Mod a 3AA to D adapter to handle 3A+ ?

How thick wires would you need to solder to the adapter to make it work?
I’ve read somewhere that they will handle max 1amp unmodded, but I’m gonna use a 3A driver from illuminationsupply for my 1D/26650 Mag mod.

What OL has done in the past is replace all the contacts with copper. I have one of those and it can do 3+ amps easily.