This'll be my first post, although I've been reading for a while. For Rufus about the illegal ar15, you have to get rid of the parts that make it an AW in order to keep it. My desk ate my paperwork I found on this so this is from memory. First, a rimfire (dedicated .22) firearm does not fall into the AW category(DOJ and the senate bills are written about centerfire arms). I do not know if DOJ or Attorney General would accept having a dedicated .22 upper attached to your lower due to the ability to exchange barrels. Opinions on that? Second: If you do physically part from your lower, you can still get one of the lowers made for single shot, three or five round closed magazine well (DPMS, etc.) and shoot .223 legally. Lastly for those who have registered, you can get your AR15 removed from registeration only if you can show that you have removed the AW parts. It's all on the DOJ site and in the little brochures they put out about the registration. I hope this helps, it is, to the best of my knowledge - correct.