A Viper from the 388th Fighter Wing at Hill AFB heads out to the range from Nellis Air Force Base. Judging from all those pointy things on the wing, I don't think I'd want to meet this F-16 in a dark alley.
They designate whether the "ordnance" under the wings live or dummy ordnance. If you see it's either yellow or red rings (I forget which), it's live. Blue rings mean dummy ordnance.