Smith & Wesson Model 320 inches. "The History of Smith & Wesson Firearms" By Dean K. Boorman Smith & Wesson Model 320 The Smith & Wesson Model 320 was a revolving rifle produced by Smith & Wesson in the late 19th century. The Smith & Wesson Model 320 is the rarest Smith & Wesson in existence and highly prized by collectors. The Smith & Wesson Model 320 revolving rifle was based heavily on the design of the Smith & Wesson Model 3 pistol. 977 revolving rifles were manufactured between 1879 and 1887. They were serial numbered 1 to 977, with 840 being sold in the
Smith & Wesson debuted in two varieties: the M&P15 and the M&P15T. The two are basically the same rifle, chambered in 5.56 NATO, with the T model featuring folding sights and a four-sided accessories rail. These rifles were first produced by Stag Arms but marketed under the Smith & Wesson name. Currently Smith & Wesson makes the lower receiver in-house while the barrel is supplied by Thompson/Center, a S&W company. In May 2008, Smith & Wesson introduced its first AR-variant rifle in a caliber other than 5.56 NATO. The M&P15R is a standard AR-15 rifle chambered for the 5.45×39mm cartridge. In 2009, it