​The Weapons Act 1990 defines a weapon as:

(a) A firearm; or

(b) Another thing prescribed under a regulation to be a weapon or within a
     category of weapon; or

(c) A thing that would be a weapon mentioned in paragraph (a) or (b), if it 
     were not temporarily inoperable or incomplete.

Firearms are included within the definition of weapon and generally refer to handguns, rifles and shotguns.

The Weapons Categories Regulation 1997 also lists weapons that are not firearms such as crossbows, knuckledusters, maces or similar articles. 

Section 7A of the Weapons Categories Regulation 1997, details Category M weapons that are mostly prohibited weapons in Queensland.

Any person wishing to possess and use weapons in Queensland must first hold an appropriate and valid Queensland Weapons Licence.