MGD PM-9

The MGD PM-9 was a French open bolt submachine gun, designed in the late 1940s or early 1950s by Louis Debuit and manufactured in small numbers by French firm Merlin and Gerin in the 1950s.[1] The PM9 was an unusual design in three different ways: it employed off-axis delayed blowback, it had a clock-style spiral mainspring similar to that of the Lewis gun, rather than the cylindrically-coiled spring used in the vast majority of self-loading firearms and, most unconventionally of all, used a rotating flywheel as a delaying mass in conjunction with the bolt.[2] It was furnished with a folding magazine, and some also had folding buttstocks, and this together with its original operating mechanism results in a highly compact weapon, but there is no known record of it being purchased or deployed by any military or police force.This article relating to submachine guns is a stub.You can help Wikipedia by expanding it.
Submachine gunBarrelCartridge9 mm Parabellum7.65 mm LongueActionDelayed blowbackRate of fireIron sightsopen boltLewis gunflywheelBarnitzke machine gunHotchkiss Type UniversalKRISS VectorList of submachine gunsBenelli B76Cristóbal CarbineDanuvia 43MDlugovFN Five-sevenFNAB-43GaraninMAC-58Sterling 7.62ST Kinetics CPWTKB-517AVB-7.62Calico M960CEAM Modèle 1950CETME AmeliCETME rifleCETME Model LHK G41HK MP5HK PSG1HK MSG90HK SR9HK UCPHK SL6HK SL7PTR 91FSIG 510SIG MG 710SRM Arms Model 1216StG 45(M)Arsenal P-M02Grossfuss SturmgewehrHeckler & Koch P7Steyr GBVolkssturmgewehr 1-5Walther CCPM50 ReisingRemington Model 51Remington Model 53Remington R51SIG MKMOCMMG MkGSchwarzlose machine gunModel 32 semi-automatic rifleJatimaticsubmachine guns