Guys, everyone is correct here. I'm an old F4 backseater. The early models (B,C, and D) had no internal gun, but could carry gunpods on the centerline and/or the inboard pylons. This one appears to be a C model. The E model was provided an internal gun because, for among other reasons, the rules of engagement in 'nam sometimes made it difficult to employ the beyond-visual-range missles and even the short-range missles, so you needed a suitable weapon for an inside-a-phonebooth "knife fight." The radar could indeed burn a ground crew but not an airborne opponent. Our checklist showed a danger range for the radar out to (I think) about 200 feet, so we were not allowed to turn it on until on the runway. Thanks for the great picture of the old bird made under difficult conditions. The colors are right-on and the mkii made it super sharp. BTW, this one is loaded for bear - two 1000lb bombs on the centerline, heat seekers (AIM-9) on the wing launchers and radar missles (AIM-7) in the fuselage missle wells. Thanks again, Chris.