Hello bajtársak and fellow forumdwellers,
Today I present to you a weapon that has been circulating the forum for a few years now, the SIG Maschinenkarabiner Modell 1930 or MK1930 as I will refer to it from now on.
Even if you are not familiar with this gun, you certainly have heard of its successors, the SIG MKMO and the Király 39M.
The MK1930 is the first genuinely SIG designed submachine gun by the combined effort of Jakob Gaetzi and Gotthard End. Unlike later guns the MK1930 was only offered in 9mm parabellum (9x19) which was commercially the most sought after submachine gun calibre of its time. The design already features the unique 40 rounds foldable magazine, but here the magazine is folded towards the trigger rather than the barrel as on the Király or MKMO.
Since Pál Király did not work for SIG yet, the fruits of his unparalleled talents, the Király delayed blowback action was also not a feature yet and the MK1930 operates on a simple blowback action. The MK1930 does not have a fire selector and is only capable of full-auto fire, naturally like almost all submachine guns, it operates with an open bolt.

Statistics
Caliber: 9mm Parabellum
Magazine capacity: 40 rounds
Rate of fire: unknown, presumably similar to the SIG MKMO (850 rpm)
Initial muzzle velocity: 415 m/s (estimated)
Weight unloaded: 4650g
Weight fully loaded: 5450g (estimated)
Overall length: 950mm
Barrel length: 250mm
Lowest sight setting: 100m
Highest sight setting: 1000m
Safety: Lever to the left of the action group
There are no production figures available, only a few dozen of Mk1930s may have been produced which is why they are so incredibly rare nowadays.
The only nation to adopt this gun was Japan’s inner Mongolian puppetstate, Mengjiang.
How this submachine gun ended up with the “elite” body guards remains a mystery, neither the MK1930 or its later variants were ever used by any other faction in China. Its calibre -9mm parabellum- is also most unusual since China at time was dominated by the 7.63x25 Mauser, preferred for its high muzzle velocity.
My personal theory is that these guns were purchased by a Mongolian prince between 1931-32 to be used by his body guards (MK1930 is a very elegant gun after all) and not necessarily for direct combat purposes.

In-game
Since Mengjiang was the only user, the submachine gun should be added for Japan.
Adding Mengjiang itself as a subfaction is out of the question due to its heavily controversial and political nature.
The SIG MK1930 could be Japan’s first SMG in 9mm parabellum, so it would unique for Japan, though it would not be a groundbreaking new gun since its stats are to be very similar to that of the Király 39M but with less damage (7.4 or 7.5 damage) and bit more dispersion with the upside of having a high (850 rpm) fire rate with incredibly low recoil.
Sources:
Vickers Guide – SIG Sauer Vol.1

Bewaffnung und Ausrüstung
Bewaffnung und Ausrüstung der Schweizer Armee seit 1817, Band 13, Automatenwaffen, Maschinenpistolen Selbstladegewehre (primary source and name was too long to fit it)

- Yes
- No
- Tech Tree weapon
- Premium/Event squad
- Standalone event weapon
- Battle Pass weapon













