XDm 9mm... 9mm can be found and traded for all over the world.
12 Guage Mossberg 500 or Remington 870... shoots anything/everything 12guage
the last would be a hard call.. but probably something in .308... or .223 like an ar or mini-14.
Three guns?????? All I have is this 30-06 here. I lost the rest on a hunting trip in south Texas. The illegals just stole them right out of the truck. I still have this because I was in the field with it.
And if they don't buy that they can have them all muzzle first!