The Knight KP1 uses a novel piston-based primer ignition system that channels 209-primer hot gases directly through a stainless steel piston into the powder charge. The 24-inch barrel and conventional stock made it an accessible mid-range inline with a unique ignition advantage in wet conditions. Type: Rifle Action: Single Shot Caliber: .50 Cal Capacity: 1 Year introduced: 2007, USA Weight: 108 oz Overall length: 40.5" Status: Discontinued Intended use: hunting, muzzleloader