RPM Diving Board 30mm Low Rail Cap

RPM calls this one the Diving Board, and the name fits: it is a top cap that carries a short Picatinny rail out over the scope. Swap it for the existing cap on a 30mm RPM ring set or cantilever and there is suddenly a place to mount a secondary red dot, without bolting an offset mount to the handguard.

This is the low height version. Installation uses the cap screws that came with the original mount, so nothing extra is needed at the bench. RPM keeps the cap compact and light so it clears as many optic and accessory combinations as possible, and it fits the full current RPM lineup, including the CLR series rings and both the Bravo and Delta cantilevers.