The Classic Oil Filer Silencer / Suppressor is shown off in this video and it works actually amazingly well. This attachment comes from Econo-Can. The Econo-Can is a Class 3 Item and does require a Tax Stamp from the ATF.
The ATF has been adding an "Approved with Conditions - See Conditions on the Last Page of PDF" that relates specifically to the engraving the firearm as a maker on ATF Form 1/eForm 1 applications. ...
The newly released ATF e5320.20 has been significantly helping speed up approvals and it brought back the option for coordinates. However, the ATF e5320.20 can't be used for all NFA Firearms. It ...
Per the ATF eForm's FAQ, "A 'VOID' is requested when the Form has already been approved, but no transfer, Making, or Manufacturing has occurred. A 'Withdrawal' is requested when the Form is still p...