Not supposed to do that anymore.Can't you just say 5" barrel, then make it any length longer than the SBR you registered to accomplish overall length?
OK, so if I filled out my form for a 10.5" and before I got it back I bought a 12" then I should let them know if I intend on keeping it the way that it is, right?
Still have to engrave it. When you make an SBR, from a Title I receiver, YOU are the MAKER, and therefore you must engrave your information, first and last name cannot be abbreviation, and only common abbreviations can be used for city/state.I don't have to engrave lower if I use the manufacturer's serial number, right?
If you decide to give your SBR a different serial number then you have to engrave that one too, but I don't think anybody would ever do that; there is no reason to do it.