Colt Single Action Army was discontinued in 1999, as was the 4.75" variant, which was reintroduced in 2002. Manufacturing of the Colt Cowboy was discontinued in 2003. Colt engraved less than one percent of its first generation production of the Single Action Army revolver, which makes these engraved models extremely rare and valuable with collectors. Engraved pieces were often ordered by or for famous people of the day, including lawmen, heads of state, and captains of industry. This tradition began with the founder, Samuel Colt, who regularly gave such examples away as a means of publicity for Colt. Colt employed a number of engravers,
Revolver gate on the original Colt designs (and on nearly all single-action revolvers since, such as the famous Colt Single Action Army) is on the right side, which was done to facilitate loading while on horseback; with the revolver held in the left hand with the reins of the horse, the cartridges can be ejected and loaded with the right hand. Because the cylinders in these types of revolvers are firmly attached at the front and rear of the frame, and the frame is typically full thickness all the way around, fixed cylinder revolvers are inherently strong designs. Accordingly, many modern