The Rubicon Precision Manufacturing RPM 30mm Low Rail Cap Diving Board Black is a compact accessory rail cap designed to extend a short Picatinny section out over your scope. Swapping directly in place of the standard top cap on compatible 30mm RPM rings and cantilever mounts, it creates a clean, rigid mounting point for a small red dot or rail-mounted laser rangefinder without adding bulk to the rifle.

This low-height Diving Board keeps added optics close to the bore line while preserving clearance around your primary magnified optic. It is purpose-built to fit all current RPM CLR series rings and Bravo/Delta cantilevers, using the original cap screws for straightforward installation. Ideal for shooters who want a secondary aiming solution or compact accessory on their precision or general-purpose rifle, it reflects Rubicon Precision Manufacturing’s focus on thoughtful design and careful machining.

Key Features:

• Manufacturer: Rubicon Precision Manufacturing
• Model: RPM 30mm Low Rail Cap Diving Board Black
• Ring & Mount Tube Diameter: 30mm
• Ring & Mount Height: Low
• Ring & Mount Type: Accessory Rail Cap
• Ring & Mount Finish: Black
• Material: 6061-T6 Aluminum
• Compatibility: Fits RPM CLR series rings and Bravo/Delta cantilever mounts
• Intended Use: Mounting secondary red dots or rail-mounted laser rangefinders over a magnified optic