If you look the Trigger housing over real close you will see a small "set screw" I think it is on the top so it is not very noticeable, However, I think this adjustment is only for the "Creep" not for the weight of the "pull". I am pretty sure this is correct but not positive, I have always felt the trigger on the revolution was one of its strong points. If you are having problems maybe contact Knight, they have (had) good customer service,
I have the early Revolution, and for anyone who ownes one, (imop) the best upgrades you can do is purchase the "Domed" breechplug from knight. Maybe the Revolution II comes with the domed (I don't know) but if not Order one, you will not be disappointed. it really reduces the "BlowBack" It Works!!!!!!!!!!! When I had to send mine in years ago it was returned with the "domed" inplace, a great improvement. Doc