What I mean is that the difference in sound from unsuppresed 5.56 to suppressed 5.56 is very very noticeable, and this is certainly not as effective I suppose. The manufacturer says 135db on a 28” 12g with full length suppressor. The shorter barrel will make it louder. So I don’t know how much louder the 18.5” barrel I have is compared to a 28. It’s not uncomfortable without hearing pro.
Finding compatible shotguns with shorter barrels (ie 18-22”) is limited since most of them are “tactical” and have fixed bore. I think I know the major ones though if you want I can list them out.
