Nighthawk's collaboration with sight maker Richard Heinie, the Heinie Signature is a government-length 1911 built around Heinie Straight Eight sights and the specific ergonomic preferences of the renowned sightmaker and pistolsmith. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 8 Year introduced: 2011, USA Weight: 41 oz Overall length: 8.75" Status: Active Intended use: Competition, Home Defense, Collector