Has anyone dealt with EDC Tactical out of Virginia regarding one of their lowers being out of spec? I ordered one of their billet lowers because of the custom engraving option. This was for my son's 18 b-day, his first AR build, and he had a specific image in mind. The lower looks nice as does the engraving but the channel for the pivot pin spring and detent isn't level but instead slopes downward. This causes the detent to enter the pivot pin groove at a downward angle which in turn rotates the pivot pin counterclockwise and impacts the lower. The point of impact from the top "corner" of the pin resulted in the cerakote chipping off. I've tried multiple pivot pins, all mil-spec, with no change. I emailed them a couple weeks back but haven't received a reply. I'm hesitant to ship it back without their knowledge. I'm hoping the lack of communication is due to the holidays. Anyone have good luck getting issues resolved with this company?