The 1911 Nitron was SIG's core production 1911 model with the Nitron black finish, SIGLITE night sights, and an 8-round flush magazine. Represented the sweet spot of SIG's 1911 catalog in terms of features and price. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 8 Year introduced: 2005, Germany/USA Weight: 40.5 oz Overall length: 8.5" Status: Discontinued Intended use: Range, Service, Duty