Theres one in cheyenne wells that I know of, one at dragonmans in the springs, and I also think that theres one near peterson AFB?

I am not sure on dates though. I know one got canceled a while back.

A good person to ask about this would be alan samuel. He is generally at all of them, so he would probably know the dates better than I would.

You can look him up under industry parters
(his co-ar15 user name is bluker1 by the way)

hope this helps,
Kenny