The 4 Best Glock Reflex Sights – Red Dot Optic Reviews 2023

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Photo by Kevin Vertucio / CC BY

The future of handgun sights is an electronic one. The use of electronic red dot reflex sights are on the rise with competition shooters, police shooters, and civilian concealed carriers. Glock has lead the way with their MOS series of handguns that are ready to accommodate red dots sights on their handguns (in this article, we use the terms red dots and reflex sights interchangeably).

A good sight should match its intended use. Self defense shooters have different needs than competition shooters, and plinkers have different needs and wants as well. The Glock MOS system has a variety of different plates included to mount reflex sights, but it’s important to match the sight to the available plate styles.

Below are our recommendations for the 4 best Glock reflex sights on the market.

C More STS

C more optics had some of the first handgun optics on the market. They made some of the smallest red dots for decades that were a favorite of competition shooters in open classes. Technology has changed, and effective optics has gotten smaller and smaller. The more modern C-More sight is remarkably small and easy to mount on your Glock pistol. It’s one of the included mounting plates with the MOS system. The STS, or Small Tactical Sight, is a mid-price sight perfect for a variety of different roles.

The C more optic miniature red dot (see full specs) has a 3.5 MOA reticle that had a total of 10 different brightness settings. It’s small enough for Glock users to carry concealed if they so choose. The C more sight brightness levels allows the shooter to use it during the brightest days. The STS also has a battery tray that eliminates removing the optic from the firearm to change the battery.

This small touch is a remarkable addition to the optic. In fact, this is quickly becoming the industry standard for these small reflex sights. The STS uses a single CR2032 battery, which is similar to a watch battery. The STS is extremely well made, and extremely strong. It can withstand the recoil of more powerful calibers like the .357 SIG and the 10mm Automatic. The STS is one of the best red dot sights Glock handguns you can buy.

Trijicon RMR Dual Illuminated

The Trijicon RMR is one of the original miniature reflex sights. The sight was initially designed for rifles, shotguns, and even machine guns. It was adopted over time for the handgun. The Trijicon RMR is another plate included with the Glock MOS system, and is one the best options for guns designed for combat.

If your Glock is designed for combat, police work, concealed carry, or home defense, the Trijicon RMR (see full specs) is likely the best Glock reflex sight for you. After all, the Trijicon RMR is currently in use with several branches of the United States Military. Trijicon makes optics that are go to war ready, optics that shrug off abuse over and over.

Trijicon makes several different designs of the RMR, and the best for the Glock is the 3.25 inch MOA dot model. The dot is large enough to easily catch the eye and small enough for precision shots. The Trijicon RMR is capable of working day in and day out, through the harshest environments imaginable. The Trijicon RMR is an extremely capable optic and the choice of gunfighters worldwide.

Trijicon RMR Type 2 Review: The Best Micro Red Dot?

The Vortex Venom

Vortex keeps making a bigger splash in the optics world. They showed the world that quality can be had affordably. Cut out a few features most people do not need, and you can produce a quality optic at an excellent price and back that optic with an amazing warranty. The Vortex Venom is another Vortex option that simply works, and it can mount easily on the Glock series of pistols.

The Venom has a wider than average viewing window that gives you a wider field of view, and makes it easier to catch your eye from the draw. The Vortex Venom emphasizes speed and precision. The Venom allows features easy to use controls that allows manual controls over the brightness level of the optic.

The Vortex Venom has a battery life of 550 hours and an automatic shut off feature after 12 hours. This of course prevents you from depending on the optic and finding it dead. The lenses are fully multi-coated, and the optic is extremely durable. I could see the Vortex Venom to a great option for concealed carry. Whatever the case, it should be on anyone’s list of the best Glock reflex sights.

Vortex Venom Red Dot

Burris Fastfire 3

The Burris Fastfire 3 is one of the classic miniature red dot optics. The Fastfire is now on its third generation and has taken lessons from the previous two generations to produce an amazing optic. The Burris Fastfire 3 has a 3 MOA red dot reticle that stresses long range precision, but is still large enough for the eye to rapidly catch; The Burris Fastfire 3 is such a classic design that many companies have followed their plate pattern for mounting red dots on pistols.

The Fastfire 3 allows the user to change the battery from the top of the optic. This allows you to change the battery without unmounting the optic. After all, unmounting the optic may make the sight lose zero. Also removing the sight takes time and LocTite to secure again—a pain in a butt.

The Burris Fastfire 3 gives the user easy to use controls and what’s really awesome is the tool less adjustments. There is no need for a small screwdriver to make changes. You can also use either manual brightness settings or you can use automatic settings that detects and adjusts for ambient light. The Burris Fastfire 3 is an all around excellent optic. Especially for those looking for an excellent and affordable starter optic. It’s likely the best Glock reflex sight for the money.

Burris FastFire III Red Dot Reflex Sight - Product in Focus

See It, Shoot It

Reflex sights aren’t perfect just yet; however, they are growing rapidly in popularity. The use of a reflex sight takes some trigger time to learn, but is well worth it. A reflex sight is more efficient for both long range engagements and rapid close range engagements.

An extension into reflex sights is natural for the Glock line of pistols. A reflex sight allows the Glock pistol to be even more versatile and a more capable weapon. Glock has constantly led the industry in innovation, and their MOS series simply proves this. And with the best red dot sights for Glocks so easily available online, you’re sure the right one for your needs. Good luck!

  • Owner of, Boyd Smith is a major handgun enthusiast, and although he owns Glocks, he prefers the revolving wheel type. His go-to guns are a Smith & Wesson 642 Performance Center for carry and a Ruger GP100 in the nightstand biometric safe (he has kids). He loads both revolvers with old-school 148-grain Federal Gold Medal .38 wadcutters. It’s OK if you think he’s a wimp. Email him.

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