The CMMG Guard in 10mm Auto is a 16.1-inch pistol caliber carbine delivering the most powerful pistol caliber commonly chambered in AR-format PCCs. With a 16-inch barrel, 10mm Auto generates approximately 700 ft-lbs of energy, outperforming .357 Magnum from a revolver. Type: Rifle Action: Semi-Automatic Caliber: 10mm Auto Capacity: 30 Year introduced: 2019, USA Weight: 76 oz Overall length: 32.5" Status: Active Intended use: Hunting, Home Defense, Competition PCC