Smith & Wesson M76

The Smith & Wesson M76 submachine gun was produced by Smith & Wesson from 1967 to 1974. It is a copy of the Swedish Carl Gustav m/45 with an open bolt design and fires 9x19mm Parabellum ammunition.

Smith & Wesson M76
Class Manportable
Type Machine Guns
Manufacturer Smith & Wesson
Production Period 1967 - 1974
Origin Sweden
Country Name Origin Year
Sweden 1967
United States of America 1974
Country Name Operational Year Retirement Year
Vietnam 1955 1975 View
ManufacturerName Production From Production To Quantity
Smith & Wesson 1967 1974 View

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 had wanted Swedish-made m/45 submachine guns to use in covert operations in Southeast Asia.

Noting this, Smith & Wesson began to produce the M76 (an m/45 clone), which was ready for production in 1967; however, by that time the US Navy did not have much use for it, and the M76 was only produced in limited quantities (mainly for the police and civilian market).

In 1968, Smith & Wesson engineers, researching the possibility of a gun that could electronically fire caseless ammunition, created a prototype weapon similar to the M76, but with some alterations included so that it could fire the caseless ammunition. Visually it was identical to the standard M76, except for a structure in front of the trigger guard that served as a housing for two 12-volt batteries. Although the gun worked quite well, the ammunition proved susceptible to damage from rough handling and the elements, and the project was scrapped.

General production of the standard version ceased in 1974.

Type Submachine gun
Place of origin Sweden

United States
Service history
Wars Vietnam War
Production history
Designed 1967
Manufacturer Smith & Wesson
Produced 1967–1974
Variants MK760, M76A1
Weight Unloaded: 7.25 lbs

Loaded: 8.75 lbs
Length Stock folded: 22.5 inches

Stock extended: 30.50 inches
Barrel length 8 inches
Cartridge 9×19mm Parabellum
Action Blowback
Rate of fire 720 rounds/min
Feed system 14-, 24- or 36-round box magazine
Sights Front: protected blade, rear: fixed aperture

End notes