RPM Diving Board 35mm High Rail Cap

Sized for 35mm tubes and cut at the high height, this RPM rail cap turns the top of an existing mount into a Picatinny platform. It is a straight cap replacement on the CLR series rings and on the Bravo and Delta cantilevers, and it uses the screws already sitting in the mount, so the swap takes a hex key and a couple of minutes.

A 35mm tube usually means a rifle already set up to shoot at distance, and that is exactly the rifle that ends up wanting a rangefinder within reach of the firing hand. Mounting the rangefinder or a secondary red dot here keeps the setup narrow, keeps the weight on the centerline, and puts the second device where the eye already is rather than off to one side.