I think we should appreciate someone not wanting to go into detail on something such as this and I can imagine it's not a section 1 vs section 5 issue but following the gist of the thread, how an allegedly only military owned firearm made it onto civvie street.
I think the previous posts illustrate how that's perfectly feasible. Makes you wonder how far such illogical thinking could go? Reclaiming L42's?
Hope it all gets sorted for you David.