Trijicon RMR Sealing Plate – Protect Your Red Dot from the Elements

If you're mounting a Trijicon RMR red dot on your pistol, the sealing plate is a small but essential upgrade. Designed to prevent moisture and debris from getting into the optic’s battery compartment, this stainless steel plate helps ensure your optic stays reliable in all conditions — whether you carry every day, shoot competitively, or run your gun hard at the range.

This is the same waterproofing solution Trijicon recommends for all RMR optic installations on pistols with exposed mounts.

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🔧 What Is an RMR Sealing Plate?

The RMR Sealing Plate sits between your red dot optic and your pistol slide or mounting plate, creating a tight barrier that protects the electrical components from water, oil, carbon buildup, and dust.

Without this plate, even a high-end optic like the RMR is vulnerable to internal failure — especially under real-world carry conditions.

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🛠 Key Features

• Compatible with Trijicon RMR & RMRcc optics

• Made from stainless steel for strength and corrosion resistance

• Designed for use with Trijicon pistol mounts and direct-milled slides

• Thin profile for flush fit — no interference with optic height

• Improves waterproofing (up to 66 feet, per Trijicon testing)

• Made in the USA

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🧠 Why You Should Always Use a Sealing Plate

The Trijicon RMR is tough — but it wasn’t designed to sit directly against the slide without added protection. Recoil, heat, and exposure to the elements can allow water or debris to slip through the mounting area and into the battery compartment.

This sealing plate prevents that from happening by creating a physical block between the optic and your slide. It’s simple, affordable, and adds a layer of durability your optic deserves.

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🔩 Easy Installation

• Place the sealing plate between your optic and the mounting surface

• Use the original Trijicon RMR screws

• Apply blue thread locker

• Torque to Trijicon’s spec (typically 12–15 in-lbs)

• Recheck after your first 200 rounds

Important: Always check your mount and slide for compatibility if you're using aftermarket components.

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🛒 Add to Your Build with Confidence

Whether you're building a duty-grade setup or just want peace of mind, the RMR Sealing Plate is a must-have accessory. It adds zero weight, takes seconds to install, and protects the most critical part of your red dot system.

 

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✅ Frequently Asked Questions (FAQ)

Q: Do I need this sealing plate for my Trijicon RMR?
A: Yes. Trijicon specifically recommends this sealing plate when mounting the RMR to a pistol slide or adapter plate to prevent water or debris from entering the battery compartment.

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Q: Is this plate compatible with RMRcc?
A: Yes — it works with both the standard Trijicon RMR and the RMRcc when mounted using Trijicon-compatible mounts or adapter plates.

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Q: Will this affect my optic height or zero?
A: No. The plate is ultra-thin and fits flush under the optic. It does not interfere with co-witnessing, zeroing, or mounting torque.

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Q: Does this sealing plate come with screws?
A: No. This is the plate only. Use the screws that came with your optic or your mount — and make sure they are the correct length with proper thread engagement.

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Q: Can I use this with aftermarket slides or mounts?
A: It’s designed to work with Trijicon-manufactured mounts. While it may fit some aftermarket systems, always verify compatibility before installation.

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