The Reptilia ROF(TM) 30mm Diving Board is a purpose-built mounting adapter that brings a MIL-STD-1913 rail to the ideal height and position for 30mm magnified optics. Designed at the request of end users and engineered for professional systems, the Diving Board lets you add laser rangefinders, miniature red-dot optics, or designators without compromising your primary mount or optic. By reusing the host mount's ring cap, it expands the support surface on the optic tube for greater strength and repeatable stability under demanding use. Specifications: Product: ROF(TM) Diving Board - 30mm (Black Anodized) Compatibility: Reptilia(R) AUS(TM) mounts and Geissele(R) Super Precision(TM) mounts only Function: Adds MIL-STD-1913 (Picatinny) rail at optimized height/position for 30mm optics Optic Size: Optimized for 30mm tube diameters and precision magnified optics Mounting: Reuses host mount ring cap to increase optic tube support surface area for superior strength and stability Finish: MIL-SPEC Type III Class 2 hard anodized - black Country of Origin: Designed and manufactured in the USA Notes: Not compatible with other mount families; intended for professional/precision applications Get it at Battlehawk Armory!