The Kahr P45 brings the single-stack slim format to the .45 ACP cartridge with a 3.5-inch barrel. It is slightly wider than the P9/P40 to accommodate the larger cartridge but remains exceptionally thin for a .45 ACP pistol. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 6 Year introduced: 2005, USA Weight: 18.5 oz Overall length: 6.08" Status: Active Intended use: Concealed Carry, Self Defense