The Defender is Colt's Officer-size 1911 variant in 9mm with an aluminum frame and a feed ramp designed for hollowpoint reliability. Single-action with thumb safety in a 3-inch package. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 8 Year introduced: 1998, USA Weight: 22.5 oz Overall length: 6.75" Status: Active Intended use: Concealed Carry, Personal Defense