While in Phoenix last weekend chatting with a couple of forum members, many subjects came up one of which tweeked my interest. I have found that one can buy a AR-15 lower (over the counter), do some minor finishing, and with easily obtainable parts build a complete rifle. It's a very interesting concept. Like other products however I am sure that these components vary in quality. I was wondering if anyone here has done this, and could provide me with some insight as to which products are the best quality and where I might look for them. Thanks all!!!!!