1) General subject: chiller diller, gun, heat, heater, peacemaker, pepper caster, pepper castor, pistol, popper, revolver, rod, wheel gun
2) Colloquial: barker, bulldog, shooter
3) Slang: barking iron
4) American: chiller, gat, gatling
5) Military: handgun, revolver gun
6) Jargon: Bolivar, buffer, cannister, cannon, equalizer, fire stick, hog-Iegg hog's leg, pepper-caster, pepper-castor, smoke wagon, artillery, bulldozer, hush-hush, kicker, pencil, piece, pop, poper, wagon
7) Oil: revolving nosepiece
8) Immunology: nosepiece (микроскопа)
9) Fishery: revolving nosepiece (микроскопа)
10) New Zealand: squirt
11) Arms production: one-handed weapon, revolving pistol, side arm, side arms, wheelgun
12) Taboo: sheet (подражание произношению негров из южных штатов), shit, tomtit
Универсальный русско-английский словарь. Академик.ру. 2011.