aimpoint is my choice ! for the best , i have owned approx 35 or so red dots and currently have over 20 . the leupold is not parralex free dispite what they say i owned one , called the factory , and sold it soon, the ultra dot is excellent, and a lifetime warentee ,but the field of view is smaller than most makes in the 1 inch or the 30mm size. stay away from sights that automaticly adj the brightness of the dot , i tried 4 different makes of miniture sights and there all the same the dot is to bright for accurate shooting, also stay away from multipul reticles ! something else to go wrong and at ranges past 25 yards they dont allways track correctly when changing reticules or dot sizes i have perhaps 10 scopes with this option some are ok and some are not.