Smith & Wesson M76 Smith & Wesson M76 The Smith & Wesson M76 submachine gun was produced by Smith & Wesson from 1967 to 1974. It is an adaptation of the Swedish Carl Gustav m/45 with an open bolt design and fires 9x19mm Parabellum ammunition. In 1966, the Swedish government blocked the sale of firearms to the United States because it opposed the Vietnam War. This created a problem for the Navy SEAL Teams which were using Swedish-made m/45 submachine guns in covert operations in Southeast Asia. Noting this, Smith & Wesson began to produce the M76 (an m/45 clone), which was ready for
Smith & Wesson SD built, the unique feature was a Titanium slide. The SW40Ti was never put into production. At this time Smith & Wesson retired the 4.5 inch barrel and switched all Sigmas to the 4.0 inch barrel. Sigmas from this era onward are considered "2nd generation" Sigmas. Shortly after the introduction of the VE series, Smith & Wesson further improved it by adding an accessory rail but did not change the model number to reflect this update. Sometime after 1999 Smith & Wesson introduced the SW40P and SW9P. These models were identical to the SW40VE and SW9VE but added porting to the