The SR1911 Night Sights variant adds Novak Lo-Mount tritium night sights to the base SR1911 platform, addressing the one criticism of the standard model's sights for low-light defensive use. Retains all other features of the base SR1911. Type: Semi-Auto Pistol Action: Single-Action Caliber: .45 ACP Capacity: 7 Year introduced: 2014, USA Weight: 39.4 oz Overall length: 8.6" Status: Active Intended use: Duty, Service