Pistol is the ability to use a handgun, whether a single-shot or repeater.
1. a short firearm intended to be held and fired with one hand.
verb (used with object), pis·toled, pis·tol·ing or (especially British) pis·tolled, pis·tol·ling.
2. to shoot with a pistol.
1560–70; < Middle French pistole < German, earlier pitschal, pitschole, petsole <Polish Pistolet < Czech píšt’ala literally, pipe, fife, whistle (presumably a slang term for a type of light harquebus employed during the Hussite wars), akin to pištět to squeak, peep.