The provisions of this Part shall not apply to:
(1) Law enforcement officers and employees acting in the lawful performance of their duties.
(2) Law enforcement or other authorized agencies conducting a firearms training course, operating a forensic ballistics laboratory, or specializing in the development of ammunition or explosive ordinance.
(3) Department of Corrections officials and employees authorized to carry firearms while engaged in the performance of their official duties.
(4) Members of the armed services or reserve forces of the United States or Louisiana National Guard while engaged in the performance of their official duties.
(5) Federal officials authorized to carry firearms while engaged in the performance of their official duties.
(6) The lawful manufacture, importation, sale, purchase, possession, or transfer of armor-piercing bullets exclusively to or for persons authorized by law to possess such bullets.
(7) A bona fide collector licensed by the Department of Public Safety.