The following tutorial will show you around the part 479 landing page.
27 CFR Part 447
Importation of Arms, Ammunition and Implements of War
27 CFR Part 478
Commerce in Firearms and Ammunition
27 CFR Part 479
Machine Guns, Destructive Devices, and Certain Other Firearms
27 CFR Part 555
Commerce in Explosives
27 CFR Part 646
Contraband Cigarettes
27 CFR Part 771
Rules of Practice in Explosive License and Permit Proceedings
Effective date is the date this part was last amended
Notwithstanding any provision of § 478.28 of this chapter, it shall not be required that authorization be obtained from the Director for the transportation in interstate or foreign commerce of a firearm in order to effect the transfer of a firearm authorized under the provisions of this subpart.