i just saw this and I wonder if anyone has seen or built up this reciever set? I'm looking to buy a stripped lower or two and saw this...
http://palmettostatearmory.com/psa-ar15-5-56-billet-upper-lower-receiver-set-stripped.html
http://palmettostatearmory.com/psa-ar15-5-56-billet-upper-lower-receiver-set-stripped.html