The Rocky Mountain Driver 1-Pin with a Dovetail Mount features one fully captured .019 fiber pin and a built in light adaptor. This sight also offers tool free, micro adjust windage and elevation and adjustable 2nd and 3rd axis adjustments. The all aluminum construction has laser etched windage and elevation marks and an adjustable reset block. The reset block allows for a quick return to your first yardage mark. Radial arc elevation adjustments keep the bezel square to your eye as you adjust to different yardages.