Condor, MOPC:, Build Your Own Combination - AR500, Ceramic or Polyethylene Body Armor - Free Shipping - $216.95

already got ar500 plates, and they kill you after an hour or two, ceramics are the way to go if the thing isn't going to be a wall hanger.....at the very least opt for the extra padding in the shoulders.

at least that's my experience, just far too heavy with a full loaded
PC and rifle slung.