M & A Parts, Inc....just got a recommendatin to them last week for LPK's in stock; I searched a little bit and found a couple posts from a long time (several years) ago that had some unhappy customers (poor customer service was the gripe), but the more recent comments were good (here and on GT). I have yet to receive anything from them, but even though their phones are ringing off the hook, they went through a list of things they had in categories I asked about that were listed as OOS on their site, and answeered 30 questions about their complete AR kits...I was surprised that they ahd them and that their price was relatively reasonable, so asked about chrome-lining, barrely manufacturer, headspacing, shot peening, BCG staking, etc. etc. etc. Seemed to be decent components, we'll see how the end product turns out shipped.