The Glock G20 is a powerhouse in the handgun world. It stands out for its rugged durability, high magazine capacity, and hard-hitting 10mm Auto chambering. Investing in the best red dot sight for Glock G20 is key to enhance your accuracy, target acquisition speed, and overall shooting confidence.
However, not all red dot sights are created equal, especially when it comes to a handgun like the Glock G20. Its recoil is significantly more intense than that of standard 9mm pistols, so any red dot sight mounted needs to be tough, reliable, and capable of holding zero consistently through repeated firing. Additionally, weight, size, battery life, lens clarity, and reticle design are all important considerations.
About the Glock G20?
The Glock G20 is a full-sized semi-automatic pistol chambered in 10mm Auto. It is designed primarily for individuals seeking a powerful handgun for hunting, self-defense, or duty use.
Introduced in the early 1990s, the handgun combines the 10mm Auto cartridge with Glock’s signature polymer frame and reliable design. Its robust build handles the higher pressures and recoil of the 10mm round, offering shooters a significant increase in power compared to standard 9mm or .40 S&W handguns. Besides, it boasts a Safe Action system that optimizes its versatility for law enforcement, outdoor enthusiasts, and those in need of reliable protection.
Best Red Dots for Glock G20
Whether you’re upgrading your carry gun, setting up for backcountry adventures, or fine-tuning your hunting sidearm, this guide will help you find high-performance red dot sights that brings out the best in your Glock 20. Let’s dive right in.
1. Trijicon RMR Type 2
The Trijicon RMR Type 2 3.25 MOA Adjustable LED Red Dot Sight is the best red dot sight for Glock G20. It stands out as a top-tier optic for both professional and civilian use.
Built with rugged military-grade aluminum housing, the sight is engineered to withstand extreme conditions and heavy recoil. Furthermore, the weatherproof design guarantees unimpeded performance in all weather conditions.
Reticle-wise, the 3.25 MOA dot strikes a balance between speed and precision. It is large enough for rapid target acquisition yet fine enough for accurate shot placement at distance. To help the reticle serve its function, the adjustable LED illumination offers a wide range of brightness settings, including an automatic mode and several manual levels, which allow the shooter to tailor the reticle visibility to various lighting conditions.
More importantly, the sight’s battery life is impressive, rated at over four years of continuous use at setting 4 of 8, minimizing the need for frequent changes and ensuring reliability when it matters most.
Ergonomically, the RMR Type 2 is compact and lightweight, adding minimal bulk to a pistol while still offering an expansive field of view. Furthermore, the windage and elevation adjustments are crisp and repeatable, and the sight maintains zero exceptionally well even with repeated recoil.
Pros
- Versatile mounting options
- Rugged construction
- Crisp 3.25 MOA reticle
- Compact and lightweight
- Long battery life
Cons
- The sight sits on the higher end of the spectrum
2. Holosun HE509T X2
Holosun is renowned for its high-performance and rugged red dot sights and this model is not any different. This enclosed emitter optic offers a 2 MOA dot with a 32 MOA circle, solar backup, and up to 50,000 hours of battery life.
The selling point of this optic is its build quality. Its titanium housing is built like a tank to ensure durability in harsh conditions. Furthermore, The HE509T-GR X2 is a hard-use, nitrogen-purged enclosed LED sight designed for handgun applications.
The Super LED with up to 50k hour battery life makes the sight economical to run and maintain. Additionally, the 12 reticle intensity settings enhance reticle’s visibility in different light settings.
More importantly, this Holosun reflex sight is equipped with MRS to let you select a fast sight picture for shorter distances with a 32 MOA circle with 2 MOA dot. The large circle allows for a hold-over reference and helps guide your eye to the 2 MOA dot. Besides, the large ring can be deactivated leaving just the 2 MOA dot for an uncluttered sight picture and increased precision.
The Shake Awake technology extends battery life by deactivating the optic’s LED while not in use. The slightest touch of the optic instantly reactivates the LED so your Holosun reflex sight for pistol is ready when needed. Besides, if your battery fails, this reflex green dot sight has a backup power source when natural or artificial light is available.
Pros
- Built to last
- Long battery life
- Shake Awake motion detection
- Multi-reticle system
- Compatible with night vision gear
Cons
- Comparatively narrow window size
3. Aimpoint ACRO P-2
Designed for extreme durability, the ACRO P-2 features a fully enclosed emitter, 3.5 MOA dot, and 50,000-hour battery life. It rugged construction is ideal for adverse environments.
With a crisp 3.5 MOA reticle, this red dot sight offers the best balance of speed and precision. The dot that remains clear across various lighting scenarios, complemented by 10 brightness settings, including four compatible with night vision devices.
Notably, the ACRO P-2 also boasts an impressive battery life of up to 50,000 hours on a single CR2032 battery, with a side-mounted compartment allowing for easy replacements without detaching the sight. Besides, its compact dimensions and lightweight profile make it versatile for mounting on pistols without adding any unnecessary weight.
For all-weather use, this red dot sight is waterproof and submersible to 115 feet (35 meters). It is also designed to endure extreme G-forces as the fully enclosed optical channel protects the LED emitter.
Pros
- Robust construction and reliable performance
- Compact and lightweight design
- Long battery life
- Crisp clear glass
- Intuitive, user-friendly controls
Cons
- Premium price tag
4. Steiner MPS
Steiner brings battle-proven durability and mil-spec ruggedness to pistol red dots with the NEW MPS (Micro Pistol Sight).
With an all-metal construction and enhanced sidewalls that completely seal in the emitter, this optic is rugged enough to withstand whatever you throw at it. Besides, the recessed window with a metal hood blocks objects from reaching the front lens making it one of the toughest pistol sights ever created.
At 2.05 oz, the Micro Pistol Sight is compact and lightweight. It is easy to mount and won’t add unnecessary weight to the pistol. Additionally, it features Steiner quality glass that yields bright and crisp image views.
Another robust feature set includes 8 brightness levels for optimal visibility in different light settings. The 1X magnification offers an undistorted image for both eyes open operation and complete situational awareness. The Micro Pistol Sight is also designed to fit an ACRO footprint and is compatible with most optic-ready pistols using ACRO baseplate adapters.
Pros
- Fully enclosed emitter for superior reliability in adverse conditions
- Top-loading CR1632 battery Crisp 3.3 MOA red dot with 8 brightness settings including two that are compatible with night vision gear
- Rugged aluminum housing that is IPX8 waterproof
- Compact and lightweight at only 2.05 oz
- ACRO-style footprint for wide mounting compatibility
Cons
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No automatic brightness adjustment feature
5. Leupold DeltaPoint Pro Red Dot Sight, 2.5 MOA Dot
The DeltaPoint Pro Red Dot Sight, 2.5 MOA Dot is the best red dot sight for Glock G20 for the money. Made by Leupold, it stands out as a premium optic designed for shooters who demand both rugged reliability and precision accuracy.
From the moment it’s mounted, it’s clear that this red dot sight is built with professional use in mind. The 2.5 MOA red dot is crisp and perfectly sized for rapid target acquisition without obscuring the target. This makes it ideal for both tactical use and competitive shooting.
Furthermore, the lens is exceptionally clear, with virtually no distortion, even at the edges. The wide field of view gives a strong situational awareness advantage over many other compact reflex sights while the motion-sensor technology instantly activates the sight when movement is detected, saving battery life without sacrificing readiness.
For added convenience, the battery changes are a breeze thanks to the top-loading battery compartment that allows for quick swaps without removing the sight from your firearm and losing zero.
In terms of build quality, the DeltaPoint Pro exceeds expectations. The housing is machined from aircraft-grade aluminum and sealed to meet IPX7 waterproof standards, making it extremely durable and weather-resistant. Even under heavy recoil or harsh conditions, it maintains zero reliably.
Above all, the intuitive controls make adjusting brightness easy, even with gloves on, and the sight’s design accommodates rear iron sights, which can be installed to maintain a co-witness setup.
Pros
- Advanced features
- Exceptional build quality
- Ease of use
- Top-loading battery compartment
- Large field of view
- Crisp and perfectly sized
Cons
- Comes with a premium price tag
6. Foxarmy FXV22 PRO Multi-Reticle Micro Red/Green Dot Sight
Next, we have the Foxarmy FXV22 PRO Multi-Reticle Micro Red/Green Dot Sight.
The Pistol red dot offers three reticle options: a 2MOA dot, a 32MOA circle, or a combination of both. It is suitable for different shooting scenarios to meet the needs of quick close-range targeting and precise long-range shooting.
To complement the versatile reticle system, the red dot sight feature a Motion Activated System. It automatically enters standby mode after 15 minutes of inactivity to save battery. A light tap or tilt instantly reactivates it and restores the previous brightness setting..
Moreover, the sight features a lock mode that prevents accidental changes to the reticle and brightness settings, ensuring your settings remain unchanged during transport or intense shooting. Furthermore, its user-friendly design includes a top-mounted battery design that makes battery replacement easier while offering better protection against rain or dust exposure.
To top it all off, this red dot sight is built tough and reliable. It is made from high-strength aerospace-grade aluminum to withstand abuse and repeated reoil. With an IPX7 waterproof rating, it delivers dependable performance in harsh conditions, including heavy rain, so you can count on it in any environment.
Pros
- Multi-reticle system
- User-friendly design
- Tough and reliable construction
- Compatible with night vision gear
- Easy to adjust reticle windage and elevation
- Easy to adjust reticle brightness levels
Cons
- Smaller field of view
7. CVLIFE WildHawk Motion Awake 3000G Shockproof 3 MOA Pistol Red Dot
Last but not least, we have the CVLIFE WildHawk Motion Awake 3000G Shockproof 3 MOA Pistol Red Dot. This handgun red dot sight stands out with its wide compatibility with RMS/RMSC/RMR Cut Footprint.
As a compact optic, it is easy to mount with no special tools needed. Its lightweight construction means it fits on the Glock G20 without adding unnecessary bulk or getting in your way of shooting. Furthermore, it features a Lock Mode that locks the buttons preventing inadvertent setting changes.
This red dot sight houses the 1632 battery in a side-mounted tray for easy replacement when needed. The Motion Awake technology helps conserve battery life. While It is turned on, it goes to sleep after 4 minutes of inactivity, and as soon as the optic red dot senses movement, it automatically turns on for immediate use with your last saved brightness setting.
More importantly, this high-performance red dot sight is built to last. The housing is made from 7075 Aluminum and is IPX7 waterproof and 3000G shockproof to be used normally in various harsh environments. This robust construction ensures it to hold zero even when subjected to severe recoil forces.
In addition to all these features, the lens is multi-coated to increase your field of vision to maximize light transmission and abrasion resistance while reducing glare.
Pros
- Side-mounted tray for easy replacement
- Ease of use
- Robust aluminum construction
- Lightweight with the battery installed
- Compatible with night vision gear
Cons
- Slight distortion at the edges
What MOA Dot Size is Best for a Glock G20?
It depends on your use:
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3 MOA is a good all-around size for both accuracy and quick target acquisition.
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6 MOA is ideal for close-range and fast shooting.
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Smaller dots (1-2 MOA) offer better precision but are slower for rapid shots.
Key Factors to Consider when Choosing the Best Red Dot Sight for Glock G20
When choosing the best red dot sight for your Glock G20, it’s essential to consider these key factors to ensure optimal performance, compatibility, and durability:
Compatibility
First and foremost, compatibility with your Glock G20 is crucial since not all red dot sights are designed to fit every handgun. Look for models that are specifically made to mount on Glock slides or are compatible with Glock MOS (Modular Optic System) platforms. If your G20 isn’t MOS-ready, consider whether the sight requires a custom slide cut or mounting plate.
Build Quality
Build quality comes next. The Glock G20 is a powerful 10mm handgun, so the red dot you choose must be rugged enough to withstand the recoil and demanding conditions. Opt for sights made from high-quality materials like aircraft-grade aluminum, and ensure they are shockproof, waterproof, and fog-resistant for operability in different weather conditions.
Battery life and Power Efficiency
Battery life and power efficiency are also critical. A long-lasting battery ensures that your optic is always ready when you need it. For the best red dot sight for Glock G20, look for a model with extended battery life often thousands of hours and features like auto shut-off or motion activation to preserve battery when not in use.
Reticle Clarity
Another important aspect is reticle clarity. A clear, sharp dot that can be easily adjusted for brightness allows for quick target acquisition in various lighting conditions. Furthermore, the reticle’s size should be balanced to avoid obstructing the target. Small reticles of 4 MOA and below are the best when it comes to not obstructing the target.
Brightness Settings
The best red dot sight for Glock G20 should have adjustable brightness settings. Models with multiple brightness settings or automatic brightness adjustment offer greater flexibility for both indoor and outdoor use.
Size and Weight
Additionally, consider the size and weight of the optic. A red dot that is too bulky or heavy can throw off the balance of your Glock G20, making it harder to handle. Slim, lightweight designs are ideal for maintaining the pistol’s natural feel and holster compatibility.
Ease of Installation and Zeroing
The best red dot sight for Glock G20 is made with ease of use in mind. Choose a sight that’s easy to mount and stays securely in place under heavy recoil. Additionally, a user-friendly zeroing process with precise windage and elevation adjustments helps you dial in your aim quickly and accurately.
Lens quality and field of view
Last but not least, don’t overlook lens quality and field of view. Both features play a vital role in performance. High-quality lenses with anti-reflective coatings improve clarity and reduce glare, while a wide field of view helps you stay aware of your surroundings and track moving targets more easily.
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FAQs
- . Is a red dot worth it on a Glock G20?
Absolutely, especially for hunting, outdoor defense, or tactical use. The 10mm round benefits from improved precision, and red dots excel in those roles.
- Are red dots legal for concealed carry or self-defense?
In most areas, yes. Red dots are legal for concealed carry and self-defense as well. They speed up your target acquisition and improves accuracy. There’s a learning curve, but it’s worth it.
- Can I co-witness iron sights with a red dot on the G20?
Yes, but you’ll need suppressor-height sights to co-witness through the optic window.
Final Words
To wrap it up, the best red dot sight for Glock G20 ultimately depends on intended use, budget, and your shooting needs. There are many great red dot sights available on the market so whatever your budget and needs are, there is model out there for you. Hopefully, this post has steered you in the right direction.