Thanks for the link, I just bought one and it came in today. It doesn't have the stock in the photo with the swivel sling attachment but the correct one (not the N1 but Colts M4 stock) No cut bolt carrier but a full M16 BCG, the rifle and bolt look like it had maybe 50-100 rounds through it (almost zero wear on the bolt) Its almost brand new except for a few minor scratches from handling.
Everything on it is colt including the colt marked bolt carrier.
For only 700 bucks its a no brainer, If you don't like the stock, toss it and buy a N1 or a fiberlight..no big deal.
The add says sold out, but he told me today the guy backed out so one is still available.
Bought it on the 15th arrived today on the 17th...real easy with summit
thanks again to the OP for the link