The rarest Smith and Wesson, The S&W 320 revolving rifle,
Like many other gun manufacturers of the day Smith and Wesson too decided to get into the revolving rifle market. Based on the S&W Model 3 revolver, the rifle had an elongated barrel with forearms and a detachable buttstock. While the Model 320 did not have chain firing problems like other revolving rifles (where multiple chambers would fire simultaneously), the S&W Model 320 suffered from the same problem as all other revolving rifle attempts. When fired hot gases from the cylinder would spray onto the users forearm, sometimes even causing burns. As a result the S&W Model 320 was not a very popular firearm, and only 977 were sold between 1879 and 1887, making it the rarest Smith and Wesson firearms ever produced.
Today Model 320’s are highly sought by collectors and can bring in up to $10,000 - $30,000 or more at auction. Cased, engraved, and/or nickel plated models can even bring in $60,000 - $90,000. Even the detachable stock alone can sell for as much as $5,000.