ATF National Firearms Act Branch during their normal office hours at (304) 616-4500 or you can email them using their email address NFAFax@atf.gov. If your communication simply requires you to fax them a document or form, you can fax that information to (304) 616-4501.
Once a correction letter is created the examiner will post mark the date and mail the correction letter to your FFL/SOT or to yourself, depending on the application type as mentioned above. The response required by date is one month from the date that the correction letter was created by the examiner.
No, the individual applicant, gun trust applicant or legal entity applicant is not required to engrave their information on the SBR/SBS if the SBR/SBS is already made and being transferred using the ATF Form 4 information.
The ATF doesn't require box 13 to be filled out if you are applying for a tax stamp for a ATF Form 4 silencer. If you are applying for a tax stamp for a ATF Form 4 silencer you still can answer this question, but isn't required by the ATF.
Box 4e of the ATF Form 1, ATF Form 4, and the ATF Form 5 will ask what the barrel length of the silencer is. Because the silencer doesn't actually have a barrel length the value that you will use for Box 4e is simply "N/A."
