Just saying because typical revolvers aren't capable of being silenced: while silencers handle muzzle sound, a revolver has a second exhaust port: namely where the revolver cylinder meets the barrel. No silencer covers and silences this gap (as it would ruin the ability for the revolver to cycle rounds) and unless you're using a Nagant revolver which used special ammunition that closed this gap, then your revolver will still make a considerable racket even with a silencer attached. For silencing, a semi-automatic makes much more sense, or, better yet, a bolt action weapon as semi-automatics still have a secondary output for sound since the gas from the cartridge is used to rack the slide.