Originally manufactured by Smith & Wesson as the Model 76, which in turn was designed to fill the same niche as the Gustaf M/45 "Swedish K" SMG, the MK Arms MK760 is a lightweight and agile weapon for close quarters fighting, and in the initial S&W incarnation was a go-to weapon for the American special warfare community in Vietnam. Brought to market in 1983, the passage of the 1986 Firearm Owners Protection Act killed both the 760 and MK Arms in general, resulting in a very limited window of transferable production. Protected post front and notch rear sights, with the MK Arms markings on the magazine well, a combination barrel nut and ventilated heat shield, ambidextrous "SAFE"/"SEMI"/"FULL" selector, and a checkered pistol grip. The buttstock on this model is patterned after the M/45, configured to fold over to the right instead of the traditional left, with a thicker rubber pad on the comb instead of the traditional thin plastic wrapping around most of the surface. Eight extra magazines are included, some appearing to be modified Egyptian SMG magazines (Egypt did have licensed copies of the original Carl Gustaf design), along with a number of spare parts and an extra left-folding buttstock.

Excellent, with 90% of the original matte gray finish, showing some bright wear on the high edges, areas of rough texture, and scattered handling marks. The grip shows some mild wear, while the stock retains 80% of the original black finish, showing mild wear and a few areas of brown patina. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.