The 1911 Ultra brought SIG quality to the compact 1911 format with a 3.3-inch barrel and an aluminum alloy frame. Among the lightest and smallest .45 ACP 1911 variants in SIG's catalog. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 7 Year introduced: 2008, Germany/USA Weight: 28 oz Overall length: 7" Status: Discontinued Intended use: Carry, Concealed Carry