Larger-bore .54 Cal flintlock variant of the Great Plains Rifle. Same 32-inch barrel and double-set triggers but heavier bore for big-game hunting applications. Type: Muzzleloader Action: Single-Shot Caliber: .54 Cal Capacity: 1 Year introduced: 1979, USA Weight: 11.75 oz Overall length: 50.5" Status: Active Intended use: Traditional Shooting/Hunting