A scarce rifle on today's market. Approximately 30,200 manufactured, but nearly 30,000 were sent to Russia. Produced from 1866-1870. A trapdoor-type action chambered for .42 centerfire. Standard model has 32.5" barrel; carbine 18.25". Finish blued, with walnut stock. Rifle was designed and patent held by Hiram Berdan, Commander of Civil War "Sharpshooters" Regiment. This was actually Colt's first cartridge arm. The 30,000 rifles and 25 half-stocked carbines that were sent to Russia were in Russian Cyrillic letters. Few examples made for American sales have Colt's name and Hartford address on the barrel.