SIG P320 TRIJICON RMR ADAPTER PLATE

Description

The Sig Sauer Trijicon RMR/SRO Sealing Plate Kit gives P320 X-Series owners a factory-engineered path to mounting a Trijicon RMR or SRO directly to their slide without relying on third-party adapters. The X-Series slide is cut to accept this plate, and the sealing plate fills the gap between the optic’s footprint and the slide’s pocket, protecting the internals from debris and moisture that would otherwise have a direct route in through an uncovered cutout.

Installation requires a 2mm hex wrench to drive the included screws, keeping the torque precise and avoiding stripped fasteners on a part that sits close to the bore axis where heat and recoil concentrate. Using the correct tool size matters here — undersized drivers walking around inside a small socket head are a common source of damaged hardware on optic mounts.

This is a Sig Sauer factory part, so the fit to X-Series slides is designed to the same tolerances as the original slide machining. If your P320 is not an X-Series variant, confirm your slide’s optic cut before ordering, as the X-Series footprint is specific to that platform. The kit ships complete with the hardware needed for the installation, so no separate screw sourcing is required.