Freedom Arms is a Freedom, Wyoming based firearm manufacturing company, known for producing powerful single-action revolvers. The company was founded in 1978 by Wayne Baker and Dick Casull to produce the Mini-Revolver, then later a revolver chambered in Casull's powerful .454 Casull revolver cartridge. This 5-shot revolver was the Model 83. Freedom Arms currently makes a single-shot pistol in addition to their revolvers.

The .454 Casull is a firearm cartridge, developed as a wildcat cartridge in 1958 by Dick Casull, Duane Marsh and Jack Fullmer. It was announced in November 1959 by Guns & Ammo magazine. The design is a lengthened and structurally improved .45 Colt case. The wildcat cartridge went mainstream when Freedom Arms brought a single action five-shot revolver chambered in .454 Casull to the retail firearms market in 1983. Ruger followed in 1997, chambering its Super Redhawk in this caliber. Taurus followed with the Raging Bull model in 1998 and the Taurus Raging Judge Magnum in 2010. The .45 Schofield and .45 Colt cartridges can fit into the .454's chambers, but not the other way around because of the lengthened case.