As used in Sections 16530, 16640, 16870, and 17180, Sections 17720 to 17730, inclusive, Section 17740, Section 30215, and Article 1 (commencing with Section 33210) of Chapter 8 of Division 10 of Title 4, "shotgun" means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of the explosive in a fixed shotgun shell to fire through a smooth bore either a number of projectiles (ball shot) or a single projectile for each pull of the trigger.
Ca. Pen. Code § 17190