The Nighthawk Custom Bob Marvel model is a collaboration with legendary 1911 builder Bob Marvel, combining Nighthawk's production capabilities with Marvel's renowned competition trigger and barrel fitting. Type: Semi-Auto Pistol Action: Single-Action Caliber: .45 ACP Capacity: 8 Year introduced: 2012, USA Weight: 40 oz Overall length: 8.7" Status: Active Intended use: Competition, Target