jc451911, You have gotten good advice here. But I might add a different bend, I don't know your budget, but warhawke has given you some things to think about, a complete package, ammo, mags, and rifle. These are all important. If you have 300 bucks, then an sks with detachable ak mags is in order, 500 bucks, an ak with mags and a little ammo is in order. 800 bucks and your world starts to open up to a lot of options. Ar15, cetme, fnfal with no frills, A high quality ak, or dragunov, however, if your just trying to hedge your bet against future gun, assault rifle legislation, buy an ar15 lower reciever, 100 bucks to 150 bucks for a naked lower, and you can build it up later. The lower reciever is what is serialized,,, and what counts. I did this before the last ban and the lower I bought was worth 4 times what I paid. I did not sell it, but wish I had bought a lot more. You can complete the rifle or rifles in stages as you go, don't forget to buy plenty of magazines.
Food for thought.