Manufactured from 1879 to 1887, the Model 320 revolving rifle is one of the rarest Smith & Wesson firearms produced with a total production of 977. These firearms were serial numbered from 1 to 977 and out of the 977, manufactured, 514 had the 18 inch barrel. This Model 320 was manufactured using the frame, cylinder and basic action of the New Model No. 3 revolver with some minor differences in the hammer and trigger, with the barrel being made of two pieces. A slot is cut into the butt and a hole drilled in the back strap to accommodate the shoulder stock. The rifle features an 18 inch barrel with a blade front sight and two leaf folding rear sight. The top of the rib is marked with the two line address/patent dates. The matching serial number appears on the butt, cylinder and barrel latch. Blue finish with casehardened hammer and trigger guard. The barrel is fitted with a checkered hard rubber red mottled forearm with the S&W monogram on the underside. The grips are matching with S&W monograms in a circle at the tops. The stock is smooth walnut with blue finished attaching iron and a checkered black hard rubber buttplate with S&W monogram.