This rock solid Area 419 diving board brings ultimate functionality to the Tactical One-Piece Scope Mount. The diving board mounts via our patent pending dual taper mounting point on the top of the scope cap, delivering the most secure attachment possible. Useful for items ranging from levels and dope cards to red dots and weapons-mounted laser range finders. The durability and rigidity of this piece are the best in class, making your return to zero that much better. FeaturesStandard Height: 1.11" (1.93" From Optical Center to Top of Rail)Low Height: 0.70" (1.52" From Optical Center to Top of Rail)