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View Full Version : rear take down lug dimpled


fz1boxer
03-12-21, 04:02
does any one recognize this dimpling on the rear lug?
is this a manufacturer's mark and who's is it?
thanks
bamashooter
03-13-21, 06:50
Similar but no definitive answer. https://www.reddit.com/r/ar15/comments/a5dul2/what_are_these_markings/
fz1boxer
03-14-21, 07:33
Thanks for the link
bamashooter
03-14-21, 08:01
You bet. One of those little (but numerous) AR mysteries. :)