For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   AIR RIFLE. Any air gun, air pistol, spring gun, spring pistol, B.B. gun, pellet gun or any implement that is not a firearm, which impels a pellet constructed of hard plastic, steel, lead or other hard materials with a force that reasonably is expected to cause bodily harm.
   DEALER. Any person, copartnership, association or corporation engaged in the business of selling at retail or renting any of the articles included in the definition of AIR RIFLE.
(ILCS Ch. 720, Act 535, § 1) (2000 Code, § 137.10)