NFA Engraving is $50

Engraving is performed to ATF minimum standards. Minimum depth is 0.003 inch and minimum letter height is 1/16 inch. Engraving has to be seen without removing parts from the weapon. Engraving must include the name of the manufacturer (your name or name of trust that owns the weapon), and city, state, and country of the manufacturer (your name or name of trust that owns the weapon).