The Wheeler Engineering Armour's Handgun Sight Tool makes installing front and rear pistol sights a breeze. Features include top clamps which add more security to slide positioning, while four independent horizontal positioning clamps hold the slide true and secure. The sight prong assembly is reversible to accommodate Glock slides and the large sight adjustment wheel allows the user to easily make micro sight adjusts. If you are looking to upgrade the sights on your handgun, the Wheeler Engineering Sight Tool is a must have!FeaturesPrecision machined unitDesigned in install, un-install or adjust front and rear dovetail sightsFully captures and supports slide so it won't deformWorks on all semi auto pistolsLarge 4 post drive knob to easily push the sightReference marks for precise adjustments