A weapon is defined under various federal, state, and local laws, which vary by jurisdiction. A weapon is generally something used to injure, defeat, or destroy and may cover many types of instruments, such as a blackjack, slingshot, billy, metal knuckles, dagger, knife, pistol, revolver, or any other firearm, razor with an unguarded blade, and any metal pipe or bar used or intended to be used in a club, smong others.
The following is an example of a municipal definition of a dangerous weapon:
"Section 13.68.010 Dangerous weapon--Defined.
As used in this chapter, "dangerous weapon" means and includes, but is not limited to: