I am toying with the idea of getting a Glock 21 and then buying an aftermarket threaded Bar-Sto barrel. I then want to add a suppressor. Is anyone experienced with suppressing a Glock 21? How about the Bar-Sto barrels? Are they as accurate as the regular Glock barrels? What recommendations do you have for a suppressor? What is the deal with oiling suppressors? Is this required for all suppressors? Also, what is a recoil booster? I am basically looking for a fool-proof setup that allows for reliable cycling while emitting the quietest sound signature possible. Pictures? Thanks.