SIG SAUER Trijicon RMR/SRO Sealing Plate Kit Review

What Makes the SIG SAUER Trijicon RMR/SRO Sealing Plate Kit Click?

The SIG SAUER Trijicon RMR/SRO Sealing Plate Kit isn’t the sexiest piece of gear, but it’s absolutely critical for a secure and reliable red dot sight installation on your SIG pistol. Manufactured by SIG SAUER, this kit bridges the gap between your Trijicon RMR or SRO optic and your XSeries slide. It provides the necessary sealing and proper screw interface for a rock-solid setup.

I recently acquired a Trijicon RMR for my P320 XCompact, and quickly realized I needed a sealing plate to ensure proper optic fitment and prevent moisture from creeping in. Without a sealing plate, the RMR could shift under recoil, losing zero and potentially damaging both the optic and the slide. This kit promised a straightforward solution.

Upon unboxing, the kit appeared simple yet well-made. The plate itself is a small, black piece of metal, but feels robust and precisely machined. The included screws looked to be of good quality, addressing the potential thread depth issues I’d read about online. My initial impression was that SIG SAUER had put together a no-nonsense solution designed for reliability.

I considered a few other options, including aftermarket plates from companies like C&H Precision. I chose the SIG SAUER kit because I wanted a product specifically designed and warranted by SIG SAUER for my pistol. Plus, a previous reviewer had a bad experience with fitment on a P320 AXG with one of the other brands. I was excited to get my RMR properly mounted and tested.

Real-World Testing: Putting SIG SAUER Trijicon RMR/SRO Sealing Plate Kit to the Test

First Use Experience

My first experience with the SIG SAUER Trijicon RMR/SRO Sealing Plate Kit involved installing it on my P320 XCompact. I took it to an indoor shooting range to zero the RMR and test the setup. The installation process was relatively straightforward, requiring only a 2mm wrench.

Performance at the range was immediately improved compared to the initial, un-sealed RMR install. The RMR felt much more securely mounted and didn’t shift during repeated firing of 124 grain 9mm rounds. There were no issues encountered, and the optic retained its zero through several magazines.

Extended Use & Reliability

After several range trips and approximately 500 rounds fired, the SIG SAUER Trijicon RMR/SRO Sealing Plate Kit continues to perform flawlessly. There are no signs of loosening or wear on the plate or screws. Cleaning is simple, requiring just a quick wipe down with a cloth and some CLP.

Compared to previous setups on other firearms, the SIG SAUER kit provides a noticeably more solid and confidence-inspiring optic mount. I fully trust this set up for competition and carry. The peace of mind knowing the optic is secure and sealed is invaluable.

Breaking Down the Features of SIG SAUER Trijicon RMR/SRO Sealing Plate Kit

Specifications

• The SIG SAUER Trijicon RMR/SRO Sealing Plate Kit adapts Trijicon RMR/SRO optics to SIG SAUER XSeries slides. It fills the gap under the optic and over the slide cut for proper fitment and sealing.
• Color: Black, providing a clean and unobtrusive look. This blends in seamlessly with most SIG SAUER pistol finishes.
• Gun Make: Designed specifically for SIG SAUER pistols, ensuring proper fit and compatibility. This is a key advantage over universal plates.
• Gun Type: Pistol, optimized for handgun applications. It’s not intended for rifles or other firearms platforms.
• Fit: Trijicon RMR/SRO, designed to work specifically with these two popular red dot sights. Verify your optic before purchasing.
• Wrench Size: A 2mm wrench is needed to tighten/remove the included screws, making installation simple with common tools. Always use the correct size wrench to prevent stripping the screw heads.

Performance & Functionality

The SIG SAUER Trijicon RMR/SRO Sealing Plate Kit performs its job admirably, providing a secure and waterproof mounting solution. The plate eliminates the gap between the optic and slide, preventing debris and moisture from entering and causing corrosion or malfunctions. The screws included are sized correctly for the XSeries slides, ensuring proper thread engagement without bottoming out.

The kit’s strength lies in its simplicity and effectiveness. It perfectly addresses the common issue of ill-fitting RMR/SRO optics on SIG SAUER pistols. However, one user review indicated that this kit does not fit the P320 AXG.

Design & Ergonomics

The SIG SAUER Trijicon RMR/SRO Sealing Plate Kit is designed for functionality over aesthetics. The black finish is durable and blends seamlessly with the slide. It adds minimal weight to the pistol and doesn’t interfere with handling or holster compatibility.

The design is user-friendly, with straightforward installation requiring only a 2mm wrench. There is no need for any specialized tools or gunsmithing experience. The kit promotes a clean and functional end result, improving the overall shooting experience.

Durability & Maintenance

The materials used in the SIG SAUER Trijicon RMR/SRO Sealing Plate Kit appear to be of high quality and are well-suited for the rigors of firearm use. The plate is likely made from steel or a hardened aluminum alloy, providing excellent durability and corrosion resistance. With proper care and maintenance, it should last for many years.

Maintenance is simple. Just clean the plate and screws periodically with a cloth and apply a small amount of oil or CLP to prevent corrosion. Regular inspection for any signs of loosening is also recommended.

Accessories and Customization Options

The SIG SAUER Trijicon RMR/SRO Sealing Plate Kit is primarily a functional component, not a customization item. It does not offer extensive accessory options beyond the included screws.

However, it is essential for utilizing aftermarket Trijicon RMR or SRO optics on SIG SAUER XSeries pistols. It can improve the performance and reliability of other aftermarket accessories that depend on a properly mounted red dot. Remember to confirm that the mounting screws that come with the RMR/SRO are the correct thread and length before installing.

Pros and Cons of SIG SAUER Trijicon RMR/SRO Sealing Plate Kit

Who Should Buy SIG SAUER Trijicon RMR/SRO Sealing Plate Kit?

This kit is perfect for SIG SAUER XSeries pistol owners who want to install a Trijicon RMR or SRO red dot sight. It is also ideal for competitive shooters and concealed carry practitioners who demand a reliable and durable optic mounting solution. Anyone prioritizing the SIG SAUER warranty and brand reputation will find value in this kit.

Those who should skip this product are owners of SIG SAUER pistols other than the XSeries, unless explicitly confirmed as compatible. Also, budget-conscious individuals may explore cheaper aftermarket alternatives, but potentially at the cost of guaranteed fitment and reliability.

Must-have accessories include a 2mm wrench for installation and thread locker (such as Loctite) to ensure screws remain secure. Consider a quality torque wrench to avoid over-tightening the screws.

Conclusion on SIG SAUER Trijicon RMR/SRO Sealing Plate Kit

The SIG SAUER Trijicon RMR/SRO Sealing Plate Kit is a critical component for anyone mounting a Trijicon RMR or SRO optic on their SIG SAUER XSeries pistol. While not the flashiest upgrade, its importance in ensuring a secure, reliable, and weatherproof optic mount cannot be overstated. The price may be slightly higher than some aftermarket options, but the peace of mind that comes with a SIG SAUER product is well worth the investment.

I would absolutely recommend this kit to anyone looking to properly mount their RMR or SRO on a compatible SIG SAUER pistol. Don’t risk damaging your optic or losing zero with a subpar mounting solution. Invest in the SIG SAUER Trijicon RMR/SRO Sealing Plate Kit and enjoy a reliable and accurate shooting experience.