54 caliber flintlock version of the Lyman Great Plains Rifle. Provides maximum historical authenticity combined with the largest bore in the Great Plains line. Suitable for all primitive firearms seasons and large game hunting. Type: Rifle Action: Single-Shot Caliber: 54 Cal Capacity: 1 Year introduced: 1979, USA Weight: 128 oz Overall length: 50" Status: Active Intended use: traditional, hunting, historical