I swear I'm not trolling or trying to ruffle any feathers, just looking for an answer. How are these legal? I've searched extensively and I can't get a simple straight forward answer, but it seems to me that every air gun moderator, LCD, or whatever you want to call them technically meet the definition of an "illegal" device; they are not permanently mounted, they do reduce noise, and they could be adapted to a firearm. Is there some clearly published law that defines "legal" criteria or use of these devices on air guns, or are we just all just tiptoeing around the subject and not speaking of it, in hopes that big brother just won't look that closely. Again, I'm not looking for an extensive debate on the subject, opinion and conjecture has been well covered everywhere the subject comes up, I'd just like to get a simple, clear answer. It seem s that everyone just turns a blind eye, but just because the law isn't enforced, doesn't mean it can't be enforced, and I'm not trying to get hemmed up over a pellet gun.Thanks! Holler.