Well, mystery solved. I took my Black Ice in and had it looked at. Remember when I said that I checked every allen screw? Wrong. I have a Trophy Ridge Mantis sight and there is the smallest allen screw they make on the side of the sight. This screw was backed almost the whole way out. Tightened it down and absolutely no more buzz. Boy did I feel stupid.
Anyway, this was a good thread with alot of pointers that I will keep an eye on.