(a) No individual, partnership, association, corporation or any other entity shall sell, offer for sale, give away, distribute or furnish any airgun or ammunition to any person under the age of eighteen years.
(b) The provisions of this section do not prohibit or render it unlawful for the parent or guardian of any such person under the age of eighteen in his charge or custody to furnish such person under the age of eighteen any airgun or ammunition for purposes of instruction in firearm safety, care, handling or marksmanship under the supervision or control of a responsible adult.
(c) Whoever violates this section is guilty of a misdemeanor of the third degree.