C&H PLT 320X W/RXP ROMEO1 P TO RMR

Description

The C&H Precision SGRX-RSH-FIL is a filler plate designed for shooters who want to run a Trijicon RMR, SRO, or compatible footprint optic on a SIG P320 slide that was originally cut for the ROMEO1 Pro — the dual-cut slides found across the RX, RXP, and X Series lineup. The slide’s factory cut accepts the ROMEO1 Pro’s footprint, but that opening is larger than an RMR-pattern optic’s mounting footprint. Without a plate like this one, that gap goes unsupported, leaving the optic to bear recoil forces on its own screws rather than transferring them into the slide. The SGRX-RSH-FIL fills the ROMEO1 Pro portion of the dual cut, presenting a clean RMR-footprint surface so the optic seats flush and the slide shoulders recoil load properly.

Compatibility extends beyond the RMR itself — the plate also supports the Trijicon SRO and several Holosun options sharing the same footprint, including the 407C, 507C, 507 Comp, and 508T. C&H Precision recommends dry-fitting all components before final installation, since tolerances across different slide generations and optic batches can affect how hardware seats. Screw length may need minor adjustment depending on the specific combination of hardware and optic. Iron sight height is worth verifying before committing to a final setup, as the plate adds height between the slide and optic. If your rear sight is retained in the same dovetail used by the factory plate, it should remain serviceable, but the co-witness height will depend on your specific slide cut and whichever optic you mount.