There is one also that mounts where the rear sight ramp is. If I had to hunt in a non scoped area again, I can sure understand why fiber optic sights are not liked. For some reason they go blurred on me when I use them. In fact, when Wisconsin did not allow magnification in their scopes, I went to all 1x power scopes. I was amazed with the difference it made in my shooting. Peep sights are all fine and good, but in shadows and low light times of the day, they also gave me sighing problems. Probably my all time favorite primitive sight is the old Buckhorn sights found on Lyman rifles and PA Hunters. For some reason I can see them and focus through them.