http://palmettostatearmory.com/I picked up one and a blem lower receiver (70 bucks, no bargain but getting scarce). Not a bad price for the complete lower. Free shipping, too.
Also, got 10 boxes of Gold Dot 64 grain 223 ammo for 10 bucks a box and free shipping. I don't buy hardly any factory ammo, but it's cheap, shoots a decent (I hope) bullet, and my reloading/shooting stuff is packed for a move. Won't hurt to have a couple hundred rounds around.