RPM 35mm High Rail Cap Diving Board - Black
$84.99
The RPM 35mm High Rail Cap Diving Board in black is a smart accessory for shooters running magnified optics who want to add secondary aiming devices or rail-mounted lasers to their setup. This simple cap replacement lets you mount a red dot sight or rangefinder on top of your primary scope without the bulk of a traditional riser, keeping your profile compact and your sight picture clean. It's designed to work with RPM's existing lineup—compatible with CLR series rings and all Bravo and Delta cantilever mounts—so if you're already running RPM gear, integration is straightforward.
The genius of the diving board concept is simplicity: it's a direct cap swap using the same screws that came with your original RPM mount. No special hardware, no adapter stack, no learning curve. You pull the existing cap, thread in the diving board, and you're ready to dial in your secondary optic. It's the kind of practical solution that appeals to hunters and long-range shooters who've outgrown single-optic setups but don't want to commit to a full cantilever rail system.
Built by Ruff's Precision Manufacturing, this mount emphasizes the compact, lightweight design philosophy that runs through the RPM product line. Whether you're adding a fast-target red dot for close-range work or a laser rangefinder for precision shots, the diving board gives you the flexibility to layer your optics without unnecessary weight or complexity.
Key Features
- Direct cap replacement—fits all existing RPM CLR series rings and Bravo/Delta cantilevers
- Uses original mount screws for tool-free installation
- Supports secondary red dot sights and rail-mounted laser rangefinders
- Compact, lightweight design keeps overall rifle profile streamlined
- Precision-manufactured for reliable repeatability
Specifications
| Tube Diameter | 35mm |
| Color | Black |
| Manufacturer | Ruff's Precision Manufacturing (RPM Mounts) |
| Type | Rail Cap / Picatinny Adapter |
| Compatible Mounts | RPM CLR series rings, Bravo cantilevers, Delta cantilevers |
Frequently Asked Questions
Will the RPM diving board work with my existing RPM mount?
Yes, this cap is compatible with all RPM CLR series rings and Bravo and Delta cantilever mounts. It replaces your existing cap and uses the screws that came with your original mount.
What secondary optics can I mount with this?
The diving board is designed to accept rail-mounted red dot sights and laser rangefinders. Check your specific optic's rail specifications to confirm fit on the Picatinny-style rail.
Do I need special screws or tools to install it?
No—the cap uses the exact screws included with your original RPM purchase, so installation is straightforward without additional hardware.
Is the diving board heavy?
The RPM product line is engineered for compact, lightweight performance, and the diving board follows that design philosophy to minimize added weight to your rifle.
