I had a scope on my pursuit LT (took it off the open sights are nice) anyways I first tried fairly low mounts and they did not work the rear sight had to come off and also the scope was in the way of the hammer. then I went to what was supposed to be the see through mounts but when I put them on,the hammer problem was solved but the rear sight still had to come off, Of course I had it sighted in for 100yrds which if you put a scope on it you wouldn't need it for that far so you could use the rear sight for like 25yrds and you should beable to leave it on. Also with a scope on it I found it a pain in the butt to remove the breech plug to clean and lube I guess you could take it off every time but then I don't know it your poi would change.