5 Best Glock 43X MOS Red Dot Sight

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Welcome to My Review of Best Glock 43X MOS Red Dot in 2024.

Glock 43X MOS is one of the best handguns on the market today. With its sleek design, it’s perfect for concealed carry or target shooting.

The thing that can make this Glock 43X better is adding a red dot. Red dot sights are essential for any serious shooter, as they provide faster target acquisition and improved accuracy.

If you’re looking to add a red dot to your Glock 43X MOS, I’ve got you covered with the 5 best red dots that I have tested and researched in 2 weeks.

What red dots fit Glock 43x mos?

The Best Fit red dot for Glock 43X MOS is HOLOSUN HS507K-X2. It’s my personal favorite because of its durability and crystal-clear optic. It has a 50 K-hour battery life, making it one of the longest-lasting red dots on the market today.

Without delay, here is my list of the 5 best Glock 43X MOS red dots.

5 Best Red Dots for Glock 43x

1. Holosun HS507K-X2 – Best All Around

The Best Fit optic for Glock 43X MOS is Holosun HS507K-X2. This red dot has everything that you could possibly want in a red dot sight for your Glock 43X MOS.

The Holosun HS507K-X2 is made from tough Aluminum and features a durable black finish that resists scratches and wears.

It also has an adjustable brightness control and a 2 MOA Dot & 32 MOA Circle that helps improve accuracy when shooting at long distances. Plus, it’s waterproof up to 1 meter and shockproof, making it ideal for any environment.

The Holosun HS507K-X2 offers superior performance in terms of accuracy and speed. Its reflex lens system allows it to acquire targets quickly and accurately, even in low-light conditions.

Its high battery life ensures that you won’t have to worry about running out of power during an important shoot. The Holosun HS507K-X2 has a battery life of up to 50,000 hours, making it one of the longest-lasting red dots on the market today.

Reason To Buy

The Holosun 507K is an ideal pick for Glock 43X MOS pistols. With a slim profile, this micro red dot sight fits like it’s part of the gun. It also offers great accuracy and long battery life and is ready to go out of the box.

HOLOSUN HS507K-X2 Detailed Review

  • 50000 hour battery life
  • Durable aluminum construction
  • 2 MOA Dot & 32 MOA Circle Reticle
  • Adjustable brightness control
  • Waterproof up to 1 meter
  • shockproof
  • The sight is a bit wider than Glock 43 MOS slide

2. Swampfox Sentinel – Best Value for Money

If you’re looking for an unbeatable price on a top-notch red dot sight, the Swampfox Sentinel should be your go-to. It’s Easy to install and Fits Glock 43 MOS slides without any modifications or adapter plate.

The 7075 T6 body construction of the Sentinel makes it one of the toughest red dot sights on the market. It’s waterproof, fog proof, and shockproof, so you don’t have to worry about it in even the harshest conditions.

The Swampfox Sentinel is a dependable and long-lasting choice when it comes to concealed carry. It’s not quite as ruggedly as Holosun 507K, but still totally up for the job.

The Sentinel has got you covered when it comes to precision aiming. With its 3 MOA dot reticle, your shots will be dead-on accurate. Plus, the battery life is incredible.

Reason To Buy

The Sentinel is a game-changer. It comes in two versions. If you want complete control over your sight, then manual brightness adjustment might be the way to go. But auto-brightness is a great feature if you want to save battery life and don’t want the hassle of constant adjustments.

  • Easy to install
  • Fits Glock 43 MOS slides
  • Waterproof, fog-proof, and shockproof
  • 3 MOA dot reticle
  • Aut & Manual model
  • Not as rugged as Holosun HS507K‑X2

3. Crimson Trace RAD – Best Glock 43X Mos Red Dot Compatibility

The Crimson Trace RAD Micro Pro is an excellent red dot optic that complements the Glock 43X MOS.

I loved using Crimson Trace RAD due to its robustness and practical features. The body of the optic is made of Aerospace aluminum, and it has a square-shaped top that adds built-in angles to enhance impact resistance.

The sight housing has large, user-friendly brightness buttons, and its design is visually appealing.

The RAD Micro Pro has a long battery life of approximately 10,000 hours and a 3 MOA dot reticle that offers greater precision when aiming.

Its waterproof, shockproof, and fog proof capabilities make it a reliable option for any environment.

It features the RMSc footprint, which eliminates the need for an adapter plate when mounting it directly on the Glock 43X MOS slide.

Reason To Buy

The Crimson Trace RAD Micro Pro is a highly durable and dependable red dot optic that is an excellent match for the Glock 43X MOS. Its practical features, extended battery life, and RMSc footprint make it an appealing choice for anyone looking for a reliable and precise red dot optic.

  • Durable and reliable
  • made of Aerospace aluminum
  • built-in angles for enhanced impact resistance
  • Large, user-friendly brightness buttons
  • Long battery life
  • Waterproof, shockproof, and fog proof
  • RMSc footprint
  • Not hold zero

4. Hex Wasp – Smallest Glock 43 Mos Red Dot

The Hex Wasp is an excellent little red dot that can be easily mounted on the Glock 43X MOS without the need for an adapter plate.

Although it is designed to work with the Springfield Hellcat, the Wasp has a Shield RMSc footprint and is fully compatible with the 43X MOS slide.

Hex Wasp is Constructed from 6061-T6 Aluminum. The Wasp is a well-built and durable red dot. Its anodized finish protects the optic from moisture and the elements.

It features a clear lens and a 3.5 MOA dot reticle that is perfect for most shooting applications. The optic’s battery life is around two years, which is a considerable amount of time.

The Hex Wasp is a “permanently on” optic, similar to the Shield RMSc, and will adjust the reticle brightness level according to the ambient lighting conditions.

Reason To Buy

The Hex Wasp is an excellent mid-range red dot optic that is perfect for the Glock 43X MOS. Its shield RMSc footprint, clear lens, and 3.5 MOA reticle make it a great choice for both competition shooting and everyday carry.

  • Compact design
  • Shield RMSc footprint
  • Constructed from 6061-T6 Aluminum
  • Clear lens and 3.5 MOA dot reticle
  • Automatic brightness adjustment technology
  •  Poor battery life

5. Trijicon RMRcc – Most Rugged

The only reason I put this sight in the last position is that it comes with a hefty price tag.

The Trijicon RMRcc boasts the same durability as the popular RMR sight. It is Designed specifically for use with the single-stack Glock 43X MOS. There are two options if you want to mount the RMRcc on glock 43X.

  1. Milling the Non-MOS Glock 43X slide – One option is to have the slide of the non-MOS Glock 43X milled to accommodate the RMRcc. This involves removing material from the slide in a precise manner to create a mounting platform for the sight. This method may require the services of a gunsmith and can be a more expensive option.
  2. MOS Adapter Plate: Another option is to use a MOS adapter plate to mount the RMRcc to the Glock 43X MOS. This method is simpler and less expensive than milling the slide, as it involves mounting a pre-designed plate to the MOS system on the firearm. However, this option is only available for the MOS variant of the Glock 43X.

By choosing either of these methods, the Trijicon RMRcc can be successfully mounted onto the Glock 43X, providing an accurate and fast aiming solution that is particularly useful in self-defense or competitive shooting scenarios.

The Trijicon RMRcc is built with toughness and reliability in mind. Its construction is made from 7075 aluminum, which is known for its durability and strength, providing the sight with a sturdy and resilient build. The patented RMR square-top design is also incorporated in the RMRcc, ensuring that it is both shock-resistant and able to withstand heavy recoil from repeated firing.

Reason To Buy

The Trijicon RMRcc offers an exceptional combination of speed, accuracy, and durability, making it an excellent investment for anyone looking to improve their Glock 43X’s sighting capabilities.

  • Compact size and lightweight design
  • Durable construction
  • scratch-resistant lenses.
  • Adjustable LED brightness 
  • Clear and precise aiming 
  • 3.25 MOA dot reticle.
  • Long battery life 
  • Waterproof.
  • Relatively expensive compared


The Glock 43X MOS is a versatile and reliable handgun that can be made even better with the addition of red dot sights. I recommended a comprehensive list of the five best Glock 43X MOS red dots. Each red dot was thoroughly researched and tested for its compatibility, accuracy, durability, and battery life. The HOLOSUN HS507K-X2 emerged as My top pick for its superior features, including a 50,000-hour battery life, durable aluminum construction, and adjustable brightness control. Whether you’re a competitive shooter or a concealed carry enthusiast, any of the red dots on this list will help enhance your shooting experience and improve your accuracy.

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What is the best red dot for Glock 43X MOS?

The HOLOSUN HS507K-X2 is the best red dot for Glock 43X MOS, including a 50,000-hour battery life, durable aluminum construction, and adjustable brightness control.

What red dot does Glock recommend?

Glock itself doesn’t recommend any particular red dot, but some of the most popular models for Glock handguns are the Trijicon RMRcc, HOLOSUN HS507K-X2, and swamp fox Sentinel.

What optic fits the 43X MOS?

The Trijicon RMRcc, HOLOSUN HS507K-X2, and SwampFox Sentinel are all compatible with the Glock 43x MOS. Additionally, a MOS adapter plate can be used to mount other red dot sights to the Glock 43X MOS.

Can you mount an optic on a Glock 43X?

Yes, with the right mounting hardware and adapter plates, it is possible to mount an optic on a Glock 43X.

Will a Holosun 507K fit a Glock 43X?


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I quit my job as a high-powered lawyer to pursue the outdoors. I spend most of my time fishing and hunting but am also an avid shooter with two years experience writing about firearms related topics.

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