The program’s original Mare’s Leg was created by cutting down a Winchester Model 1892 rifle to a size that could be worn in a leg holster and used with one hand. The barrel was shortened, and ...

The Mare’s Leg made its first TV appearance–not in "Wanted Dead or Alive"–but in another 1958 TV western series called "Trackdown," starring Robert Culp as Texas Ranger Hoby Gillman.