Manufactured from 1879 to 1887, the Model 320 revolving rifle is one of the rarest Smith & Wesson firearms manufactured, with total production of only 977. These firearms were serialized from 1 to 977. The Model 320 was manufactured in three barrel lengths of 16, 18, and 20 inches with twenty being the rarest length. Only 224 were manufactured by Smith & Wesson with a twenty inch barrel . Included buttstock is nickel plated.

Fair with traces of original finish in protected areas, pitting, rear sight dovetail is filled with a block. Grips are very good with softened checkering. Replacement mainspring does not properly lock hammer to the rear. Stock is fine as refinished.