The Winchester Model 1866 Yellowboy was the first true cowboy lever-action rifle and Cimarrons 1866 Yellowboy family of rifles faithfully reproduces the rifle favored by Sitting Bull and by the Turkish Army in their fight against Russia in the 1870s. This family of rifles is highly diverse in terms of the specs of the blued barrel and in the ammunition used. The 1866 Yellowboy earned their nickname from the brass frame. These rifles have an all walnut stock. Details Originally known as the Improved Henry due to its patented loading gate on the side of the frame designed by Nelson King Winchesters plant superintendant and the addition of a wood forearm the 1866 model was known as the Yellow Boy by the Native Americans because of its brass frame. The 66 model was the first true cowboy lever-action and the first that adapted well to carrying in a saddle scabbard due to its slab sided design. With over 170000 made between 1866-1898--its popularity continued long after more powerful lever guns were introduced. The 66 model was famous worldwide with guns used by the forces of Benito Juarez in Mexico the Turkish army in their fight against the Russians and in the Wild West by such notables as Sioux Medicine Man Sitting Bull the Union Pacifics chief engineer General Grenville Dodge and desperado Bill Doolin. - Cimarron offers several 1866 Yellowboys such as the 24-inch barreled Sporting Rifle a 20-inch Short Rifle (both of these models sport octagon barrels) round barreled carbines including the 19-inch saddle ring carbine a brass tack-decorated 19-inch Indian carbine and a 16-inch Trapper model. Calibers available include .45 Colt .44-40 .44 Special .38 Special .38-40 .32-20 and .22 Long Rifle and with finishes like the Standard Blue Charcoal Blue or Original Finish depending on which model you select. One of Cimarrons true handsome Old West classics - Caliber .45 COLT - Style Short Rifle - Capacity 10 Rnds. - Frame Brass - Finish Standard Blue - StockForearm Walnut - Weight 7.56 Lbs.