Trijicon RMR / SRO Footprint

Trijicon RMR / Holosun 507C Red Dot Mounts

Quick Check: These mounts fit the Trijicon RMR, SRO, Holosun 407C / 507C, and Olight Osight.
(They do NOT fit the Trijicon RMRcc or Holosun "K" Series).

Choose the trusted, American-made Trijicon RMR mount for your pistol. Our red dot adapter plates provide a rock-solid platform for your optic, creating the essential base for absolute precision and reliability.

We stand behind every part we make with a lifetime of service. An EGW optic plate is the last mount you'll ever need. We manufacture our industry-leading mounts for hundreds of firearm models including Glock, CZ, Sig Sauer, and more. Explore our most popular collections below.

Shop RMR Mounts by Firearm Brand

Glock

Find the perfect Trijicon RMR plate for your Glock, ensuring a secure fit and optimal sight picture.

Sig Sauer

Upgrade your Sig Sauer with our precision-machined mounts for Trijicon, Holosun, and other RMR-spec optics.

Smith & Wesson

Get a rugged, reliable mounting plate for your S&W M&P, Shield, and other popular models.

Don't see your brand? We manufacture plates for dozens of other firearm manufacturers including CZ, Kimber, Ruger, Springfield, and more. Use the "Filter By" options on the left to find the exact mount for your firearm.

Trijicon RMR & Holosun Compatibility Guide
Quick Check: These mounts fit the Trijicon RMR, SRO, Holosun 507C, and the new Olight Osight.
They do NOT fit the Trijicon RMRcc or Holosun "K" Series.

The Trijicon RMR footprint is the gold standard for pistol-mounted optics, trusted by law enforcement and competitive shooters worldwide. However, with so many red dot models on the market, knowing which one fits your EGW mount can be confusing. We have compiled the definitive compatibility list below.

✅ Confirmed To Fit (RMR Footprint):
  • Trijicon: RMR (Type 1 & 2), SRO, RCR (Enclosed)
  • Holosun: 407C, 507C, 507C X2, 508T, 507 Comp
  • Olight (Osight): Osight (Standard), Osight X, Osight XR, Osight C
    (Note: Osight "S" and "K" are too small and do not fit)
  • Cyelee: Wolf Pro, Wolf X Pro, Wolf 2, Wolf 2-G
  • Swampfox: Liberty, Justice, Kingslayer, Justice II
  • Viridian: RFX35 (Green Dot)
  • Riton: X3 Tactix PRD, X3 Tactix PRD 2
  • Vector Optics: Frenzy 1x22x26
❌ Does NOT Fit (Requires Different Mount):
The EGW Advantage: Why 7075 Aluminum?

While a universal optic plate might seem versatile, they often lead to a compromised fit. We believe in building parts that last a lifetime.

Every EGW optic plate is CNC machined from ultra-strong 7075 T6 billet aluminum in our Pennsylvania facility. We choose 7075 aluminum for its superior strength and rigidity—it provides the strength of steel at a fraction of the weight.

This ensures maximum durability under the harshest recoil, guaranteeing your mount remains dimensionally perfect and free from the hidden stresses found in cheaper, cast plates.

  • Precision CNC Machining: Guarantees a perfect fit for both your slide and your red dot sight.
  • Type III Hardcoat Anodizing: Delivers a rugged, non-reflective matte black finish that protects against corrosion and wear.
  • Torque Specs: We recommend tightening the screws to 15 in/lbs and using a small amount of Blue Loctite.
Common Fitment Questions

Will this fit a Trijicon RMRcc?
No. The RMRcc (Ruggedized Miniature Reflex for Concealed Carry) has a unique, narrower footprint designed for slimline pistols. It requires a specific adapter plate made exclusively for the RMRcc footprint.

What is the difference between RMR and RMSc footprints?
The Trijicon RMR footprint is the full-size standard with two large recoil lugs. The RMSc (Shield Standard) is a micro-optic standard for slimline pistols. They are not cross-compatible.

Does this include mounting hardware?
Yes. Each mount includes the necessary high-quality 6-32 Torx® head screws for a secure installation.