ok but why the hell would they be useful
To suppress the sound, obviously. A supressor is pretty useless for hunting, but for tactical paramilitary use?
Hell yes.Most notably, shotguns can be used to open doors as a sort of "universal key" that goes boom when used. However, shotgun silencers are notoriously ineffective due to the wadding.
and if its a double barrel would you have two silencers? wot?
I don't think they make them for double barrels, too old lol
There are no double-barrel shotgun silencers because they only have one practical use:
Hunting. And yes, these old-fashioned boomsticks are still made and sold every day.