While not as compact as the lever mounted one, Skinner makes excellent peep sights that are adjustable for both windage and elevation. I had one installed on the solid rib of a single shot gun for use with turkeys. I hadn't shot a peep sight in close to 40 years and was amazed at the eye-brain coordination to automatically center the top of the front sight's post fiber optic with both eyes opened. Look for the front sight with both eyes open and it's dead centered. I had gotten away from leaf sights as my eyes aged and switched to red dots. With "ghost" rings, the fuzziness of the ring has a clear center that the eye automatically centers on the front sight's aiming point. With a rear leaf sight with notch, it became a guessing game as to where the fuzzy notch was. Gil
