I didn't listen to the commentary. Did he mention the gun in the video is something cobbled together using a parts kit? It is not an original Mk. III.
Not supposed to hold the magazine when firing a Sten ,
MP40 mags work in a STEN, loose fit for sure but in a pinch they work.
Correct, I'm sure the Brits designed it that way, so in an emergency our soldiers could use German mags and ammo in their Stens, but not the other way around.
Yes the Commonwealth cannelure on the casing is finer then the German 9mm casing so the extractor of a Sten gun can grip and extract a German casing but the German MP40 extractor cannot pull out a Brit casing.




























