Fusion Firearms / LPA Fully adjustable style rear target blade sight assembly. This rear sight is designed in the "low profile" configuration for easy holstering and makes for a great target, combat, or concealment sight. It is a great replacement sight, allowing you to fine tune "Point of impact" to your liking. They are manufactured with precision machined components for fine and positive click adjustments and are fully adjustable for windage and elevation. The dovetail rear sight bases have locking screws which allow for secure retention in the slide dovetail. The rear dovetail is the standard Colt XSE / NVK .495 x 65 degree rear novak compatible sight cut. These sights are available in black, white dot, and fiber optic configurations. These are a direct replacement sights for the popular novak sight cuts used on most modern 1911 style pistols and many others. Ready to install. Will work with most all sizes, makes and models of 1911 pistols and clones with Novak Compatible sight cuts. A Fusion Firearms Pro-Series, Professional Gunsmithing part.