Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ Review

First Thoughts on the Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″

The Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ represents a crucial bridge between cutting-edge red dot optic technology and the reliable, time-tested iron sights many of us grew up with. Trijicon’s reputation precedes it, promising ruggedness and precision. This mount is designed to elevate your Trijicon RMR or SRO to a height that allows for a full co-witness with your backup iron sights, meaning both aiming systems are aligned.

After countless hours shouldering various AR platforms, I’ve always valued the ability to quickly transition between optics and iron sights. I needed a mount that would securely hold my RMR, allow for rapid removal if necessary, and most importantly, not compromise my iron sight picture. The promise of a quick-release system combined with a full co-witness height was a major draw.

My first impression upon unboxing the mount was the solid feel of the 7075 aluminum. The black finish was clean and even, speaking to Trijicon’s commitment to quality. It felt significantly more robust than some of the cheaper mounts I’ve handled over the years.

Several other mounts were considered. A few lower-priced options were tempting, but their questionable durability and lack of a true quick-release mechanism deterred me. Another mount from a different manufacturer offered a similar height, but the reviews mentioned difficulty in achieving a perfect co-witness. I ultimately chose the Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ for its proven track record and the Trijicon name.

Initially, I was excited by the prospect of a reliable, no-compromise mounting solution for my RMR. I was also slightly apprehensive about the “quick release” mechanism; often, these systems introduce unwanted wobble or shift zero under heavy use. However, Trijicon’s reputation for quality gave me confidence.

Real-World Testing: Putting Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ to the Test

First Use Experience

The first test for the Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ was at my local shooting range, mounted on my AR-15. I wanted to evaluate its zero retention and the ease of transitioning between the RMR and iron sights. The weather was typical for late summer: hot and humid.

Performance was immediately impressive. The mount held the RMR securely, even after several magazines of rapid fire. The full co-witness was perfect with my Magpul MBUS Pro flip-up sights, placing the red dot neatly at the top of the front sight post. The quick release lever was easy to manipulate, even with gloves on.

The only surprise was how quickly I adapted to the full co-witness setup. I had initially expected the iron sights to clutter my field of view while using the RMR, but they proved to be minimally intrusive and quickly forgotten until needed.

Extended Use & Reliability

After three months of regular use, including several range trips and a carbine course, the Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ continues to perform flawlessly. There are no signs of wear and tear beyond minor cosmetic scratches from handling. The quick release lever remains tight and secure, with no detectable wobble or shift in zero.

Maintenance has been minimal. A simple wipe-down with a lightly oiled cloth after each use is all it takes to keep the mount looking and functioning like new. This simple upkeep is a testament to Trijicon’s commitment to quality.

Compared to previous mounts I’ve used (mostly cheaper, generic options), the Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ is in a different league. Cheaper mounts often loosen over time, require constant re-tightening, and rarely offer a true co-witness. This Trijicon mount is a buy-once-cry-once solution that delivers on its promises.

Breaking Down the Features of Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″

Specifications

• Type: Optic Mount. This dictates its primary function: securely attaching an optic to a firearm.
• MFG/Model: RMR/SRO Quick Release Full Co-Witness Mount. This specifies compatibility with Trijicon RMR and SRO optics.
• Style: Full Co-Witness. This means the optic and iron sights align in the same field of view.
• Finish: 7075 Aluminum. The strong and lightweight construction ensures durability without adding unnecessary weight.
• Height: 1.80″. This elevates the optic to achieve a full co-witness with standard-height iron sights.

These specifications matter because they directly impact the mount’s performance, durability, and compatibility. The 7075 Aluminum ensures it can withstand the rigors of regular use. A full co-witness allows for seamless transition between aiming systems.

Performance & Functionality

The Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ excels at its primary job: providing a stable and repeatable mounting platform for the RMR or SRO. Zero retention is excellent, even after repeated removal and re-installation. The quick release mechanism is fast and easy to use, making it simple to switch between optics and iron sights as needed.

The mount’s strength lies in its simplicity and reliability. Its only potential weakness could be the height for those who prefer lower profile setups, but this is inherent to achieving the full co-witness. It meets and exceeds expectations for a high-quality optic mount.

Design & Ergonomics

The Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ is designed for functionality above all else. The 7075 aluminum construction provides a balance of strength and weight. It feels solid and well-made.

The quick release lever is ergonomically designed for easy manipulation. There’s virtually no learning curve. It’s intuitive and straightforward to use.

Durability & Maintenance

Constructed from 7075 aluminum, the Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ is built to last. The black anodized finish provides excellent corrosion resistance. This ensures years of reliable service.

Maintenance is minimal. A quick wipe-down after use is all that’s required. This keeps the mount clean and functioning properly.

Accessories and Customization Options

The Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″ does not come with any accessories beyond the necessary mounting hardware. Its primary function is to interface with a Trijicon RMR or SRO and a Picatinny rail. The primary customization option is the choice of compatible iron sights to achieve the desired co-witness.

The mount is designed to be compatible with any standard Picatinny rail and any Trijicon RMR or SRO footprint optic. The full co-witness is designed to work with standard-height AR-15 iron sights, like Magpul MBUS or similar.

Pros and Cons of Trijicon RMR Quick Release Full Co-Witness Mount Black 1.80″