Reattach Dutch Unit Plate

[G.T.]

Hi to all, well, in my travels thru life, I have been exposed to just enough knowledge to make any repair attempt a dangerous preposition?....... meaning, I've probably ruined more stuff than most people ever have even had?
Anyway, back to the solder job or lack of one! Two things I know are important to any solder job of even marginal quality, and that is surface prep, and cleaned / fluxed, properly? This gun shows evidence of never seeing either? Much less extreme heat. If'n'it were mine... I'd leave the plate off, and clean up the residue a little and call it a success! BTW, I have a couple of the correct mags for that gun? I'd sell or trade?.... Best to all, til....lat'r....GT