I'm glad this thread came up and has lasted as long as it has. By page 4 I was expecting someone to get a fuss going about the lack of honest wear marks, brass rubs, dents & dings, etc. I even wondered if anyone would mention all the dry bolts... those of us who've been here a few years would like to have a nickle for every time someone's offered the advice that AR bolts have to be dripping/swimming/sloshing with oil to even run.
ARs should most definitely be run wet, no problems if they are dry and clean but when they get dirty they should be wet.
Dirty & Wet AR!