The Honest Truth About the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set
For years, I’ve relied on iron sights as my primary aiming point, a testament to a career spent in environments where technology can fail, but a well-placed front sight post never does. However, the advent of micro red dot sights (MRDS) has undeniably changed the game for pistol optics. My pursuit of a robust, reliable backup sight system that works seamlessly with an RMR on my Glock platform led me to the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set. This combat-optimized set promises a fast, clean sight picture, designed to coexist with an MRDS rather than replace it entirely.
The catalyst for this search was a growing reliance on red dots for faster target acquisition, particularly in dynamic shooting scenarios where milliseconds matter. While my trusty Trijicon RMR performed admirably, I realized the need for a solid set of irons that wouldn’t obstruct my view of the dot and would offer a true co-witness or a usable lower 1/3. The aesthetic appeal, inspired by airframes, was a secondary, albeit welcomed, bonus to the core functionality.
My initial impression upon unboxing was one of solid craftsmanship. Machined from 4140 steel bar stock, these sights exude a no-nonsense, durable feel. The Salt Bath Nitrided finish promises excellent corrosion resistance and surface hardness, a crucial factor for any equipment that will see consistent use. They felt substantial, a far cry from flimsy, stamped alternatives. I’d briefly considered other brands, but their designs often either interfered with the optic’s window or were overly aggressive in their serration, potentially snagging on concealment clothing. The Have Blue sights offered a refined, purposeful aesthetic right out of the box.
My first reaction was a sense of preparedness; finally, a sight set that felt as serious about its role as a backup as my primary optic. It was a quiet confidence, the kind that comes from handling well-made gear.
Real-World Testing: Putting Overwatch Precision Have Blue RMR/MOS Compatible Sight Set to the Test
First Use Experience
My initial testing grounds were the familiar confines of my local indoor range and a private outdoor range known for its varied terrain and less-than-pristine conditions. The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set was mounted on a Glock 19 MOS, a platform I’ve extensively used for training and competition. Installation was straightforward, with the rear sight slotting precisely into the MOS cut and the front sight replacing the factory model.
The real test came during a series of drills designed to simulate rapid target transitions and low-light shooting. With the Trijicon RMR zeroed, I immediately noted how the .395″ high, 0.130″ square-bottomed rear notch and the .390″ tall, 0.105″ wide plain black front sight provided a perfectly usable sight picture, whether my RMR was illuminated or off. The serrations on both the front and rear sights proved incredibly effective at minimizing glare, even under the harsh overhead lights of the indoor range and direct sunlight outdoors. There was no distracting reflection from the sight itself, allowing me to focus solely on the red dot or, when necessary, the clean, defined iron sight picture.
One surprising quirk, albeit a minor one, was the slight difference in how the RMR sat in relation to the irons when using Glock’s MOS system versus a direct-milled slide. While the product states “Lower 1/3 sight picture on Glock’s MOS System,” I found it to be closer to a true co-witness, which, for me, was actually preferable. This meant the RMR dot sat slightly lower in the optic’s window, directly above the front sight post, providing a very intuitive and fast alignment. This proved useful during a low-light scenario where I intentionally powered down the RMR; I could still easily find my sights and make accurate shots, albeit slower.
Extended Use & Reliability
Weeks turned into months, and the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set became a permanent fixture on my Glock. It has endured countless range sessions, casual carry, and even a few accidental drops onto softer surfaces (no concrete yet, thankfully, but definitely enough to test its resilience). The sights have maintained their zero, and more importantly, their crispness. There are no signs of peening on the edges, nor has the Salt Bath Nitrided finish shown any significant wear despite being concealed against clothing and holsters.
Maintenance has been virtually non-existent. A quick wipe-down with a silicone cloth after range days is all that’s required to keep them clean and protected. The set screw on the rear sight provides an excellent secondary lock-up, ensuring it won’t shift under recoil. This is a feature I’ve seen lacking in many aftermarket sights, and its inclusion here speaks to the thoughtful design intended for serious use. Compared to previous experiences with cheaper sights that could develop looseness or sharp edges over time, these Overwatch Precision sights feel built to last.
Breaking Down the Features of Overwatch Precision Have Blue RMR/MOS Compatible Sight Set
Specifications
The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set is constructed from robust 4140 Steel bar stock, a material chosen for its excellent strength-to-weight ratio and durability. The Salt Bath Nitrided finish is a key selling point, providing exceptional corrosion resistance and increased surface hardness. This treatment is a far cry from simple bluing and offers superior longevity in harsh conditions.
The rear sight features a .395″ height and a 0.130″ wide square-bottomed notch. This specific notch width is designed to provide a balance between fast acquisition and precision, allowing for a clean sight picture without being so wide as to sacrifice accuracy at distance. The front sight matches this precision with a .390″ height and a 0.105″ wide plain black blade. These precise dimensions are crucial for achieving the desired sight picture, particularly when co-witnessing with an RMR.
The front sight is secured by a 316 stainless steel sight screw, known for its superior corrosion resistance. The rear sight incorporates a set screw for enhanced security, preventing any potential movement under recoil, a critical feature for reliable performance. The overall design is intentionally combat-optimized, providing a combat hold sight picture that prioritizes speed and clarity.
Performance & Functionality
The primary function of the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set is to provide a reliable aiming solution, either as a primary sighting system or, more commonly, as a backup to an RMR. In this regard, they excel. The combination of the rear notch width and the front sight blade width creates a sight picture that is both fast to acquire and sufficiently precise for target shooting at typical pistol engagement distances. The serrated rear and front sights are a standout feature, effectively mitigating glare that can plague standard sights.
On a Glock MOS system, the sights provide a lower 1/3 co-witness, meaning the RMR dot sits in the upper portion of the optic’s window, with the iron sights occupying the lower third. This is a widely accepted and highly effective sighting plane for red dot-equipped pistols. For direct-milled slides, the product indicates a full co-witness, which is also a valuable option depending on shooter preference. The sight heights are calibrated to work well with common 9mm/.40/.357 family of Glock handguns, aiming for a good Point of Impact (POI) with typical carry ammunition. This thoughtful engineering removes the guesswork often associated with sight height selection.
A significant strength is their ability to maintain a clear sight picture even when the RMR is unpowered or its battery dies. This is the essence of a combat backup sight. The lack of superfluous markings or fiber optics ensures the sights remain unobtrusive, allowing the RMR to be the dominant aiming point when active, yet readily available when needed.
Design & Ergonomics
The design of the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set is both functional and aesthetically pleasing, with a clear nod to aviation-inspired themes. The all-black finish is sleek and non-reflective, contributing to their low-profile appearance. The edges of the rear sight are not overly sharp, a welcome detail that prevents snagging on clothing during concealed carry or during weapon manipulations, a common pitfall with aggressively designed sights.
Ergonomically, they are designed for rapid sight acquisition. The square-bottomed rear notch helps the shooter quickly center the front post. The choice of 4140 steel provides a solid, reassuring feel in hand and on the firearm. The serrated surfaces are aggressive enough to grip without being abrasive to the touch.
The inclusion of a set screw on the rear sight adds a layer of security and peace of mind that is often overlooked by manufacturers. This simple addition significantly enhances the durability and reliability of the sight’s position, even under heavy recoil. The combat hold sight picture they provide is intuitive and fast, allowing for quick alignment without conscious effort.
Durability & Maintenance
Built from 4140 steel and treated with a Salt Bath Nitride finish, the durability of these sights is a key selling point. This finish is renowned for its hardness and resistance to wear and corrosion, making it an ideal choice for firearms components that are subjected to the elements and friction. I’ve seen similar finishes stand up to years of hard use without significant degradation.
Maintenance is minimal. A light application of oil or a wipe with a silicone cloth is sufficient to keep them protected. The inherent corrosion resistance of the nitrided finish means that minor scratches or scuffs are less likely to lead to rust compared to blued or parkerized finishes. The design itself is robust; there are no delicate moving parts beyond the set screw, which is well-protected once installed. Potential failure points are minimal; the primary concern would be extreme impact damage, but the stout construction mitigates this risk considerably.
Accessories and Customization Options
The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set comes as a pair, including a front and rear sight, and the necessary 316 stainless steel sight screw for the front sight. There are no other included accessories, as this is a component part designed to integrate with an existing firearm and optic.
Customization options are limited to the sight set itself; they are not designed to accept interchangeable elements like fiber optic inserts. However, their compatibility is broad within the RMR-mounting ecosystem. They are specifically designed to work with optics like the Trijicon RMR and similar footprint red dot sights mounted on Glock MOS systems or directly milled slides. The gun make compatibility is specific to Glock, but the sight pattern itself is a standard size for many pistol applications.
The value lies in their direct application and their intended function rather than modularity. The all-black color is a deliberate design choice to minimize visual clutter and maximize focus on the aiming point.
Pros and Cons of Overwatch Precision Have Blue RMR/MOS Compatible Sight Set
Pros
- Robust Construction: Machined from 4140 steel bar stock and finished with a durable Salt Bath Nitride for exceptional corrosion resistance and hardness.
- Optimized Sight Picture: The carefully selected heights and widths of the front and rear sights create a fast and precise combat hold sight picture, ideal for co-witnessing with an RMR.
- Glare Reduction: Serrated front and rear sights effectively minimize distracting reflections, allowing for faster sight acquisition.
- Secure Installation: The front sight screw and the rear sight’s set screw ensure the sights remain firmly in place under recoil.
- Concealment Friendly: The edges are designed to be not overly sharp, reducing the risk of snagging on clothing during concealed carry.
Cons
- Limited Compatibility: Primarily designed for Glock pistols with RMR-footprint optics, limiting its application on other firearm makes or with different optic types.
- No Customization: Lacks the ability to swap components like fiber optics, which might be a preference for some shooters seeking specific visual cues.
Who Should Buy Overwatch Precision Have Blue RMR/MOS Compatible Sight Set?
The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set is an excellent choice for Glock owners who are running, or plan to run, an RMR-footprint red dot sight on their pistol. This includes competitive shooters, law enforcement officers, and responsible armed citizens who prioritize a reliable backup sighting system. If you value durability, a clean sight picture, and a product designed for serious use, these sights are a strong contender.
Those who should probably skip this product are individuals who do not use Glock handguns or do not plan to mount an RMR-style optic. If you prefer highly customizable sights with interchangeable elements like fiber optics, you might find these too minimalist. For users who need extreme close-quarters precision at very long pistol ranges, there might be sight combinations with narrower notches or different height profiles available, though these Overwatch Precision sights are more than capable for standard defensive and competition distances.
For those who do purchase these sights, ensure your RMR is properly torqued and that you understand the expected sight picture (co-witness or lower 1/3) for your specific slide cut (MOS or direct mill).
Conclusion on Overwatch Precision Have Blue RMR/MOS Compatible Sight Set
The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set delivers precisely what it promises: a combat-optimized, durable, and functional backup sight solution. Its blend of robust materials, thoughtful design, and practical features makes it a standout option for Glock users integrating red dot sights. The 4140 steel construction and Salt Bath Nitrided finish speak to a commitment to longevity, while the carefully calibrated sight dimensions ensure a fast and reliable aiming experience.
At $66.95, the value proposition is exceptional. You are getting a pair of high-quality, purpose-built sights that perform admirably as both a primary iron sight system and a crucial backup. They integrate seamlessly with RMR optics, offering a clean sight picture and excellent glare reduction thanks to their serrated surfaces. The inclusion of a set screw for the rear sight is a small detail that significantly enhances reliability under stress.
I would wholeheartedly recommend the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set to any Glock owner seeking a dependable and well-crafted iron sight solution to complement their red dot optic. They strike an excellent balance between performance, durability, and price, making them a wise investment for anyone serious about their firearm’s sighting system.