They have to have the name of the person/company that registered them as a NFA item
Engraving your name is done one NFA items that you reistered on form 1.
If you buy a that suppressor on form 4 it will have KAC's name and address engraved on it.
"No, it's not a silencer. This little doodad is my own invention. I call it a loudener." --Sledge Hammer