Not too long ago, I saw an ad for DIAS's, saying they were "legal to own" and "no paperwork".
One point that needs to be brought out, aside from legal issues. When that bill was in the mill, some DIAS makers began turning them as fast and cheaply as possible. The result is that many on the market are made of bad material, even zinc alloy, and won't last for even one magazine. So the buyer pays a hefty price, risks a fine and/or imprisonment, and ends up with nothing.