The gun is a Springfield Model 1866 rifle that is rumored to have once belonged to the famous frontier scout, Kit Carson.
It employed a robust version of the "trapdoor" breechblock design originated by Erskine S. Allin, Master Armorer of the Springfield Armory.
model | Springfield | Model (person) | Springfield, Illinois | America's Next Top Model | Springfield, Massachusetts | Ford Model T | Springfield, Missouri | Dusty Springfield | New Model Army | model (person) | Springfield Armory | Springfield, Ohio | Model United Nations | Springfield Township | Springfield Township, Union County, New Jersey | IPTC Information Interchange Model | Rick Springfield | Springfield, Wisconsin | Lockheed Model 10 Electra | Standard Model | Springfield, Virginia | Springfield Indians | Springfield, Essex | Model (profession) | Elite Model Management | Buffalo Springfield | Springfield, Vermont | RGB color model | Model Engineering College |