CMMG's Banshee in 5.7x28mm uses their Radial Delayed Blowback system to manage the cartridge's higher pressure. Accepts standard FN PS90 magazines for 40-round capacity. Type: Pistol Action: Semi-Automatic Caliber: 5.7x28mm Capacity: 40 Year introduced: 2019, USA Weight: 62.4 oz Overall length: 16.1" Status: Active Intended use: Home Defense, Range, Suppressor Host