Compact HK45 with threaded barrel and suppressor-height sights. Sub-compact dimensions in a suppressor-ready .45 ACP format. Type: Pistol Action: Semi-Auto Caliber: .45 ACP Capacity: 10 Year introduced: 2009, Germany Weight: 28.9 oz Overall length: 7.2" Status: Active Military use: Yes Intended use: Tactical, Suppressed, Special Operations