The CMMG Banshee 300 MK9 is the 8-inch barrel version of CMMG's 9mm AR-pistol line. It uses the proprietary Radial Delayed Blowback operating system to reduce felt recoil compared to straight blowback designs, and accepts Glock 9mm magazines. Type: Pistol Action: Radial Delayed Blowback Caliber: 9mm Capacity: 33 Year introduced: 2017, USA Weight: 5.5 oz Overall length: 21" Status: Active Intended use: Range, Home Defense, Competition