The Winchester Model 1866 was a revolutionary design when it was first produced. It might not have been the first leaver action rifle, but it did give rise to the popularity of their design. At the time of the Model 1866’s introduction, single shot muzzle-loading rifles reigned supreme, and repeating rifles that used metallic cartridges were still considered a novelty. The Model 1866’s ability to fire over and over again without reloading gave it’s user a massive amount of firepower and a considerable advantage over those still using muzzle loading designs. They quickly gained a reputation for being reliable and accurate, and their bronze frame gave the rifle a yellow color, hence their nickname “The Yellow Boy.”Uberti’s line of 1866 Yellowboy rifles are authentic reproductions of the originals down to the last detail including the brass frame, loading port and case hardened leaver. Uberti 1866 Yellowboy .45 Colt 24.25" Bbl Brass Frame & Buttplate C/H Lever Sporting Rifle 342290