Cimarron Firearms imported Uberti cowboy action version of the 1860 Richards-Mason Conversion was the most popular cartridge revolver made by Colt. Awarded: 2003 True West Magazine "Best Cartridge Conversion Revolver Reproduction". Historically, as percussion parts ran short in 1860, the 1851 Richards-Mason Conversion revolver was changed from the earlier percussion model profile with octagon barrel to the 1871-72 Open Topo sleek profile with a round barrel, and was renamed the 1860 Richards-Mason Conversion.
Specs-Case hardened frame, 1 piece walnut stock, standard blued finish, round 5 1/2" barrel.