I had actually never fit a barrel before, period. However, I purchased a threaded barrel for my CZ75 and it arrived today. After a bit of help from Google, I decided to give it a try. It took about an hour but I'm pretty sure it's good to go. Now all I have to do is get a new booster for my 45 suppressor in order to shoot it suppressed. I'll have to see if this new barrel is any more accurate than the old non threaded one. Any experience with these threaded barrels? Do they tend to be more accurate or about the same? This one will match my kadet now too.