Feeling like it was so easy, that a caveman could do it, I went and did the unthinkable. Unassisted and uninitiated, I field-stripped by still-never-shot AR for a thorough cleaning and lube. The good is that I got it back together, but not before I noticed something that gave me pause. What's up with those little dimples knocked into the top of the bolt carrier around the hex nuts? That isn't evidence of a bubba-job, is it? I've barely had the dang thing a week and I'm already planning for my first build. My gosh, these things are addicting, aren't they?