For firearms imported after January 30, 2002, the engraving, casting or stamping (impressing) of the country of origin must be to a minimum depth of.For firearms imported after January 30, 2002, the engraving, casting or stamping (impressing) of the serial number must be to a minimum depth of.Must be conspicuously engraved, cast or stamped (impressed) on the firearm frame, receiver, barrel or slide.
003 inch and in a print size no smaller than 1/16 inch The serial number cannot duplicate the serial number appearing on any other firearm the importer previously imported.Must be conspicuously engraved, cast or stamped (impressed) on the firearm frame or receiver.Firearms Verification Firearms Verification Overview Marking Requirements
