I've about decided to take the plunge and purchase a supressor. I understand the paperwork requirements to get one but I'm not sure what to buy. If I understand correctly the suppressor is the registered part so it can be mounted on any firearm you own. To get the most bang for my buck I would like to get a 5.56 suppressor so I can put it on any of my AR's and .22LR rifles/pistols. Will a suppressor for a 5.56 also work on .22LR? Is there any brand to stay away from? Thanks in advance.