Ruffs Precision Diving Board Rail Cap Features The Ruffs Precision Diving Board Rail Cap is engineered to be compact and lightweight while remaining compatible with as many optic and accessory combinations as possible. It functions as a direct cap replacement swapping out the factory top piece on CLR series rings and Bravo or Delta cantilevers without requiring any modification to the existing mount. This simple swap gives the shooter a dedicated rail surface for mounting a laser rangefinder or a secondary red dot sight directly above their primary magnified optic. Built from aluminum with a 30mm tube diameter and a high profile it measures 4.9 inches long and 2.5 inches wide for a stable mounting platform. Because the cap screws included with the original RPM ring or cantilever purchase are the exact screws needed for installation there is no hunting for hardware or ordering separate fasteners. This keeps the upgrade straightforward for shooters who already run RPM mounting systems and want to add capability without buying an entirely new mount. At just 0.13 lbs the rail cap adds negligible weight to a rifle setup while still providing a rock-solid attachment point for auxiliary optics. The Ruffs Precision Diving Board Rail Cap is a practical purpose-built solution for shooters looking to pair a rangefinder or red dot with their primary scope for sale at GrabAGun. Ruffs Precision Diving Board Rail Cap Specifications Manufacturer: Ruffs Precision Model: Diving Board Rail Cap Tube Diameter: 30mm Material: Aluminum Length: 4.9 Width: 2.5 Height: High Weight: 0.13 lbs Compatible Hosts: RPM CLR Series Rings RPM Bravo/Delta Cantilevers Available At: GrabAGun