Mr. Airsoft got an airsoft MK23 guide showing the best possible upgrades to this stealthy airsoft pistol... "What's up guys! Welcome to a much requested video! I am breaking down my MK23 and showing you guys exactly what internals I use to acheive the results I get. I also show chronograph results and you will be able to see how consistent this build is whilst running on Nuprol 2.0 Green Gas."