As used in this chapter, "firearm" means any weapon:

1. (1) that is:

   1. (A) capable of expelling; or
   2. (B) designed to expel; or

2. (2) that may readily be converted to expel;

   a projectile by means of an explosion.

As added by P.L.19-2001, SEC.1. Amended by P.L.106-2015, SEC.2.