The American Colonial Gunsmiths Kentucky Long Rifle .50 Flintlock is a usa-made flintlock rifle chambered in .50 Flintlock, introduced in 1750. Primary use: collector. Type: Rifle Action: Flintlock Caliber: .50 Flintlock Capacity: 1 Year introduced: 1750, USA Weight: 104 oz Overall length: 43.5" Status: Discontinued Intended use: collector