The CMMG Banshee in .45 ACP uses the Radial Delayed Blowback system to tame the larger, heavier .45 ACP projectile in carbine form. The 16-inch barrel extracts additional velocity from the cartridge, and the delayed blowback system manages the higher recoil impulse compared to 9mm. CMMG's .45 ACP Banshee accepts standard Glock 21-pattern magazines via an included adapter and is popular with .45 ACP loyalists who want an AR-format carbine. Type: Pistol Caliber Carbine Action: Semi-Automatic Caliber: .45 ACP Capacity: 26 Year introduced: 2018, USA Weight: 68 oz Overall length: 33.5" Status: Active Intended use: Home Defense, Competition, Range Use