It is my understanding that hi-cap magazines can be imported as long as it can be demonstrated they were made before the '94 ban. At least, that seems to be the consensus on the GB forum. They have said that this loophole had Feinstien hopping mad, nothing could be done about it. There are a lot of 10/22 mags being imported from Canada with the "export only" markings ground off, these would be illegal. I have also heard that someone up there has learned to work the "plastic" type material on the Beta C-Mags to remove the markings, and some of those are coming in, be careful!