The Kahr Arms P45 .45 ACP is a usa-made striker-fired pistol chambered in .45 ACP, introduced in 2005. Primary use: concealed carry, self-defense. Type: Pistol Action: Striker-Fired Caliber: .45 ACP Capacity: 6 Year introduced: 2005, USA Weight: 18 oz Overall length: 6.5" Status: Active Intended use: concealed carry, self-defense