Yes, in general it is not a good idea for the magazine to be moved around by your hand. The welrod does this, but it is manually operated, so the reliability of the magazine is not really a concern:
It is presumably for this reason the wartime manual for the Sten gun specifically instructs soldiers not to use the magazine as a support grip:
Yes, in general it is not a good idea for the magazine to be moved around by your hand. The welrod does this, but it is manually operated, so the reliability of the magazine is not really a concern:
It is presumably for this reason the wartime manual for the Sten gun specifically instructs soldiers not to use the magazine as a support grip: