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. 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. 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.

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AEK-919K Kashtan, American-180, Beretta M12, Beretta Model 38, ETVS submachine gun, Experimental Model 2 submachine gun, F1 submachine gun, FMK-3 submachine gun, Heckler & Koch MP5K, HK53, Interdynamic MP-9, JS 9 mm, Kucher Model K1, M2 Hyde, M3 submachine gun, MAS-38, MAT-49, MP.28,II, MPi 69, New Nambu M66, OTs-02 Kiparis, Pistol Mitralieră model 1996 RATMIL, PP-19 Bizon, PP-91 KEDR, PPD-40, PPS submachine gun, Socimi Type 821, Spectre M4, SR-2 Veresk, Star Model Z84, Star Si35, Steyr MPi 69, Suomi KP/-31, Type 79 submachine gun, Type 85 submachine gun, TZ-45, Uzi, WG66, ZK-383, 

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Frameless

Kulsprutepistol P.M.9 02

Kulsprutepistol P.M.9 01

Kulsprutepistol P.M.9 Stångmagasin 01

Kulsprutepistol P.M.9 Stångmagasin 02

MGD-SMG-patent

Type	Subtype	Date	Description	Notes	Source
commons	image		Kulsprutepistol P.M.9 02		Commons
commons	image		Kulsprutepistol P.M.9 01		Commons
commons	image		Kulsprutepistol P.M.9 Stångmagasin 01		Commons
commons	image		Kulsprutepistol P.M.9 Stångmagasin 02		Commons
commons	image		MGD-SMG-patent		Commons