SIG MP 1918 submachine gun


This blowback-operated prototype was developed at SIG from around 1918 - 1920, under the direction of Gotthard End. It was chambered in the 7.65mm Parabellum cartridge and fed from Swiss Luger magazines of 8, 13, or 16 rounds. The design appears to have been influenced to some extent by the German M.P.18,I, a variant of which was later produced by SIG from 1920 - 1927. The SIG prototype submachine gun was made on an experimental basis only and was apparently trialed by the Swiss Army in 1918, but failed to generate sufficient interest and was never put into serial production.

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