BCM LOWER RECEIVER CAN BE FUN FOR ANYONE

bcn complete lowerAppeared it over so many times and will't discover the blem. Everytime I believe I discover one thing off, it is just oil smudges. Greatest guess at this time is scuffs on castle nut, or The 2 little silver places from the flare of the magwell. 1mm dots at most. BCM QC won't mess all over it seems.Net browser based mostly cookies