-Buffer Tube Milling File (intended to shave down the top of the AR-ten Buffer tube so the charging take care of can distinct on some upper/lower combos) I’ve engraved BRN-4 416 lowers to mimic the HK 416 logos. With enough passes, a fiber laser can do deep engraving likewise and https://rowanruvtr.frewwebs.com/33483711/not-known-facts-about-ghost-gunner-3