In Maine
In Maine, the definition of "dangerous weapon" includes firearms, each of are defined in Title 17-A M.R.S.A § 2 sub (9) & (12-A);
17-A M.R.S.A. § 2(9) Dangerous weapon:
A. "Use of a dangerous weapon" means the use of a firearm or other weapon, device, instrument, material or substance, whether animate or inanimate, which, in the manner it is used or threatened to be used is capable of producing death or serious bodily injury.
B. "Armed with a dangerous weapon" means in actual possession, regardless of whether the possession is visible or concealed, of:
(1) A firearm;
(2) Any device designed as a weapon and capable of producing death or serious bodily injury; or
(3) Any other device, instrument, material or substance, whether animate or inanimate, which, in the manner it is intended to be used by the actor, is capable of producing or threatening death or serious bodily injury. For purposes of this definition, the intent may be conditional.
C. When used in any other context, "dangerous weapon" means a firearm or any device designed as a weapon and capable of producing death or serious bodily injury.[6]
17-A M.R.S.A. § 2(12-A) Firearm:
"Firearm" means any weapon, whether loaded or unloaded, which is designed to expel a projectile by the action of an explosive and includes any such weapon commonly referred to as a pistol, revolver, rifle, gun, machine gun or shotgun. Any weapon which can be made into a firearm by the insertion of a firing pin, or other similar thing, or by repair, is a firearm.[7]
In Florida
Sec. 21-14. - Dangerous weapons; penalty; trial court.
(a) Concealed dangerous weapons. It shall be unlawful for any person to wear under his clothes, or concealed about his person, or to display in a threatening manner any dangerous or deadly weapon including, but not by way of limitation, any pistol, revolver, slingshot, cross-knuckles or knuckles of lead, brass or other metal, or any bowie knife, razor, dirk, dagger, or any knife resembling a bowie knife, or any other dangerous or deadly weapon, except as hereinafter provided.
Note— Florida Statutes § 790.33, as amended, preempts and declares null and void all local ordinances, administrative regulations and rules in the field of firearms and ammunition, with limited exceptions set forth in § 790.33, as amended.