Forward Controls Design OPF-P320 RMR Optics plate for SIG P320

Forward Controls Design OPF-P320 Trijicon RMR Optics plate for SIG P320

Developed through a collaboration between Forward Controls Design and TangoDown, this steel adapter plate is purpose-built for shooters who prioritize durability, repeatable zero, and duty-grade reliability.

Unlike lightweight aluminum alternatives, the OPF-P320 is machined from rugged 4140 steel and finished with a Melonite coating—ensuring exceptional resistance to wear, corrosion, and recoil stress. Designed as a true drop-in solution, it provides a secure interface for RMR optics while maintaining precise alignment and long-term performance under heavy use.

Built specifically around the Trijicon RMR footprint, this plate ensures optimal fitment and reliability with compatible optics like the RMR, RMR HD, and RCR. Whether you're setting up a defensive handgun or a hard-use duty pistol, the OPF-P320 gives you the confidence of a mount that won’t shift, fail, or compromise your zero.

4140 Steel Construction
Superior strength and durability compared to aluminum plates for long-term reliability.

Melonite Finish
Enhances corrosion resistance and surface hardness for extended service life.

RMR Footprint Compatibility
Designed specifically for Trijicon RMR-pattern optics including RMR HD and RCR.

Precision Fitment
Ensures proper alignment and secure mounting for consistent zero retention.

Drop-In Installation
Direct replacement design for compatible SIG P320 slides.

Steel-on-Steel Interface
Optimized for use with steel screws to reduce wear and increase durability.

Duty-Ready Design
Built to handle recoil, hard use, and demanding environments.

Made in the USA
Manufactured with strict quality standards.

Specifications

• Platform Compatibility: SIG P320 (with independent rear sight and removable optics plate only)
• Optic Footprint: Trijicon RMR pattern
• Material: 4140 steel
• Finish: Melonite (nitride treated)
• Mounting Type: Drop-in / direct fit
• Torque Specification: 13–15 in-lbs (T15 6-40 x 9/16 screws)
• Sealing Plate Requirement: Required for RMR (not required for RMR HD, RCR, SRO)
• Compatibility Notes:
  • Not compatible with SIG M17/M18 or P320 models with integrated rear sight/optic plate
  • Not compatible with Holosun optics using RMR footprint
  • Requires specific slide cut geometry (not compatible with straight-cut front pockets)
• Modification Capability: Can be modified for SIG P226 optics-ready slides (tabs must be removed)
• Country of Origin: USA