Smith & Wesson increased scrutiny due to the frequent use of its firearms in mass shootings such as the 2018 Stoneman Douglas High School shooting, in which 19-year-old Nikolas Jacob Cruz used a Smith & Wesson AR-15 style rifle, the semi-automatic M&P15. The same weapon was used in the 2015 San Bernardino attack and the 2012 Aurora shooting. Smith & Wesson has produced revolvers over the years in several standard frame sizes. "M" refers to the small early Ladysmith frame, "I" to the small .32 frame, "J" to the small .38 frame, "K" to the medium .38 frame, "L" to medium large, and
Smith & Wesson Model 645 4506 had a rounded trigger guard profile, which replaced the earlier squared profile inherited from the 645. The 4506 was produced from 1988-2001. The S&W 645 was used in Miami Vice by the character Vice Detective Sonny Crockett in seasons 3 and 4 of the TV series. Smith & Wesson Model 645 The Smith & Wesson 645 and Smith & Wesson 745 are second-generation semi-automatic pistols which predates Smith & Wesson's 4500 series of handguns. The S&W 645/745 is chambered for the .45 ACP cartridge. The S&W 645 is constructed almost entirely from stainless steel and is thus extremely resistant