Atf serial number requirements 80 lower. Otherwise, federally, you do not have to mark it. Therefore, you are not required to serialize or register a rifle built using an 80% lower or blank receiver. Feb 22, 2023 · Any 80% lowers fabricated prior to July 1, 2018 require a serial number to be engraved on the weapon. 92 [c] requires that the serial number affixed to a firearm must not duplicate the number affixed to any other firearm that you import into the United States. Here's an easy-to-follow guide on how to engrave your Polymer80 frame. Our engraving fee is $29. Nov 8, 2019 · The serial number must be placed in a manner not susceptible of being readily obliterated, altered, or removed, and must not duplicate any serial number placed by you on any other firearm. Oct 14, 2022 · In an open letter to FFL holders, ATF explains what "readily" means. Nov 28, 2018 · How to guide and walk-through guide for the ATF NFA Engraving Requirements for the ATF 5320. 6) The marking may be engraved, cast, or stamped. mhbh1 xiztb6l dlc4 zyiey cggvq 2gtk e3e bxrvtims ta quqpak