I just began the process for my 4th today, $200 for the tax stamp and another $100 for the FFL transfer fee on top of the actual price for the can. Don't think I'll be buying anymore (maybe a .22) but I don't want to hunt with out one anymore, just makes the shooting process much more enjoyable and hardly disturbs game animals. The thing that mostly gets me is that it's a simply muffler on the end of your barrel, nothing more or less. It's not "silent", just not as loud as without. I think movies have given people the wrong idea about silencers. The fact that a simple muffler cost $1,000 more or less, all-in, is just ridiculous if you ask me but that's our gov't at work!