Ruffs Precision 35mm High Rail Cap - Black

The Ruffs Precision 35mm High Rail Cap - marketed by RPM as the "Diving Board" - is a precision-machined replacement cap that drops into any existing Ruffs Precision setup, converting it into a hybrid mounting platform. By swapping the standard cap screw on an RPM ring or bridge, the cap adds a top-mounted Picatinny rail on a 35mm tube so you can stack a laser rangefinder or a secondary red dot on top of your magnified optic for fast close-to-long-range transitions.

The 35-HRC cap is a direct fit for the entire RPM ecosystem: it replaces the cap screw on the CLR series scope rings as well as all Bravo and Delta cantilever mounts, so no other modifications are required. The cap measures 5" in length and is finished in Black.

Ruffs Precision Manufacturing (RPM) is an American maker known for high-quality scope rings and mounting accessories with integrated co-linear bubble levels for the precision rifle community. The 35mm High Rail Cap carries the same build quality and is Made in the USA.