For Cbs they are noisy,thru long fat barrels they just go "click",,,,, they may attract attention out of such a short barrel, I have a Norc 13" and I've shot CBs with it. If you have the gun get some CBs, maybe the geography of where your shooting will work in your favor at keeping them quiet. Try asking some one to shoot a few while you stand off at some distance (not in front!! haha) maybe they will just sound like a hammer.