RPM 34mm High Rail Cap Diving Board Optic Mount

Mounting a rangefinder or a secondary red dot on the receiver rail eats space you may not have, particularly on a rifle running a long cantilever mount or a night vision device. RPM’s answer is to move that accessory onto the scope itself: this cap replaces the top half of a 34mm ring and carries a short Picatinny rail across the tube.

High rail height in a black finish. Fitment spans RPM’s CLR series rings and the Bravo and Delta cantilever mounts. The high version buys the extra room a bulkier accessory body needs above the tube. Installation is a cap swap, which means the ring tops come off, so recheck scope level and cap torque before you trust the zero.