The Cimarron Firearms Model 1872 Open Top is a usa-made single-action rifle chambered in 44-40 Winchester, introduced in 1990. Primary use: Collecting, Historical Recreation. Type: Rifle Action: Single-Action Caliber: 44-40 Winchester Capacity: 6 Year introduced: 1990, USA Weight: 80 oz Overall length: 43" Status: Active Intended use: Collecting, Historical Recreation