While guns CAN be imported to the US, even if a particular firearm is perfectly legal to import (and even available here otherwise), importation may not necessarily be practical.
There was a thread on this not long ago in general discussion... you'll need to find someone with a US Federal Firearms License that allows them to import guns, then make arrangements with them to get it done (unfortunately, I can't even begin to tell you where to look for this). The cost and trouble may make it less annoying to sell the gun over there before your move and order one once you establish residency here.
So...
Possible? Sure.
Easy? Not really.
Worthwhile? Again, not hopeful.