Carry-configuration SIG 1911 Nightmare — Commander-length slide and frame, Nitron finish, G10 grips. The concealed carry member of the Nightmare 1911 family. Type: Pistol Action: Single-Action Caliber: .45 ACP Capacity: 8 Year introduced: 2012, USA Weight: 35 oz Overall length: 7.3" Status: Discontinued Intended use: Concealed Carry, Personal Defense