LPA SPL Fully Adjustable Luminova Night Sight Set For Glock 17-41 Black. This is direct replacement sight for the fixed sight models. The 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 sigh allowing you to fine tune the "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. High quality steel construction. Includes sights & wrenches. The Luminova compound is installed at laboratories in Switzerland and makes for a very bright and well-defined night sight. Much more clear / defined and brighter than any tritium products and lasts decades longer. The sealed ceramic phosphorus compound is the same that is used on aircraft dashboards and other critical applications needing light emitting compounds. In addition the compound is also easily seen in all lighting conditions and gives you a defined Specifications for LPA SPL Fully Adjustable Luminova Night Sight Set: Manufacturer: LPA Color: Black Fabric/Material: Solid Steel Gun Type: Pistol Attachment Type: Low Profile Included Accessories: Includes sights and wrenches Package Contents: LPA SPL Fully Adjustable Luminova Night Sight Set LPA SPL16GL: SPL Fully Adjustable Luminova Night Sight Set For Glock 17-41 Black