The Kahr PM45 is an ultra-compact polymer-frame .45 ACP, the smallest Kahr chambered for .45 at under 6 inches overall length. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 5 Year introduced: 2007, USA Weight: 17.3 oz Overall length: 5.79" Status: Active Intended use: Concealed Carry, Pocket .45