Although the "Patridge Blade" front sight is inherently more accurate than a bead, many customers prefer the round dot aiming point. Remember, a bead will cover your target and with a blade, you are shooting to the top of the blade so the point of impact is visible. For those who would like a bead, we stock what we consider the best-built bead sights (Marbles) on the market. Solid machined steel bases Standard 3/8" dovetails 1/16" (.062") Brass bead Available in 9 heights .260" ~ .570" Non-Returnable unless defective. Height is measured from bottom of dovetail to top of sight. Since these sights are not able to be shortened, please KNOW how tall of a sight you will need prior to ordering. If you need help, please give us a call.