The great things about the 10/22 are that they are modular and they are so popular that there are a plethora of after-market parts available. It is easy to put a lot of money into a 10/22 by changing parts piece by piece, what I call the "Stone Soup" process, but I have come to the conclusion that spending the $250 or so that a full tune up by CPC costs is a more cost effective and holistic approach. I've done it both ways several times over, so this isn't speculative advice. Good luck with your project.