Polymer-frame striker-fired Ruger American Pistol chambered in 10mm Auto — the full-size version with pre-tensioned striker, interchangeable backstraps, and 4.5-inch barrel. Type: Pistol Action: Semi-Auto Caliber: 10mm Auto Capacity: 15 Year introduced: 2018, United States Weight: 30.2 oz Overall length: 7.75" Status: Active Intended use: Hunting, Home Defense, Bear Defense