ok, I am starting to think about getting a supressor. I really have no need for one as I mainly shoot at ranges and the noise from other shooters would still impact me, but I am thinking it might be nice to have. So, I know about the Stamp, how to get it and its cost. I need to know more about the technical side of it. I have heard people say you can use a supressor across more than one kind of gun - is this true? I would have a hard time believing that one that works for a .45 would work for a .22LR. But, I have seen the manufacturers push different models for everything from just a pistol to rifle change. What do I really need to know? For instance, could I use the same supressor on my AR and my .22LRs? How about 9mm, .40 and .45 - both pistol and carbine?