So what sort of weapons does Arizona prohibit?  Thankfully, they are fairly clearly identified in A.R.S. 13-3101(A)(8), the statute that provides definitions concerning weapons.  The restrictions on firearms mirror the federal rules closely.  Here is what the statute prohibits:

(i) An item that is a bomb, grenade, rocket having a propellant charge of more than four ounces or mine and that is explosive, incendiary or poison gas.

(ii) A device that is designed, made or adapted to muffle the report of a firearm.

(iii) A firearm that is capable of shooting more than one shot automatically, without manual reloading, by a single function of the trigger.

(iv) A rifle with a barrel length of less than sixteen inches, or shotgun with a barrel length of less than eighteen inches, or any firearm that is made from a rifle or shotgun and that, as modified, has an overall length of less than twenty-six inches*.

(v) An instrument, including a nunchaku, that consists of two or more sticks, clubs, bars or rods to be used as handles, connected by a rope, cord, wire or chain, in the design of a weapon used in connection with the practice of a system of self-defense.

(vi) A breakable container that contains a flammable liquid with a flash point of one yhundred fifty degrees Fahrenheit or less and that has a wick or similar device capable of being ignited.

(vii) A chemical or combination of chemicals, compounds or materials, including dry ice, that is possessed or manufactured for the purpose of generating a gas to cause a mechanical failure, rupture or bursting or an explosion or detonation of the chemical or combination of chemicals, compounds or materials.

(viii) An improvised explosive device.

(ix) Any combination of parts or materials that is designed and intended for use in making or converting a device into an item set forth in item (i), (vi), or (viii) of this subdivision.

Fortunately, the statute does NOT include any firearms or devices that are registered in the national firearms registry and transfer records of the United States treasury department or any firearm that has been classified as a curio or relic by the United States treasury department.

*These lengths mirror the federal measurements spelled out in the USC, however, the illustrations in the NFA Handbook show a lengths of 15″ on the shotgun and 12″ and 18″ on rifles!