"1","","From 1857 to 1864","Approximately 1500 made in .36, .40, .44, .50 & .56 caliber.","Colt","Model 1855 Half Stock Sporting Rifle","" "1500","","From 1857 to 1864","Approximately 1500 made in .36, .40, .44, .50 & .56 caliber.","Colt","Model 1855 Half Stock Sporting Rifle",""