The SIG Sauer P320 Trijicon RMR Adapter Plate (SIG part no. 1303084-R) lets P320 owners mount a Trijicon RMR-footprint red dot sight directly to an optics-ready P320 slide. Machined to SIG’s factory optic-cut pattern, the plate bridges the gap between the slide’s mounting holes and the RMR footprint without gunsmithing or aftermarket milling. It’s a straightforward way to add a red dot to a carry or duty P320 for faster target acquisition at speed. Owners upgrading a factory-milled P320 slide to a micro red dot get a direct, drop-in fit.

Key Specifications

• Purpose-built Mount plate designed specifically for RMR-footprint optics on the P320 platform.
• Direct fit for SIG P320 optics-ready slides without additional machining.
• Uses factory-matched mounting hardware for a secure, repeatable zero.

Frequently Asked Questions

Will this fit any P320 slide? It is designed for P320 slides milled for the SIG optic-ready cut and Trijicon RMR footprint optics.

Does it work with other RMR-footprint red dots besides Trijicon? Yes, any red dot sharing the RMR footprint pattern will mount using this plate.

Buy the SIG Sauer P320 Trijicon RMR Adapter Plate

Order this adapter plate from our Lubbock, Texas gun shop for fast, insured shipping, and check out the rest of our handgun slides parts to finish your P320 build.