The Rock Island Armory M1911-A1 MS is a mid-size 4.25-inch Commander-length 10mm 1911, providing a more packable option compared to the full-size FS while retaining the same value-oriented pricing that defines the RIA lineup. Type: Semi-Automatic Pistol Action: Single-Action Caliber: 10mm Auto Capacity: 8 Year introduced: 2012, Philippines Weight: 35 oz Overall length: 7.75" Status: Active Intended use: concealed_carry, self_defense, sport