With the new Weaver Tactical Flat Top Riser Rail Flat top AR-15, gun owners have the option to mount Aimpoint Micro-style sights. This rail is constructed out of aircraft-grade 6061-T6 aluminum, and the finished product is coated with type-III anodizing hard coat that is designed to endure wear and tear. The rail is engineered to offer optimal mounting height for any and all ring and optic combinations. This product can be found in quick detach or standard models, adding an average of a half-inch of height to your base.