The thing you have to take into account on the CZ527 is it is a small long gun. I did not know what you ment by risers, Stalking bear is correct, see thrus would not work on that rifle at all. The factory scope rings are fairly low. I was incorrect in my scope it is the 4-7x26 Timberline, it is plenty of scope for what I would consider a fairly close range rifle. The 527 feels great in your hands, so compact and light, swings and comes up to target quickly. It is a rifle you do not want to hang much weight on it all, could screw up the great balanced feel of the firearm. If you have good eyes and our hunting deer out to 125 yards or so, I would give the rifle a try without a scope the first season myself. The factory sight are sighted in from the manufacture, you get the target right along with the rifle. I have bifocal glasses, now cant see a damn thing up close or away, optics help my eyes out quite a bit.