The Wilson Combat Hackathorn Special is a collaboration with legendary trainer Ken Hackathorn, featuring sights and controls developed from Hackathorns decades of training law enforcement and military personnel. Type: Semi-Auto Pistol Action: Single-Action Caliber: .45 ACP Capacity: 8 Year introduced: 2009, USA Weight: 40 oz Overall length: 8.7" Status: Active Intended use: Duty, Law Enforcement, Tactical