5 Best Red Dots for Glock 43x Mos

About the Glock 43X MOS

 

 

The Glock 43X MOS combines the sleek and concealable design of the Slimline series with advanced tactical features, making it an ideal choice for everyday carry and personal defense.

Chambered in 9×19, this compact powerhouse boasts a short subcompact barrel and a slim profile for unparalleled comfort and concealability.

The balanced compact grip, enhanced by a built-in beavertail and special grip texture, ensures a secure and ergonomic hold, even during extended shooting sessions.

 

 

 

 

Precision Meets Performance
Engineered with the renowned Glock Marksman Barrel (GMB) from the Gen5 series, the G43X MOS delivers match-grade accuracy with its enhanced polygonal rifling. Precision-milled front serrations on the slide offer an additional tactile surface for quick and reliable press checks, while the durable polymer frame absorbs recoil and enhances shooting comfort.

Enhanced Modular Optics and Accessory Compatibility
The G43X MOS features a Modular Optic System (MOS) with slide cuts designed for seamless mounting of popular micro-optics. An integrated slim mounting rail in front of the trigger guard allows for tactical lights or lasers, elevating its versatility in low-light scenarios.

Slimline Magazine Design
The single-stack magazine is meticulously crafted for reliability and efficiency, holding 10 rounds in a slim profile. A high-visibility orange follower lets shooters easily check ammunition status, while a polymer-coated metal insert ensures durability.

Safety and Functionality in Every Shot
The Safe Action System provides three independent safeties that disengage sequentially as the trigger is pulled, ensuring consistent performance with a short trigger reset. Additional features like the reversible magazine catch, slide stop lever, and loaded chamber indicator make the G43X MOS intuitive and user-friendly for shooters of all skill levels.

Specifications

• Caliber: 9 mm Luger
• Barrel Length: 87 mm (3.41 in)
• Magazine Capacity: 10 rounds
• Weight (Unloaded): 526 g (18.55 oz)
• Trigger Pull: 24 N

TheGlock 43X MOS is not just a firearm, it’s a seamless blend of concealability, precision, and tactical readiness. Whether you’re upgrading your everyday carry or seeking a reliable partner for personal protection, the G43X MOS delivers performance you can trust.

 

Best Red Dots for Glock 43x Mos

1) HOLOSUN HE507K-GR X2 Pistol Sight

 

 

The Holosun HE507K-GR X2 Pistol Sight stands out as one of the best red dot sights for the Glock 43X MOS, offering a compact yet powerful optic specifically designed for concealed carry handguns. With its green Super LED reticle, this sight delivers exceptional visibility and target acquisition in diverse lighting conditions.

Whether you’re engaging targets at close range or refining your precision for longer shots, this optic enhances your Glock 43X MOS’s performance with unmatched versatility.

This sight features a robust 7075 aluminum housing with an anodized finish, ensuring durability to withstand everyday use and harsh conditions. Its IP67 waterproof rating protects the optic against dust and water immersion, providing reliability in any environment.

The 0.58×0.77-inch window size offers a clear and unobstructed field of view, while the parallax-free design and unlimited eye relief enable rapid and accurate target engagement.

One of the standout features of the HE507K-GR X2 is its Multi-Reticle System (MRS), which allows you to switch between three reticle options: a 2 MOA dot, a 32 MOA circle, or a combination of both. This flexibility caters to a range of shooting scenarios, from quick target acquisition to precise aiming.

Additionally, the sight’s 12 brightness settings, including two-night vision-compatible levels, let you adapt to various ambient lighting conditions.

Holosun’s Shake Awake Technology further sets this optic apart by conserving battery life through motion detection. The sight automatically powers down when idle and reactivates at the slightest movement, ensuring it’s always ready when you need it.

With a remarkable 50,000-hour battery life on setting 6 and a convenient side-loading tray for the CR1632 battery, this optic is both practical and reliable.

 

 

 

 

Key Features

• Reticle Options: Multi-Reticle System with 2 MOA dot, 32 MOA circle, or both.
• Battery Life: Up to 50,000 hours with Shake Awake Technology.
• Brightness Settings: 12 levels, including 2 night vision-compatible settings.
• Build Quality: Durable 7075 aluminum housing with IP67 waterproof rating.
• Ease of Use: Lock Mode prevents accidental setting changes, and side-loading battery tray simplifies replacements.

Pros

• Compact and lightweight design tailored for concealed carry.
• Versatile reticle system for different shooting scenarios.
• Exceptional battery life with Shake Awake Technology.
• Durable construction and waterproof capabilities.
• Easy-to-use controls with Lock Mode for added security.

Cons

• Requires an adapter plate for Glock slides with a four-boss interface.

 

2) ADE Advanced Optics NUWA Micro Red Dot Sight 

 

The ADE Advanced Optics NUWA Micro Red Dot Sight is a game-changing optic designed with the Glock 43X MOS and other optics-ready pistols in mind. Crafted from hard-coated aircraft aluminum with a multi-coated glass lens, the NUWA offers durability and crystal-clear performance that surpasses red dots with plastic bodies and polymer lenses. Its lightweight and ultra-compact design make it an excellent choice for concealed carry while providing robust performance in any condition.

One of the standout features of the NUWA is its top-loading battery compartment, a first in red dots with an RMS/RMSc footprint. This innovative feature eliminates the need to remove the sight to change the CR1632 battery, saving time, effort, and ammunition by preserving zero during replacements.

With a battery life of approximately 500–800 hours, depending on brightness settings, the NUWA offers dependable performance for extended use.

The NUWA also incorporates practical design elements like a built-in rear iron sight curve with two white dots. This thoughtful addition allows the red dot to serve as a co-witness backup sight, enhancing versatility in scenarios where your pistol’s iron sights may be needed.

For pistols that require an adapter plate replacing the rear sight, the NUWA’s rear white dots replicate the function of original iron sights, providing seamless integration with factory setups.

Another key strength of the ADE NUWA is its ease of use. The manual activation system is straightforward and reliable, allowing you to turn the sight on or off with a 2-second press or quickly adjust brightness with a single button press.

This intuitive control system ensures you’re always prepared to adapt to changing lighting conditions.

 

 

 

Key Features

• Durability: Hard-coated aircraft aluminum housing and multi-coated glass lens for rugged performance.
• Battery Access: Top-loading design prevents loss of zero when replacing batteries.
• Built-In Iron Sight: The rear curve with white dots acts as a co-witness backup sight.
• Compact Design: Lightweight and ultra-short profile ideal for concealed carry.
• Ease of Use: Manual activation with intuitive brightness adjustments.

Pros

• Durable construction with high-quality materials.
• Top-loading battery compartment saves time and ammo.
• Co-witness capability with built-in iron sight design.
• Compact and lightweight for concealed carry applications.
• Straightforward operation with brightness adjustment.

Cons

• Manual activation lacks motion-activated technology

 

3) Vortex Optics Defender-CCW Micro Red Dot Sight

 

The Vortex Optics Defender-CCW Micro Red Dot Sight is one of the Best Red Dots for Glock 43x Mos, it features a 3 MOA or 6 MOA Dot Size, hard coated aspherical Lens, motion activation with 14-hour auto-shutoff, shock shield polymer insert and  Shield RMS Footprint among other features.

The 3 MOA red dot offers exceptional precision, while the large, hard-coated aspherical lens provides a distortion-free, wide-sight picture that’s larger than comparable models like the Viper and Venom MRDS. With fully multi-coated lenses and true color fidelity, target acquisition is faster and more accurate, even in challenging lighting conditions.

The Defender-CCW also accommodates Shield RMS and RMSc footprints without modification, ensuring compatibility with many optics-ready pistols.

Key to its practicality is the motion activation system, which automatically powers on the red dot when motion is detected, paired with a 14-hour auto-shutoff to conserve battery life. This system, combined with the top-mounted battery compartment, makes battery changes seamless and hassle-free without losing zero.

The optic also features eight daylight brightness settings and two night-vision-compatible settings, allowing for versatile use in a wide range of environments.

Durability is at the core of the Defender-CCW, with a 7075 aluminum body, ShockShield polymer insert, and ArmorTek lens coating to withstand shocks, moisture, and everyday impacts. The waterproof, fogproof, and shockproof design ensures reliable performance in all conditions, while the fast-rack textured front face provides additional grip for slide manipulation.

Backed by Vortex’s VIP Warranty, the Defender-CCW is a dependable investment in quality and peace of mind.

 

 

 

 

Key Features

• Precision Performance: 3 MOA dot with a wide, distortion-free sight picture.
• Motion Activation: Automatically wakes up with motion, saving time and battery life.
• Rugged Durability: ShockShield polymer, ArmorTek coating, and waterproof construction.
• User-Friendly Design: Top battery compartment and compatibility with Shield RMS footprints.
• Versatile Brightness Settings: 10 total settings, including night-vision compatibility.

Pros

• Compact and snag-free design for smooth concealed carry.
• A large, distortion-free lens with brilliant optics.
• Motion activation and 14-hour auto-shutoff conserve battery life.
• Durable construction with waterproof, fogproof, and shockproof features.
• Easy battery replacement without re-zeroing.
• Lifetime VIP Warranty for unmatched support.

Cons

• Manual adjustments are required for brightness settings.

 

4)  Shield Sights Compact Reflex Mini Red Dot Sight

 

The Shield Sights Compact Reflex Mini Red Dot Sight (RMSc) is an outstanding choice for Glock 43X MOS owners seeking a lightweight, reliable, and high-performing optic. Tailored specifically for slim-profile handguns, this red dot is ideal for concealed carry, offering precision targeting without adding unnecessary bulk.

The RMSc is a streamlined version of the popular RMS, designed to fit single-stack pistols such as the Glock 43, Smith & Wesson Shield, and other compact firearms. Its parallax-free, clear polymer lens is engineered to endure up to ten times more shock impact than traditional glass optics, ensuring durability and reliability even in high-stress scenarios.

Unlike many competitors, the RMSc eliminates the use of red reflective filters on the lens, minimizing the visual signature and providing a clean, unobstructed sight picture.

Constructed from aerospace-grade aluminum with a matte black anodized finish, the RMSc is built to last. Its variable intensity drive circuit automatically adjusts LED brightness to match ambient light conditions, ensuring the red dot remains visible against any backdrop, from bright daylight to night vision-compatible low-light settings. The sight is available in multiple dot sizes, allowing customization based on your shooting needs.

While the battery is housed underneath the sight—requiring removal for replacement—the RMSc boasts exceptional efficiency with a battery life of 2 to 3 years under average use, and over 4 years in dark storage.

Its compatibility with existing RMS/SMS mounts and the wide availability of mounting options make it a versatile choice for optics-ready pistols.

 

 

 

Key Features

• Shock-Resistant Lens: Parallax-free polymer optics withstand extreme impacts.
• Automatic Brightness Adjustment: Adapts to light levels for optimal visibility.
• Minimal Visual Signature: No red reflective coatings for a clean, low-profile appearance.
• Durable Construction: Aerospace-grade aluminum with anodized matte finish.
• Extended Battery Life: Up to 3 years of active use and 4+ years in storage.

Pros

• Compact design ideal for single-stack pistols like the Glock 43X MOS.
• Durable polymer lens resists high-impact shocks.
• Automatic brightness adjustment simplifies use in various lighting conditions.
• Sleek, non-reflective lens minimizes visual signature.
• Compatible with existing RMS/SMS mounts and accessories.

Cons

• Battery access requires removal of the sight, potentially necessitating re-zeroing.
• Automatic brightness adjustment may not suit all user preferences.
• No manual brightness controls for customization.

 

5) Athlon Optics Midas EDC Red Dot Sight

The Athlon Optics Midas EDC Red Dot Sight stands out as a top-tier choice for Glock 43X MOS users seeking a robust, compact, and high-performing optic. Designed for everyday carry, this red dot sight delivers reliable performance and precision targeting, making it an ideal companion for concealed carry enthusiasts.

At the heart of the Midas EDC is its fully multi-coated lens, which significantly reduces reflected light while enhancing light transmission. This ensures a brighter, clearer image with true-to-life color fidelity, even in challenging lighting conditions. The 3 MOA reticle dot strikes a perfect balance between precision and rapid target acquisition, ideal for both defensive and range applications.

Durability is a hallmark of the Midas EDC. The optic is sealed and gas-purged, making it waterproof and resistant to harsh environmental conditions. Whether caught in a downpour or accidentally submerged, the sight maintains peak performance. The nitrogen purging also prevents fogging, ensuring clear visuals across a wide range of temperatures.

One of the most impressive features of the Midas EDC is its motion sensor technology. The built-in detector automatically wakes the optic from sleep mode when motion is detected, ensuring it’s ready when you need it. Coupled with an extended battery life of up to 50,000 hours at medium illumination settings, this optic offers long-lasting reliability without frequent battery changes.

Weighing in at just 0.65 oz, the Midas EDC is exceptionally lightweight and maintains a low profile, adding minimal bulk to your firearm. Its RMSc mount compatibility ensures seamless integration with optics-ready pistols like the Glock 43X MOS.

 

 

 

Key Features

• Fully Multi-Coated Lens: Enhanced light transmission and brighter, true-color imaging.
• Motion Sensor Activation: Automatically wakes the sight when motion is detected.
• Waterproof and Fogproof: Reliable performance in all weather conditions.
• Exceptional Battery Life: Up to 50,000 hours on medium illumination settings.
• Lightweight Design: Compact and weighing only 0.65 oz for effortless carry.

Pros:

• Superior optical clarity with fully multi-coated lenses.
• Motion activation ensures readiness without manual adjustments.
• Extended battery life reduces the need for frequent replacements.
• Rugged construction withstands harsh weather and accidental drops.
• Lightweight and compact, perfect for concealed carry firearms.

Cons:

• Limited to RMSc mounting systems, which may require an adapter for non-compatible firearms.

Next Read: 4 Best Holosun for Glock 43X Mos

Factors to Consider when Choosing the Best Red Dots for Glock 43x Mos

Here are the most important considerations:

Footprint Compatibility

The Glock 43X MOS is designed to accept optics with specific footprints, such as the Shield RMS or RMSc. Ensuring the red dot sight is compatible with these footprints eliminates the need for adapters, reducing weight and maintaining a streamlined design.

Compatibility ensures a secure fit, optimal alignment, and reliability under recoil, which are crucial for both defensive and recreational use.

Durability and Build Quality

A red dot sight for concealed carry must withstand the rigors of everyday use, including impacts, recoil, and exposure to various environmental conditions. Optics made from high-quality materials like aerospace-grade aluminum, coupled with protective coatings like ArmorTek or similar technologies, provide resistance against scratches, water, and shock. Durability ensures long-term reliability and functionality even under harsh conditions.

Optical Clarity and Lens Quality

Clear and distortion-free lenses are essential for rapid and accurate target acquisition. Features like fully multi-coated or aspherical lenses improve light transmission, reduce glare, and offer true color fidelity.

A large sight window provides an expansive field of view, which is particularly beneficial for maintaining situational awareness in defensive scenarios.

Battery Life and Power Management

Extended battery life is crucial to avoid frequent replacements, especially for concealed carry optics. Look for red dots with efficient power management features, such as motion-activated wake functions and auto-shutoff, which conserve battery life while ensuring the sight is ready for use. Models offering 50,000 hours or more of battery life provide peace of mind for daily carry.

Reticle Size and Brightness Settings

The size of the reticle, typically measured in MOA (minutes of angle), impacts precision and speed. A 3 MOA dot is ideal for balancing accuracy and rapid target acquisition.

Adjustable brightness settings, including night-vision-compatible levels, allow the red dot to adapt to various lighting conditions, from bright daylight to low-light environments, enhancing versatility.

Ease of Use and Maintenance

A red dot sight should be user-friendly, with straightforward controls for adjusting brightness and zeroing the reticle. Features like top-mounted or side-mounted battery compartments simplify battery replacement without the need to remove and re-zero the sight. Additionally, optics with minimal maintenance requirements reduce downtime and ensure consistent performance.

Weight and Size

The Glock 43X MOS is a compact, lightweight pistol, so the red dot sight should complement this design. A lightweight and slim profile optic reduces bulk, maintains the firearm’s balance, and ensures a snag-free draw from a holster. Compact red dots enhance the pistol’s concealability, which is vital for everyday carry.

Price and Warranty

Red dot sights for the Glock 43X MOS come in a range of prices, from budget-friendly options to premium models. It’s essential to balance cost with quality and features.

Optics backed by comprehensive warranties, such as lifetime or VIP warranties, offer additional value by ensuring repair or replacement in case of defects or damage.

Best Red Dots for Glock 43x Mos FAQs

What Makes a Red Dot Compatible with the Glock 43X MOS?

The Glock 43X MOS is designed to accept optics with the Shield RMS or RMSc footprint. Red dots with these footprints fit securely on the slide without the need for additional adapters. Compatibility ensures a proper alignment and low-profile design that maintains the slim and streamlined nature of the Glock 43X MOS, making it ideal for concealed carry.

What Reticle Size is Best for the Glock 43X MOS?

A 3 MOA or 6 MOA red dot reticle is most commonly recommended. A 3 MOA dot offers greater precision for accurate shooting, especially at longer distances. In contrast, a 6 MOA dot provides faster target acquisition, which is advantageous in self-defense situations. The choice depends on personal preference and intended use.

How Important is Battery Life for a Glock 43X MOS Red Dot?

Battery life is critical for concealed carry optics. Long battery life ensures the sight remains operational when needed without frequent replacements. Features like motion-activated wake and auto-shutoff are essential for conserving battery power while ensuring the red dot is ready for use. Ideally, aim for models offering at least 20,000 to 50,000 hours of battery life.

Do Red Dot Sights Add Bulk to the Glock 43X MOS?

Modern red dot sights for the Glock 43X MOS are designed to be compact and lightweight, adding minimal bulk. Models like the Shield RMSc, Vortex Defender-CCW, and others are specifically engineered for slim-profile handguns, ensuring they do not impede concealment or create a snag during the draw.

Final Thoughts

In conclusion, upgrading your Glock 43X MOS with a high-quality red dot sight is a game-changer for accuracy, speed, and overall shooting confidence.

Each red dot discussed offers unique advantages, from motion-activated functionality and extended battery life to rugged durability and clear optics. Choosing the best red dot comes down to your specific needs, whether you prioritize compactness for concealed carry, advanced features for low-light conditions, or ease of use for everyday reliability.