The 6 Best Red Dot for Glock 23 are popular compact pistols known for their versatility, manageable size, and dependable performance. Adding a quality red dot sight can provide a fast and clear aiming reference while making target acquisition more intuitive.
However, choosing the right optic requires more than simply selecting a popular model. Factors such as mounting footprint, durability, reticle size, battery life, brightness adjustment, size, and environmental resistance can significantly affect the overall performance of a red dot on a Glock 23.
In this guide, we look at some of the 6 Best Red Dot for Glock 23, including options from Trijicon, Holosun, Aimpoint, and Leupold. From the rugged Trijicon RMR Type 2 and feature-rich Holosun HS507C-X2 to the enclosed Aimpoint ACRO P-2 and versatile Leupold DeltaPoint Pro, each optic offers different advantages.
Whether your priority is durability, a long battery life, a large field of view, or a highly visible reticle, understanding these differences can help you select an optic that best matches your Glock 23 setup and intended use.
6 Best Red Dot for Glock 23
1. RM06-C-700800 Trijicon RMR Type 2 Green Dot Sight Adjustable LED 3.25 MOA Green Dot
The Trijicon RM06-C-700800 RMR Type 2 Adjustable LED 3.25 MOA Green Dot Sight is a premium pistol optic and an excellent choice for the Glock 23. Built around Trijicon’s ruggedised RMR platform, it combines a compact design with a durable housing, adjustable illumination, and a green 3.25 MOA aiming dot.
For a Glock 23 owner looking for a dependable optic that can handle demanding conditions, the RMR Type 2 is particularly attractive because of its emphasis on durability and reliable electronic performance.
The RM06-C-700800 uses a crisp 3.25 MOA green LED dot, providing a useful balance between quick target acquisition and aiming precision. Its automatic brightness mode adjusts the dot according to surrounding lighting conditions, while easy-to-use push buttons provide eight brightness settings, including two night-vision settings and one super-bright setting. This gives the shooter considerable flexibility when moving between different lighting environments.
The RMR Type 2 incorporates ruggedised battery contacts and electronics designed to improve performance and survivability in harsh environments. This is particularly important on a pistol optic, where repeated recoil and everyday handling can place significant stress on the sight. The design gives the RM06 a strong reputation as a hard-use optic suitable for demanding applications.
One of the RMR Type 2’s defining characteristics is its patented housing shape. The housing is made from military-grade aluminium alloy and is forged into a shape designed to divert impact forces away from the lens. This helps protect the optic against impacts and contributes to the sight’s overall durability. For a Glock 23 that may experience frequent range use or demanding field conditions, this rugged construction is a major advantage.
The RMR Type 2 includes a battery conservation feature that automatically adjusts the aiming dot to ambient lighting conditions after approximately 16.5 hours. Under the specified conditions—70°F (21°C) and brightness setting 4 of 8—Trijicon rates battery life at approximately two years of continuous use. Actual battery performance can vary, particularly in extreme temperatures, which can affect lithium battery performance.
Why It Works Well on the Glock 23
The Glock 23 is a compact pistol, making the RMR Type 2’s relatively compact and rugged design a natural match. The optic provides a clear illuminated aiming point while its durable aluminium housing is designed to withstand demanding conditions.
The 3.25 MOA green dot also offers a practical compromise between visibility and precision, making the sight versatile for users who prefer a green reticle.
The RMR Type 2 is also designed for demanding professional applications, including military and law-enforcement use, while its rugged construction makes it suitable for hunting and general outdoor applications. For a Glock 23 configured to accept an RMR-pattern optic, the RM06-C-700800 is a premium option for users who place durability and reliability above having the newest feature set.
Pros
- Excellent rugged construction
- Bright and adjustable 3.25 MOA green dot
- Eight brightness settings
- Two night-vision settings
- Automatic brightness mode
- Durable forged aluminium housing
- Battery conservation mode
- Button lockout feature
Cons
- Premium price
2. Holosun HS507C-X2
The Holosun HS507C-X2 is an excellent red dot sight for the Glock 23, offering a strong combination of durability, reticle versatility, battery efficiency, and fast target acquisition. Its compatibility with the Trijicon RMR footprint makes it a convenient option for many optics-ready or RMR-cut Glock 23 setups without requiring an additional adapter. At just 1.5 ounces, the compact open-emitter design adds minimal weight while providing a feature-rich aiming solution.
One of the biggest advantages of the HS507C-X2 is its mounting compatibility. It is designed around the Holosun 407C/507C and Trijicon RMR footprint, allowing direct mounting on compatible pistols without an adapter.
This makes it suitable for a wide variety of popular handguns as well as rifles, PCCs, and shotguns. For a Glock 23 with a compatible RMR-pattern cut, this can simplify installation and provide a secure mounting platform.
The HS507C-X2 features the ACSS Vulcan reticle, combining a 10 MOA centre chevron with a large outer reference circle. The outer circle helps guide the eye toward the centre aiming point, making it easier to locate the reticle quickly.
If a cleaner sight picture is preferred, the outer reference circle can be deactivated, leaving the chevron by itself. Multicoated lenses help maximise light transmission and provide a crisp sight picture across the optic’s 12 brightness settings.
Despite its lightweight 1.5-ounce design, the HS507C-X2 is built for durability. Its housing is machined from 7075-T6 aluminium and finished with a black hard-coat anodised coating. This combination provides a lightweight package while maintaining the rugged construction expected from a pistol optic. For the Glock 23, the compact design helps keep the overall setup balanced without adding unnecessary bulk.
Holosun’s Shake Awake technology is another useful feature. Motion sensing automatically activates the optic when movement is detected and powers it down when it is not being used, helping conserve battery power. The HS507C-X2 can provide up to 20,000 hours of runtime on a medium brightness setting, depending on operating conditions and configuration.
The integrated Solar Failsafe system provides an additional source of power in bright conditions. The solar panel can supplement the battery and extend operational life while helping keep the reticle illuminated. This gives the HS507C-X2 an extra layer of power redundancy and is particularly useful for users who want additional confidence in their optic’s ability to remain operational.
Pros
- RMR footprint compatibility
- ACSS Vulcan reticle
- Lightweight 1.5-ounce design
- 12 brightness settings
- Shake Awake technology
- Solar Failsafe
- Durable 7075-T6 aluminum housing
Cons
- Open-emitter design
3. Aimpoint ACRO™ P-2 Red Dot Reflex Sight 3.5 MOA
The Aimpoint ACRO™ P-2 3.5 MOA Red Dot Reflex Sight is a premium enclosed-emitter optic that makes an excellent choice for a Glock 23 configured for an ACRO-compatible mounting system. Designed specifically for applications requiring a low-profile red dot, the ACRO P-2 combines a compact profile with impressive battery life and substantial water resistance. Its enclosed design also helps protect the optical and electronic components from environmental exposure.
The ACRO P-2 uses a 3.5 MOA red dot that provides a clear aiming point without occupying excessive space in the sight picture. The dot size is well suited to a compact pistol such as the Glock 23, offering a useful balance between quick acquisition and precise aiming. Its low-profile configuration also helps maintain a streamlined pistol setup.
One of the ACRO P-2’s standout features is its impressive battery life. It can provide up to 50,000 hours of operation, equivalent to more than five years of continuous use under specified conditions. The optic uses a CR2032 battery, which is included with the sight. This extended runtime reduces the frequency of battery changes and makes the optic convenient for users who prioritise long-term readiness.
The ACRO P-2 is optimised for applications requiring a low-profile red dot system. This design makes it particularly suitable for pistol applications where keeping the optic compact and streamlined is desirable. On a Glock 23, the low-profile configuration can complement the pistol’s compact dimensions while providing a modern enclosed red-dot aiming system.
Unlike traditional open-emitter pistol optics, the ACRO P-2 uses an enclosed design that protects the emitter and internal components from external elements. The optic is submersible to 115 feet (35 meters), demonstrating its strong resistance to water exposure. This makes it a robust choice for demanding outdoor conditions where environmental protection is important.
The ACRO P-2 package includes a CR2032 battery and an Aimpoint T10 tool, giving the user the basic accessories needed for battery installation and optic adjustments. Having the appropriate tool included is convenient and helps simplify initial setup.
Pros
- Durable enclosed-emitter design
- 50,000-hour battery life
- 3.5 MOA red dot
- Low-profile configuration
- Submersible to 115 feet
- CR2032 battery included
Cons
- Slightly larger than some open-emitter micro dots
4. Leupold DeltaPoint Pro Reflex Sight
The Leupold DeltaPoint Pro Reflex Sight with a 6 MOA Dot and Dark Earth finish is a compact and versatile red dot that makes a strong choice for the Glock 23. Its illuminated reticle is designed to help shooters acquire the aiming point quickly, particularly in lower-light conditions. Combined with its rugged construction and practical battery-management features, the DeltaPoint Pro offers a reliable package for Glock 23 users looking for a lightweight reflex sight.
The DeltaPoint Pro uses a 6 MOA illuminated dot that provides a highly visible aiming point. The illuminated reticle can be especially helpful when transitioning between different lighting conditions, allowing the shooter to pick up the aiming point quickly. For a Glock 23, the relatively large dot favours fast target acquisition while remaining compact enough for a pistol-mounted optic.
One of the DeltaPoint Pro’s useful features is Motion Sensor Technology (MST). The system automatically deactivates the illuminated reticle after approximately five minutes of inactivity to conserve battery power. As soon as movement is detected, the optic instantly reactivates. This provides a practical balance between battery conservation and having an illuminated aiming point available when the pistol is moved.
The DeltaPoint Pro is designed so that it can remain mounted and zeroed when the battery is changed. This eliminates the need to routinely remove the optic or re-zero the sight simply because the battery needs replacement. For Glock 23 owners, this can make routine maintenance more convenient and help preserve the established zero.
Leupold builds the DeltaPoint Pro to withstand demanding conditions. The sight is waterproof, fogproof, and shockproof, giving it the durability needed for repeated use. Its Dark Earth finish also provides an alternative appearance to the traditional black optic housing.
The rugged construction makes it well suited to outdoor and range applications where the optic may encounter moisture, impacts, or changing temperatures.
Pros
- Bright 6 MOA illuminated dot
- Motion Sensor Technology
- Battery changes without losing zero
- Waterproof, fogproof, and shockproof
- Made and assembled in the USA
- Dark Earth finish
Cons
- Battery life depends on usage and settings
5. Trijicon Night Sight Sets for Glock Pistols
The Trijicon GL601-C-600836 Night Sight Set is a durable iron-sight option for Glock pistols, including the Glock 23. While it is important to note that this product is a night-sight set rather than a red-dot optic, it can serve as an effective alternative or backup sighting system. The set provides a visible front sight and a conventional rear-sight arrangement, making it useful for shooters who prefer traditional iron sights.
The set features an orange front outline, providing a contrasting aiming reference that can help make the front sight easier to distinguish against various backgrounds. The contrasting front-sight design is especially useful when a shooter wants a more visible conventional sight picture without relying solely on the illuminated elements.
The rear sight incorporates a 0.169-inch notch width, providing a defined sight picture when aligned with the front sight. The notch dimensions contribute to the relationship between the front and rear sights and can help provide a consistent aiming reference.
Another useful characteristic is the ability to perform one-handed slide manipulation using the robust rear-sight design. This provides an additional functional option when operating the slide with only one hand and makes the sight more than simply an aiming component.
Pros
- Compatible with Glock 23
- Orange front outline
- 0.169-inch notch width
- Supports one-handed slide manipulation
- Broad Glock compatibility
- Durable iron-sight configuration
Cons
- Traditional iron-sight sight picture
6. HOLOSUN 407C/507C-X2
The Holosun HE407C-GR X2 is an open reflex sight designed for full-sized pistol applications and is a strong option for the Glock 23. It combines a large field of view with a bright green aiming point, durable construction, and several automatic power-management features. For Glock 23 users looking for a lightweight optic with straightforward operation and long battery life, the HE407C-GR X2 offers an attractive balance of performance and value.
The HE407C-GR X2 provides a large field of view, helping the shooter maintain a broad sight picture while acquiring the target quickly. Its precise 2 MOA green dot is generated by Holosun’s Green Super LED and can provide excellent visibility across different lighting conditions. The green reticle can be particularly appealing to users who find green easier to distinguish than a conventional red dot.
Built for demanding pistol applications, the optic uses a 7075 aluminium housing that provides a strong combination of durability and low weight. It also uses an industry-standard footprint, making it compatible with a wide range of mounting solutions. The CR1632 battery is housed in a convenient side-mounted tray, allowing the battery to be replaced without removing the optic from its mounting position.
The HE407C-GR X2 incorporates Lock Mode, which prevents the optic’s buttons from being accidentally activated or settings from being changed unintentionally. This is particularly useful on a pistol because frequent handling, holstering, or movement could otherwise result in unwanted adjustments. Once the preferred settings are established, Lock Mode helps keep them consistent.
Holosun’s Shake Awake technology helps conserve battery power by deactivating the LED when the optic is not being used. Depending on the model, the activation period can be configured from approximately 10 minutes to 12 hours, and the feature can also be disabled if preferred. Movement or a slight touch instantly reactivates the LED, allowing the sight to return to operation without manually pressing a button.
The Solar Failsafe system provides an additional power source whenever natural or artificial light is available. In Auto Mode, the system automatically adjusts reticle intensity according to the surrounding lighting. The reticle becomes brighter in brighter environments and decreases in intensity in lower-light conditions. This provides an additional layer of reliability while helping maintain an appropriate reticle brightness throughout changing conditions.
The Green Super LED provides up to 50,000 hours of battery life under specified conditions. Combined with Shake Awake and Solar Failsafe, this makes the HE407C-GR X2 a low-maintenance optic for shooters who want extended operating time between battery changes.
Pros
- Bright 2 MOA green dot
- Up to 50,000-hour battery life
- Solar Failsafe
- Shake Awake technology
- Lock Mode
- Durable 7075 aluminium housing
- Side-mounted battery tray
Cons
- Open-emitter design
Factors to Consider When Choosing the 6 Best Red Dot for Glock 23
Durability
A Glock 23 red dot should be durable enough to withstand regular recoil, impacts, and demanding environmental conditions. Features such as 7075-T6 aluminium housings, ruggedised electronics, and shock-resistant construction can improve the optic’s ability to withstand repeated use. Models such as the Trijicon RMR Type 2 and Aimpoint ACRO P-2 emphasise rugged construction, making durability an important consideration for users who expect their optic to experience heavy use.
Reticle Size
The reticle size and colour significantly affect how quickly and easily the aiming point can be identified. Common choices include 2 MOA, 3.25 MOA, 3.5 MOA, and 6 MOA dots. Smaller dots can provide greater precision, while larger dots are generally easier to see and acquire quickly. Green reticles, such as those found on some Holosun models, can also be preferred by shooters who find green easier to distinguish. Consider your intended use and which reticle provides the clearest sight picture for you.
Battery Life
Battery life is another important consideration, particularly if the Glock 23 is used regularly. Some modern red dots offer extremely long runtimes, with certain models rated for tens of thousands of hours. Features such as Holosun’s Shake Awake can turn the optic on when movement is detected and deactivate it during periods of inactivity. Solar Failsafe and automatic brightness adjustment can provide additional power management and redundancy. A side-mounted battery compartment is also convenient because it can allow battery replacement without removing the optic.
Brightness Adjustment
A good red dot should provide sufficient brightness for different lighting conditions, from dim indoor environments to bright outdoor conditions. Look for optics offering multiple brightness settings, automatic brightness adjustment, or dedicated night-vision settings if those capabilities are relevant to your application.
Size and Weight
The optic’s overall size and weight should complement the Glock 23 rather than unnecessarily increasing its bulk. A compact, lightweight optic can help maintain the pistol’s balance and make it easier to handle. At the same time, a larger viewing window can make the aiming point easier to locate. The best choice therefore involves balancing compact dimensions with a sufficiently large and clear field of view for rapid target acquisition.
Also Read:
Best Red Dots for Glock 40 10mm
Best Reflex Sights for Hunting
FAQs of 6 Best Red Dot for Glock 23
- Can you put a red dot on a Glock 23?
Yes. A Glock 23 can be fitted with a red dot if the slide is optics-ready or has been appropriately cut for an optic. The specific mounting footprint must match the red dot or its compatible mounting plate.
- What is the best red dot for a Glock 23?
There is no single best option for every shooter. The Trijicon RMR Type 2 is a strong choice for ruggedness, the Holosun HS507C-X2 offers excellent features and versatility, while the Aimpoint ACRO P-2 is a strong option for those who prefer an enclosed-emitter design.
- What red dot footprint is best for a Glock 23?
The best footprint depends on the slide cut or mounting system on your particular Glock 23. The RMR footprint is particularly common and gives access to popular optics such as the Trijicon RMR and Holosun 407C/507C series.
- Is the Trijicon RMR Type 2 good for Glock 23?
Yes. The RMR Type 2 is known for its rugged construction, dependable electronics, adjustable brightness, and durable housing. Its 3.25 MOA dot provides a balance between visibility and aiming precision.
Conclusion
Choosing the 6 Best Red Dot for Glock 23 ultimately depends on your preferred combination of durability, reticle visibility, battery life, mounting compatibility, and overall design. Overall, selecting an optic that matches your needs and shooting preferences will help you get the most from your Glock 23.