These "Fifth Model" Burnside carbines represent the completion of the evolution of General Ambrose Burnside's ingenious carbine design. Unfortunately for Burnside, he profited little, if at all, from his well-known design because he sold his shares before the company received sizable government contracts. The outbreak of the Civil War led to the purchase of over 50,000 Burnside carbines. They were the third most purchased breech loading carbine during the war, after only the Sharps and the Spencer. This example has the standard markings and features. Matching serial numbers on the frame and breech block. Two crisp boxed script inspection cartouches stamped on the left wrist of the stock including "R.K.W" and "EPR", and "N.S.P" inspection initials on bottom of the forearm and ahead of the buttplate tang.