Looks like you're right. I can't see a mag. Don't know if he didn't have one, didn't get it seated properly or accidentally released it in scrambling around. A good reminder that Mr. Murphy is always around. At least he dropped it quickly and transitioned to secondary instead of staring & fiddling & wondering what went wrong.Holy crap! Look at the video very closely. There's no mag in the AR. All he had was the one in the chamber.
