A foldable or folding machine gun (or FMG) is a type of
submachine gun
A submachine gun (SMG) is a magazine (firearms), magazine-fed automatic firearm, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to descri ...
designed to be folded for concealed carry and can often be disguised.
Examples of foldable machine guns include:
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ARES FMG
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FMG-9
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Hotchkiss Type Universal
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PP-90
The PP-90 is a Russian 9 mm folding submachine gun, developed by the KBP Instrument Design Bureau in Tula for use with special units of the Russian Ministry of Internal Affairs (MVD). It is designed for close quarters combat, particularly enga ...
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UC-9
The UC-9, also known as the DEB M21, is a foldable submachine gun designed by Utah Connor in the mid 1970s. Based on an Uzi 9mm and using unmodified Uzi magazines, the gun can be folded in half into a compact box design, with the initial product ...
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Submachine guns