The giving, selling, trading, bartering or exchanging for anything of value of any "firearm" as defined in section 5-4-1 of this chapter, or of any ammunition for any firearm, to any person under the age of eighteen (18) years, within the corporate limits of the city, is hereby prohibited and declared to be a misdemeanor; provided however, that nothing herein contained shall be construed to prohibit any parent or legal guardian from purchasing such a weapon for his child or ward, or from giving such a weapon to his child or ward, subject to the provisions of section 5-4-3 of this chapter. (Ord. C66-91, 1-3-1973)