Cimarron has taken the well respected 1858 New Model Army/Navy and improved it for the modern shooter's needs. The 1858 New Model Army was originally made in rimfire and center fire metallic cartridges and priced for the civilian trade at $9.00. Like the 1872 Open Top, these revolvers were not converted from a percussion model but instead were manufactured to fire a cartridge. CIMARRON'S IMPROVED 1858 New Model Army (CA1000 - 8") and (CA1004 - 5 1/2") with ejector features a cartridge cylinder chambered in 45 Colt.