Used and shot a lot. Enough to prove itself. Not plinked with, just sighted in or bought and never messed with. I tried to show my little experience. In every AR thread all we here is which guns run and which don't.
Oh seen an Adams arms that had the feed ramps cut so,bad the gun wouldn't work .
Seen lots of bad feed ramps but the gun is designed so,well it will power through most of them.
I'll post stuff as I remember it. My brain discards garbage so I can insert porn