The Glock 43X has become one of the most popular concealed-carry pistols in America. Its slim profile, excellent ergonomics, and reliability make it an outstanding everyday carry gun. However, adding the right red dot can make the pistol even faster and easier to shoot accurately.
The challenge is choosing the right optic. The best red dot for a Glock 43X should be durable enough for daily carry, compact enough to maintain concealability, and reliable enough to trust when it matters most.
This article looks at different red dot options to give the desired performance and reliability on a Glock 43x
Best Red Dots for Glock 43x
| Product | See Prices |
| Holosun EPS Carry –Best Overall
|
Amazon and OpticsPlanet |
| OSIGHT SE Reflex – Best Value
|
Amazon and OpticsPlanet |
| Shield RMSc – Best Low-Profile
|
Amazon and OpticsPlanet |
| Holosun HS507K-X2 – Most proven
|
Amazon and OpticsPlanet |
| Trijicon RMRcc
|
Amazon and OpticsPlanet |
| Steiner Micro Pistol Red Dot
|
Amazon and OpticsPlanet |
| Crimson Trace CT-RAD
|
Amazon and OpticsPlanet |
1) Holosun EPS Carry Enclosed Pistol Sight
The Holosun EPS carry is designed for a narrow sub-compact handgun such as the Glock 43X. PS Carry–RD-MRS features an aspheric lens for a clear sight picture and has an ultra-low dot height for compatibility with most factory iron sights; in fact, Its lowest-height deck from Holosun
Holosun also includes several features that have made the company a favorite among concealed carriers. Shake Awake technology automatically activates the optic when movement is detected, while Solar Failsafe provides an additional layer of reliability. Battery life is excellent, often reaching up to 50,000 hours under normal use.
The Multi-Reticle System (MRS) is another major selling point. You can switch between a precise 2 MOA dot, a large 32 MOA circle, or a circle-dot combination. This flexibility allows shooters to choose a reticle that matches their shooting style. The circle-dot setup is particularly fast for defensive shooting, while the 2 MOA dot excels for precision.
The red dot is made using 7075 aluminum, which is strong and durable, and includes a built-in rear notch sight to further enhance the aim of a target.
Pros
- Fully enclosed emitter protects against lint and debris
- Multi-reticle system offers excellent versatility
- Outstanding battery life
- Durable 7075-T6 aluminum construction
- Shake Awake and Solar Failsafe features
- Proven reliability among concealed carriers
Cons
- Requires a higher initial investment
2) OSIGHT SE Enclosed Micro Reflex Sight
The OSIGHT SE has quickly become one of the most talked-about carry optics on the market, especially among Glock 43X owners looking for premium features without a premium price tag.
Like the EPS Carry, the OSIGHT SE uses an enclosed emitter design. This is a major advantage for a concealed-carry pistol that spends most of its life exposed to clothing fibers, sweat, and everyday debris.
One of the most impressive aspects of the OSIGHT SE is how much optic you get for the money. Many shooters compare it directly to more expensive enclosed optics because it offers a similar feature set at a significantly lower cost. Recent user feedback has been overwhelmingly positive, with many owners praising its durability, clear glass, and ability to hold zero. Some users even report preferring its glass clarity to higher-priced competitors.
The optic also offers direct compatibility with many popular slimline carry pistols, making installation straightforward for many Glock 43X MOS owners.
While the OSIGHT SE may not yet have the decades-long track record of some established brands, it has quickly earned a reputation as one of the best values in the micro red dot market.
Pros
- Excellent value for the money
- Enclosed emitter design
- Clear glass and crisp dot
- Lightweight and compact
- Strong feature set for the price
- Positive real-world user feedback
Cons
- Shorter track record than Holosun
- Not as widely proven in hard-duty use
3) Shield RMSc 
The Shield RMSc helped establish the slim micro-red-dot category and remains a favorite among shooters who prioritize a lightweight, low-profile setup.
One of the first things Glock 43X owners notice about the RMSc is how naturally it sits on the slide. Its slim design complements the pistol’s concealability and keeps the overall package streamlined.
The optic is exceptionally lightweight, which helps maintain the excellent balance of the Glock 43X. For concealed carriers who want the smallest possible optic footprint, the RMSc remains one of the best options available.
The sight picture is clean and uncluttered, making it easy to acquire the dot during rapid presentations. Many shooters appreciate its simple design and straightforward operation. Where the RMSc shines is concealment. It was designed specifically for slim carry guns, and it still feels right at home on the Glock 43X. If minimizing bulk is your top priority, the RMSc deserves serious consideration.
Pros
- Extremely lightweight
- Very low-profile design
- Excellent for concealed carry
- Clean sight picture
- Maintains the slim feel of the Glock 43X
- Proven carry optic
Cons
- Open-emitter design
- Less protection from dirt and debris
4) Holosun HS507K-X2 Dot Red Dot Sights
For years, the Holosun HS507K X2 has been one of the most popular red dots mounted on Glock 43X MOS pistols, and for good reason. It combines a compact footprint, proven reliability, and an excellent feature set in a package designed specifically for concealed-carry handguns.
Like the EPS Carry, the HS507K X2 features Holosun’s Multi-Reticle System, allowing shooters to choose between a 2 MOA dot, a 32 MOA circle, or a circle-dot combination. This flexibility makes the optic equally capable for defensive carry, range shooting, and training. The large circle reticle is particularly helpful for fast target acquisition, while the 2 MOA dot offers greater precision at longer distances. against which other micro pistol optics are judged.
Another feature that distinguishes the HS507K is the lock mode, which locks the buttons to prevent accidental changes to any of the parameters while shooting.
Pros
- Multi-reticle system
- Excellent battery life
- Shake Awake technology
- Compact and lightweight
- Durable aluminum housing
- Fast target acquisition
- Proven reliability
Cons
- Open-emitter design can collect lint and debris.
- Battery change may require re-zeroing
5) Trijicon RMRcc Red Dot Sight
The Trijicon is a compact and low-profile red dot that comes purposefully for concealed carry, such as the Glock 43x. the red dot is meant to give the shooter quick target acquisition, enhanced by the illuminated reticle that adjusts the brightness depending on the lighting conditions. Noteworthy it’s compatible with night vision devices
The red dot has also been designed to handle harsh conditions with characteristics such as waterproofing, and a rugged aluminum housing that’s uniquely designed to divert impact from the lens during a fall. The battery life is decent and able to last for a considerable duration of 4 years, the controls are conveniently located and for fast and easy adjustment.
Overall, this rates at the top of our list in terms of value, which comes from the built quality, the clarity of the lens, and the fact that it is purpose-made for concealed carry.
Features
- Patented housing shape diverts the force of an impact away from the lens
- 8 brightness settings, including 1 super bright mode and 2 night-vision modes
- Uses the CR2032 battery
- waterproof to 20 meters (66 ft.)
- Multi-coated Lens for wide-band light transmission
- Available with either 3.25 or 6.5 MOA Dot suited for both eyes open shooting
- Button “lock-in” Mode secures the user-chosen brightness setting indefinitely
- Weighs 1 Oz.
6) Steiner Micro Pistol Red Dot Sight
The Steiner looks good and functions great. It is a great option for the Glock 43x mainly because, of its durability brought about by the strengthened sidewall that encloses the emitter further enhancing the durability. Despite the toughness, it’s also lightweight and compact with a decent battery life of 13,000 hours.
Additionally, the image quality is splendid allowing for operation with both eyes which gives the shooter great situational awareness. It boasts 8 levels of brightness, including two designed for night vision compatibility, allowing users to acquire targets in various lighting conditions easily.
Features
- Enhanced extra side wall that produces a best-in-class shock rating
- completely enclosed waterproof laser emitter
- 8 brightness settings (two-night vision)
- Raised button on the side of the optic for better ergonomics
- 13,000 hours of battery life
- 1X magnification that allows both eyes to shoot
- Red LED low battery indicator
- Weighs 2.05 Oz.
7) Crimson Trace CT-RAD Red Dot Sight
The Crimson red dot is easily compatible with the Glock 43X and easily installed using a variety of mounts. One of the best ways to attach it is on an existing dovetail notch on the pistol slide. It comes with a 3 MOA red dot reticle for easy target acquisition and integrated co-witness sight for added Accuracy.
Additionally, the reticle is one of the brightest LEDs, with an automated brightness adjustment and a shake-to-wake sensor that activates the reticle when drawn. Aerospace-grade aluminum construction elevates quality, and a recessed optic lens provides further protection.
The red dot also has a low profile for improved ergonomics and a lifetime warranty, giving the customer peace of mind.
Features
- Bottom-accessible battery compartment
- Aerospace-grade aluminum construction
- Industry standard mounting interface
- Ambient light sensor and shake-to-wake sensor
- CR1632 battery with a 20,000-hour life.
- Weighs 1Oz.
Factors to Consider Buying a Red Dot for a Glock 43x
When selecting a red dot sight for your Glock 43X, several factors should be taken into consideration to ensure you make the right choice. These include;
Size and weight
The size and weight of the red dot sight can affect the balance and handling of your Glock 43X. Consider the overall dimensions and weight of the sight, as well as its compatibility with your pistol’s frame. A compact and lightweight sight is generally preferred for ease of use and carry.
Battery life
Red dot sights require batteries to power the illumination. It’s important to choose a sight with a reliable and long-lasting battery life. Look for sights with energy-efficient LED technology and consider the availability and cost of replacement batteries.
Reticle options
Different red dot sights offer various reticle options, including dot, circle-dot, and crosshair. Consider your shooting preferences and the type of shooting you’ll be engaging in when choosing the reticle style. Additionally, some sights offer adjustable brightness settings, allowing you to customize the reticle intensity to match the lighting conditions, as well as improve the life of the battery.
Durability
Glock 43X owners should opt for a red dot sight that can withstand the recoil and harsh conditions associated with shooting. Look for sights with a durable construction, shock resistance, and waterproofing. Additionally, consider the warranty and customer support offered by the manufacturer.
Mounting options
Ensure that the red dot sight you choose is compatible with the Glock 43X mounting system. Some sights may require additional adapters or plates to mount properly. Consider the ease of installation and the stability of the mounting system to ensure a secure fit.
By considering these factors, you can narrow down your options and find the perfect red dot sight for your Glock 43X.
Accessories and upgrades for a red dot sight on a Glock 43X
In addition to the red dot sight itself, several accessories and upgrades can enhance your shooting experience with a Glock 43X. Consider the following options:
Backup iron sights- While red dot sights are highly reliable, having backup iron sights can provide an additional level of confidence. Consider installing co-witnessed iron sights that align with the red dot sight’s reticle. This allows for a quick and easy transition between the red dot and iron sights if needed.
Lens covers– Lens covers protect the lens of your red dot sight from dust, debris, and scratches. They are available in various designs, including flip-up covers and transparent caps. Choose lens covers that are compatible with your specific sight model.
Anti-glare filters- In bright sunlight or reflective environments, glare can affect the visibility of your red dot sight. Anti-glare filters, such as polarizing filters, can help reduce glare and improve sight picture clarity. These filters are typically attached to the front lens of the sight.
Mounting accessories– Depending on your shooting style and preferences, you may consider additional mounting accessories. This includes offset mounts for attaching other accessories, such as a flashlight or a magnifier, alongside the red dot sight.
Upgraded batteries– If your red dot sight allows for battery upgrades, consider using high-quality lithium batteries. These batteries tend to have a longer life and better performance compared to standard alkaline batteries.
Before purchasing any accessories or upgrades, ensure compatibility with your specific red dot sight model and Glock 43X.
Maintenance and care of a red dot sight for a Glock 43X
To ensure the longevity and optimal performance of your red dot sight for Glock 43X, proper maintenance and care are essential. Here are some tips to keep your sight in top condition:
Regularly clean the lens of your red dot sight using a lens-cleaning solution and a microfiber cloth. Avoid using abrasive materials or chemicals that could damage the lens coating. Keep the lens protected when not in use to prevent scratches or debris buildup.
Monitor the battery life of your red dot sight and replace the batteries as needed. It’s a good practice to carry spare batteries with you, especially during extended shooting sessions or competitions.
Avoid dropping or subjecting your sight to unnecessary impact. When not in use, store your Glock 43X with the red dot sight in a suitable case or holster that provides adequate protection.
Regularly check the mounting screws and ensure they are tight and secure. Loose screws can affect the zero and stability of the sight. If necessary, apply a thread-locking compound to the screws to prevent them from loosening over time.
Although certain red dots are waterproof, they should not be exposed to excessive moisture as this can still compromise their performance. Avoid actions like submerging your Glock 43X with the sight connected in water.
By following these maintenance tips, you can prolong the lifespan of your red dot sight and ensure consistent performance.
Conclusion
The Glock 43x is a great handgun on its own but pairing it with a quality red dot further enhances its capability to give you greater fun depending on how you’re using the pistol. The red dots we have reviewed are guaranteed to give the best value all you have to do is choose the one that mostly suits the desired specifications as well as the budget.
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