm specific bolt to handle the high-velocity FN cartridge. The 16-inch barrel produces rifle-like velocities from the small-diameter 5.7 round. Compatible with FN P90 magazines via adapter and CMMG's dedicated 40-round magazine. The combination of high velocity and low recoil creates a unique shooting experience. Type: Pistol Caliber Carbine Action: Semi-Automatic Caliber: 5.7x28mm Capacity: 40 Year introduced: 2021, USA Weight: 66 oz Overall length: 33.5" Status: Active Intended use: Competition, Home Defense, Range Use