shrouded means integrally "quieted".it's a marketing ploy for spring guns as there is not much noise anyway, and what there is sounds more mechanical than a gunshot.i don't mess with them as ny states that any gun that has been suppressed is illegal to hunt with . in my mind this includes airguns as once an airgun can achieve 600fps, one can hunt with it, and once one hunts with it, it's considered a firearm. some would tell you different, but i'de rather not leave myself open for the shaft!according to the way i read it, the moment you use an airgun in the manner of a firearm, it is a firearm! i'm not chancing it! even my loudest pcp is more quiet than my 22wmr