Overwatch Precision Have Blue RMR/MOS Compatible Sight Set Review

Table of Contents

First Impressions of Overwatch Precision Have Blue RMR/MOS Compatible Sight Set

The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set promises a streamlined, combat-ready backup sighting system for Glock pistols equipped with red dot optics. Overwatch Precision designed these sights to work in conjunction with an RMR, offering rapid target acquisition without sacrificing precision. I’ve spent years struggling to find the perfect backup sight that doesn’t obscure my red dot or require a complex sight picture, so I was eager to see if these could finally be “the ones”.

I was looking for a set of sights that could provide a clear sight picture in a “lower 1/3 co-witness” configuration when using a red dot, meaning the iron sights sit in the lower portion of the optic’s window. This allows for an unobstructed red dot view while still providing a reliable backup in case the optic fails or the battery dies. I wanted something durable, low-profile, and easy to acquire under stress.

Upon unboxing, the first thing I noticed was the clean, minimalist design and the solid feel of the 4140 steel. They exude quality and purpose. Compared to some other backup sight options I’ve used – namely, Trijicon Bright & Tough and Ameriglo Defoor sights – the Overwatch Precision sights seemed to strike a better balance between low profile and ease of acquisition. They appeared less bulky than the Trijicon sights, and easier to see than the Ameriglo sights. Initial impressions were definitely positive, and I was excited to get them installed and tested.

Check Best Price HERE

See on GunMagWarehouse

Real-World Testing: Putting Overwatch Precision Have Blue RMR/MOS Compatible Sight Set to the Test

First Use Experience

I tested the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set at my local outdoor range. The range offers a variety of shooting distances and scenarios, including shaded and brightly lit areas, making it ideal for evaluating sight performance. I primarily tested them on my Glock 19 MOS with a Trijicon RMR.

The initial testing was performed in bright daylight conditions. The serrations on the rear and front sights significantly minimized glare, providing a clear sight picture. Acquisition was indeed fast, and the lower 1/3 co-witness with the RMR was perfect, not obstructing the red dot at all.

Extended Use & Reliability

After several months of use, including weekly range trips and a couple of force-on-force training sessions, the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set has held up remarkably well. The Salt Bath Nitriding finish shows no signs of wear, even after repeated draws from a Kydex holster. Maintenance has been minimal; a quick wipe down with a silicone cloth after each range session keeps them clean and rust-free.

Compared to other sights I’ve used, the durability and consistent sight picture of these sights are a definite step up. They have consistently delivered a reliable backup sighting system and have become a trusted part of my EDC setup. No loosening or movement has occurred, thanks to the rear sight set screw.

Breaking Down the Features of Overwatch Precision Have Blue RMR/MOS Compatible Sight Set

Specifications

Manufacturer: Overwatch Precision
Gun Make: Glock
Color: Black
Fabric/Material: 4140 Steel
Gun Type: Pistol
Rear Sight Height: .395″
Rear Sight Notch Width: 0.130″ square-bottomed
Front Sight Height: .390″
Front Sight Width: 0.105″
Finish: Salt Bath Nitrided

These specifications are critical for several reasons. The 4140 steel provides exceptional strength and durability, essential for sights that may encounter rough handling. The sight heights ensure proper co-witness with RMR optics on standard Glock slides, and the Salt Bath Nitriding creates a tough, corrosion-resistant surface.

Performance & Functionality

The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set performs exceptionally well. Accuracy is excellent, with consistent groups achievable when using the iron sights alone or in conjunction with the RMR. Reliability is top-notch, with no shifting or loosening observed during extensive testing. The plain black sights offer a distraction-free sight picture, allowing the shooter to focus on the target.

A key strength of these sights is their design for rapid target acquisition. The serrations on the front and rear sights greatly reduce glare. The fact that it utilizes a “combat hold” sight picture is also notable; the point of impact is directly behind the front sight. The only potential weakness is the lack of tritium inserts for low-light shooting, which might be a concern for some users.

Design & Ergonomics

The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set features a clean, minimalist design. The build quality is outstanding, with precise machining and a durable finish. The edges of the rear sight are rounded to prevent snagging, enhancing comfort during concealed carry.

Installation is straightforward, although professional installation is recommended to ensure proper alignment and security. The sight heights are carefully selected for a lower 1/3 co-witness, providing an optimal balance between red dot visibility and backup sight availability. There’s minimal learning curve, especially for experienced shooters familiar with Glock pistols and red dot optics.

Durability & Maintenance

Machined from 4140 steel bar stock and finished with Salt Bath Nitriding, the Overwatch Precision Have Blue RMR/MOS Compatible Sight Set is built to last. The rugged construction ensures that these sights can withstand the rigors of daily carry and regular use. Regular cleaning with a mild solvent and lubrication of the sight screw will help maintain optimal performance and prevent corrosion.

The combination of high-quality materials and durable finish promises a long service life. The 316 stainless steel sight screw that comes with the front sight and the rear sight set screw add additional assurances. The sight set is designed for ease of maintenance, which contributes to its overall appeal.

Accessories and Customization Options

The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set comes with a front sight screw and a rear sight set screw. The design is primarily intended as a standalone backup sighting system, not necessarily requiring other accessories. It is compatible with any Glock pistol equipped with an RMR or MOS cut slide.

These sights do not have the ability to have tritium inserts added. The height is also not adjustable. The primary customization option is the choice of blacked-out sights versus sights with tritium inserts from other brands.

Pros and Cons of Overwatch Precision Have Blue RMR/MOS Compatible Sight Set

Pros

Durable 4140 steel construction with Salt Bath Nitriding finish.
Lower 1/3 co-witness with RMR optics on Glock MOS slides.
Serrated front and rear sights to minimize glare.
Fast target acquisition with a clean, minimalist sight picture.
Combat Hold sight picture.

Cons

Plain black sights lack tritium inserts for low-light visibility.
Sight height is not adjustable.

Who Should Buy Overwatch Precision Have Blue RMR/MOS Compatible Sight Set?

Perfect for Glock owners who have upgraded to a red dot optic and need a reliable, low-profile backup sighting system. Competitive shooters who value speed and accuracy will appreciate the rapid target acquisition and consistent sight picture. Tactical users and law enforcement officers who rely on their firearms in high-stress situations will benefit from the durability and simplicity of these sights.

Those who rely on tritium or fiber optic sights for low-light shooting should skip this product. Anyone needing adjustable height sights should also look elsewhere.

Conclusion on Overwatch Precision Have Blue RMR/MOS Compatible Sight Set

The Overwatch Precision Have Blue RMR/MOS Compatible Sight Set is an excellent choice for anyone seeking a durable, low-profile, and effective backup sighting system for their Glock pistol. The quality construction, thoughtful design, and reliable performance make them a worthwhile investment. The price of $66.95 is justified given the quality of materials and overall performance.

I wholeheartedly recommend these sights to anyone looking to enhance the reliability and functionality of their Glock pistol with a red dot optic. Upgrade your Glock today and experience the difference a quality backup sight can make!