bdb
NES Member
So, first off, I know I do not need a serial # on a home build rifle. That said I did have 2 80% lowers engraved. While they were getting the custom engraving, I did have a serial # put on. It is for my own purposes. OK, so I know that IF I had them engraved with a SN it has to meet Federal requirements on engraving depth right? I have no way to measure the depth to see if it is deep enough. If it is not I would have the SN portion done deeper prior to getting the 2 of the anodized. What is the best method to be sure? Should I pick up a simple tool or take it somewhere like a gunsmith to have it checked? Just curious.