Thanks for your reply lee.
Photographs would definately be a great help, thanks for that. The most important thing to clarify for safety's sake is whether or not your MGC MP40 is in Cap Firing OR Blank firing trim.
The 2 are very different and often misundertood. We have seen a number of cap-fire modelguns that have been mistaken as Blank Firing guns. The consequences of attempting to fire a bona fide 9mm Blank round in an unconverted gun are extremely dangerous because the gun can (usually will) literally blow apart, destroying itself and possibly injuring the person firing and others in close proximity.
If you're in any doubt, please don't hesitate to ask, we're only too glad to offer help if needed.
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Cerwyn
Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.