This is Cimarron's version of George Armstrong Custer's 7th Cavalry Model revolver. The Custer 7th Cavalry Model is a very accurate copy of the first U.S. Gov't models of 1873. These early firearms were inspected for ordinance by civilian inspector Orville W. Ainsworth, shipped to Ft. Lincoln and used by troops of the 7th Cavalry under the command of General George Armstrong Custer. Each authentic firearm is properly marked with "Ainsworth'' inspection markings, an OWA Cartouche, two-line patent dates and "U.S." on the frame. Stamped into the butt of the backstrap is the company and 7th Cavalry markings. - CALIBER .45 COLT - LONG COLT - FRAME Old Model Case-Hardened with 7th Cavalry Markings - GRIPS One-Piece Walnut with OWA Cartouche