Colt is a United States firearms manufacturer, founded in 1855. Colt is best known for the engineering, production, and marketing of firearms over the latter half of the 19th and the 20th century. Colt's earliest designs played a major role in the popularization of the revolver and in the shift away from earlier single-shot pistols. Many revolver models are available with customizable grip and Big Butt options. Hogue offers grips for Colt Revolvers made out of Rubber and Hardwood. For the Colt Single Action, grips are available in Cowboy Action Wood, Cowboy Action Polymer and Scrimshaw Grips.