This carbine is one of 27,000 Sharps New Model carbines converted for .50-70 rimfire ammunition in the late 1860s with a three groove re-lined barrel. Many had previously seen hard use in the Civil War. They were refinished and had parts replaced as needed during the conversion process. This example appears to have seen little if any use after the conversion and has been excellent cared for. It has the standard features and markings, including an "DFC" ribbon cartouche on the left side of the smooth walnut stock. Many of these converted carbines were used by the downsized U.S. cavalry on the Great Plains until Springfield trapdoor carbines became widely available. Many were also sold by the government to Native Americans, but they were also turned against the U.S. cavalry at the Battle of Little Bighorn and elsewhere.