Never has bothered me but I have a buddy that is very meticulous about cleaning his AR15's after shooting. I told him I rarely do anything but a patch and bristle. But no,not him. He really wants to be able to cleanse whatever laquer coating he perceives to be there. Any thoughts? He didn't like my suggestion about soaking the barreled action in kerosene. Refuses to believe that's what makes up hoppes #9. Ideas?