Smith & Wesson M&P15 Smith & Wesson M&P15 The Smith & Wesson M&P15 is an AR-15 style semi-automatic rifle by gun manufacturer Smith & Wesson. Introduced in 2006, the firearm is designed for police and consumer markets. "M&P" stands for "Military & Police" and is used to pay homage to the Smith & Wesson .38 Military & Police revolver. According to the company, the .38 Military & Police, now known as the Model 10 revolver, has been in continuous production since 1899, and over six million units have been produced." The M&P15 was introduced at the 2006 SHOT Show in two varieties: the M&P15
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