The Mk9 is CMMG's COLT SMG pattern Mk9 lower-based 9mm carbine, predating the Banshee line, using the older Colt 9mm SMG magazine interface before CMMG transitioned to the Glock-mag Banshee. Type: Rifle Action: Semi-Automatic Caliber: 9mm Capacity: 32 Year introduced: 2016, USA Weight: 80 oz Overall length: 34" Status: Discontinued Intended use: Competition, Home Defense, Range