I keep seeing the ad in a popular catalog for a "Vet" U.S. Military Surplus Colt M16A1 Parts Kit-449.99 needs the receiver, disc, and barrel. My thought was get a Spike's Lower for @ 100$ , Then a barrel, but I've yet to find a barrel. So, sight unseen, the "KIT" comes to 550$ before taxes, FFL and shipping, without the barrel. Questions: 1-Anybody have any experience with these kits? 2-Anybody have any ideas as far as a proper M16A1 barrel, in 5.56 that's chromed, and accurate? 3-Any other ideas, comments, or experiences? 4- Does the cost(claims all "new condition Colt parts") seem reasonable? Even if it worked out well, the lower and barrel would still not be Colt, for one thing.