Troy rear fixed battlessight - Troy Top Mounted Deployable Rear Sight

The Troy Rear Fixed BattleSight is probably my favorite fixed rear sight. It is a robust, stable and secure platform. The windage knob is flush with the outside of the sight, making it less likely to get moved. The apertures are same-plane so there is not a shift in zero when changed. Installation is easy. Remove the tensioning bolt, slide it on from the rear, and install tensioning bolt in the first Picatinny slot and tighten the bolt. The Troy Front Fixed Battlesight HK style is a good mate for a front sight. Priced right for a metal sight.