When a character has a [[gun]] that covers the arm, or a gun instead of an arm. Common in [[science fiction]] [[cyborg|cyborgs]].

Common examples:
* [[Reiuji Utsuho]] from [[Touhou]]
* [[Samus Aran]] from [[Metroid]]
* [[Black Rock Shooter]]'s [[Black Rock Shooter (character)|eponymous character]]
* [[Cobra (space adventure cobra)|]] from [[Space Adventure Cobra]]
* [[Mega Man (character)|]] from the [[Mega Man (series)|]] series.
* [[Omegamon]] from [[Digimon]].
* [[Barret Wallace]] from [[Final Fantasy VII]]

h4. See also

* [[arm mounted weapon]]
* [[cannon]]
* [[finger cannon]]
* [[prosthesis]]
* [[psychogun]]
* [[weapon]]
アームキャノン エックスバスター