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 2 Model". In 1880, Smith & Wesson offered the Model 2 in a double-action format, whereby a single squeeze of the trigger both cocked the hammer and fired the revolver. These revolvers are easily recognizable by their fully enclosed trigger guard. The first such revolvers made by Smith & Wesson. These revolvers were available in nickel or blued finishes and a smaller version was offered in .32 Smith & Wesson. The Model 2 in .32 S&W was made in 5 iterations. The initial version was a batch of 30 revolvers that were the first of such made by Smith & Wesson