Nighthawk Custom T4 in 10mm — a tactical-purpose 1911 with Picatinny rail, tritium night sights, and full Nighthawk fitment and finishing in the 10mm cartridge. Type: Pistol Action: Single-Action Caliber: 10mm Auto Capacity: 8 Year introduced: 2014, United States Weight: 41 oz Overall length: 8.5" Status: Active Intended use: Home Defense, Duty, Hunting