The American Colonial Gunsmiths Pennsylvania Rifle .45 Flintlock is a usa-made flintlock rifle chambered in .45 Flintlock, introduced in 1740. Primary use: collector. Type: Rifle Action: Flintlock Caliber: .45 Flintlock Capacity: 1 Year introduced: 1740, USA Weight: 104 oz Overall length: 43.5" Status: Discontinued Intended use: collector