For the purpose of this subchapter the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AIR GUN. Any gun, rifle, or pistol, by whatever name known, which is designed to expel a projectile by the action of compressed air or gas, or by the action of a spring or elastic, but does not mean a firearm.
DEALER. Any person engaged in the business of selling at retail or renting any air gun.
(‘83 Code, § 137.10)