At closer look I see the 0bama symbol and the hope and change on the safety LOL!
Palmetto has those separate lowers for $60 on the cheap and thought it was one.
I just had a crate of these delivered today, to add to my stockpile. 2 more crates on the way, for next week:
http://ammoman.com/p/60/lake-city-556-55-grain-tracers
Plus, Bushy 30 x 40rnd and 20 x 30rnd mags:
http://www.bushmaster.com/products.asp?cat=9