If I'm not mistaken, you can use a flare gun and get the same kind of service. This is a fine, nominally non lethal option if you still want the same assurance

If I'm not mistaken, you can use a flare gun and get the same kind of service. This is a fine, nominally non lethal option if you still want the same assurance as a gun, but don't care for the whole lethal weapon aspect of it.