Bcn complete lower Appeared it more than so repeatedly and may't find the blem. Everytime I do think I discover something off, it is simply oil smudges. Best guess at this time is scuffs on castle nut, or the two very small silver places while in the flare in the https://remingtondctka.thelateblog.com/29527091/examine-this-report-on-bcm-lower-receiver