CMMG Resolve Mk4 AR-15 platform in 6mm ARC with 16-inch barrel, a direct-impingement complement to the Dissent using the same chassis and furniture. Type: Rifle Action: Semi-Automatic Caliber: 6mm ARC Capacity: 10 Year introduced: 2022, USA Weight: 96 oz Overall length: 32" Status: Active Intended use: Hunting, Sporting