They come with a built-in "noise dampener" that reduces the noise by roughly 50%, according to the description.
They're definitely more of an upper-end air rifle aimed at an adult audience, but if you're worried about nosy neighbors, or you want to do a little surreptitious "pest removal" (e.g., shooting squirrels in your bird feeder), it might be just the ticket.
Here's a link: http://www.gamousa.com/family.aspx?familyID=71
MojoTexas
