There are volumes of information on the topic you mentioned, and lots of members on this site with actual experience in the realm of supressors. As suggested, determining the legality and getting the paperwork figured out is the hard part. That done, come back and you will get lots of help in brand and model selection. Someone here may have something for sale that would be just right. Some States, like mine (NC), have passed irrational and fatal laws making it literally impossible for a "regular guy" to legally own one. They make perfect sense to me. Good luck, Mac.