Montana Title 45. Crimes § 45-8-332. Definitions

(a) a projectile containing an explosive or incendiary material or any other similar chemical substance, including but not limited to that which is commonly known as tracer or incendiary ammunition, except tracer ammunition manufactured for use in shotguns;

(b) a bomb, grenade, explosive missile, or similar device or a launching device therefor;

(c) a weapon of a caliber greater than .60 caliber which fires fixed ammunition or any ammunition therefor, other than a shotgun or shotgun ammunition;

(d) a rocket, rocket-propelled projectile, or similar device of a diameter greater than 0.60 inch or a launching device therefor and a rocket, rocket-propelled projectile, or similar device containing an explosive or incendiary material or any other similar chemical substance other than the propellant for the device, except devices designed primarily for emergency or distress signaling purposes;

(e) a breakable container which contains a flammable liquid with a flashpoint of 150 degrees Fahrenheit or less and which has a wick or similar device capable of being ignited, other than a device which is commercially manufactured primarily for the purpose of illumination.