Smith & Wesson agreement, Walther produced the frames, and Smith & Wesson produced the slide and barrel. The pistol has several cosmetic differences from the original Walther design and strongly resembles a hybrid between the P99 and the Sigma series. In 2005, Smith & Wesson debuted a new polymer-frame pistol intended for the law enforcement market. Dubbed the M&P (for Military and Police), its name was meant to evoke S&W's history as the firearm of choice for law enforcement agencies through its previous lineup of M&P revolvers. The M&P is a completely new design with no parts interchangeable with any other pistol including
Smith & Wesson Model 586 Other manufacturers have used transfer bar system in their revolvers. Many Smith and Wesson purists felt betrayed with what they feel is an unwarranted change. The 586 was discontinued in 1991. After a 13-year absence, Smith & Wesson reintroduced the 586 in 2012 with the aforementioned safety modifications. It is currently produced with 4-in. and 6-in. barrel lengths as part of its Classic line of revolvers. The 586-8 features a redesigned and improved yoke. In 1987, seven years after the release of the Model 586, there were reports of cylinder binding with some types of standard .357 Magnum ammunition for