I forget his name but there's a fellow in New York state (I think) that handles importation of individual rifles. It is possible to get an importers license but the ATF treats applications as if you were going into business so even to bring in one is a major hassle on your own. I looked into it for a rifle that was at auction in UK and as I recall the fees in addition to the purchase price were between $200-$500, which if the price on the rifle is good enough it's worth it, but a lot of times the additional hassle is a deal breaker.