The Springfield Armory MC Operator is a double-stack mid-size 1911 in 9mm with a 4-inch bull barrel. Built on a compact frame with 14-round magazines, it brings high-capacity 9mm 1911 performance to a carry-optimized package. Type: Semi-Auto Pistol Action: Single-Action Caliber: 9mm Capacity: 14 Year introduced: 2019, USA Weight: 38 oz Overall length: 7.5" Status: Active Intended use: Concealed Carry, Home Defense, Competition