Reinserting a toggle assy. into a stripped upper MAY require very gentle manipulation of the upper to get it started, but usually it is more a matter of finding the correct angle for insertion. I suppose a good caliper could tell a story on whether the amount of "spread" changes between the chamber area and the back end.
But quite honestly it all sounds like a non-problem. Or maybe an excuse to buy another Luger...
dju
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