C&H Precision Beretta A300/A400/1301 Optic Mount Plate RMSc

This C&H plate adapts the optic cut on Beretta A300, A400 and 1301 receivers to sights built on the Shield RMSc footprint: the Holosun 407K and 507K, the Holosun EPS Carry, and other micro sights on that pattern. A dot on a shotgun is a speed aid rather than a precision aid, and a small housing keeps the sight picture over the rib uncluttered.

C&H machines its plates to tight tolerances and sets tool steel nuts into them so the mounting screws are not threading into softer material, which matters more under shotgun recoil than it does on a pistol. Mounting hardware is included. Confirm your receiver is actually cut for an optic and that your sight uses the RMSc pattern before you install it.