Best Glock 43X MOS Red Dot

Chris G.

As a seasoned firearms enthusiast and reviewer, I’ve had the opportunity to test and evaluate a wide range of red dot sights for various handguns, including the Glock 43X. The Glock 43X, a compact and reliable firearm, is a popular choice for concealed carry. Its size and design make it ideal for quick, accurate shooting, especially when paired with a quality red dot sight.

Red dot sights, for those who may not be familiar, are a type of non-magnifying reflector sight for firearms that gives the user an aimpoint in the form of an illuminated red dot. They’re a game-changer for many shooters, offering rapid target acquisition, simplicity, and the ability to shoot with both eyes open.

Over the years, I’ve found that the best red dot sights for the Glock 43X are those that balance size, reliability, and ease of use. Given the compact nature of the Glock 43X, the sight must be small enough to maintain the firearm’s concealability and balance. At the same time, it needs to be robust and reliable enough to withstand the recoil and general wear and tear that comes with regular use.

In the following sections, I’ll be diving into some specific red dot sights that I’ve found to work exceptionally well with the Glock 43X. Stay tuned!

Top 5 Best Glock 43X MOS Red Dots

a closeup of Glock 43X MOS

1. Holosun 407K – Best Budget Option

The Holosun 407K is a compact, open reflex red dot sight designed specifically for subcompact pistols like the Glock 43X MOS. It’s a budget-friendly option that doesn’t skimp on features or performance.

Compact Size

The Holosun 407K is small and lightweight, making it a perfect match for the Glock 43X MOS. Its compact size maintains the balance and concealability of the firearm, making it an excellent choice for concealed carry.

Shake Awake Technology

One of the standout features of the Holosun 407K is its Shake Awake technology. This feature automatically turns the optic on based on movement, ensuring it’s always ready when you need it.

Long Battery Life

With a battery life of up to 50,000 hours, the Holosun 407K offers reliability that’s hard to beat. This long battery life means you can count on your sight to be ready whenever you need it.

6 MOA Dot

The 6 MOA dot reticle of the Holosun 407K is easy to pick up quickly, making it great for rapid target acquisition. It’s also small enough to allow for precise shooting.

Durable Construction

Constructed from 7075 Aluminum, the Holosun 407K is built to withstand the recoil and wear and tear that comes with regular use. It’s a rugged sight that’s built to last.

Why It’s The Best Budget Option

The Holosun 407K offers a great balance of price and performance. It’s packed with features usually found on more expensive models, making it an excellent value for the money.

Pros:

  •  Compact and lightweight
  •  Shake Awake technology
  •  Long battery life
  •  6 MOA dot reticle
  •  Durable construction

Cons:

  •  Requires an adapter plate for some slides
  •  Not as feature-rich as some higher-priced models
  •  Some users may prefer a smaller dot reticle

My Experience Using the Holosun 407K on My Glock 43X MOS

I’ve been using the Holosun 407K on my Glock 43X MOS for a while now, and I’ve been really impressed with its performance. The compact size is perfect for the Glock 43X MOS, and the Shake Awake technology is a great feature that ensures the sight is always ready when I need it. The 6 MOA dot is easy to pick up quickly, which is great for rapid target acquisition. Despite being a budget option, the Holosun 407K doesn’t feel cheap at all. The construction is solid and it’s held up well to regular use. Overall, I think the Holosun 407K is a fantastic budget option for anyone looking for a reliable red dot sight for their Glock 43X MOS.

2. Holosun 507K X2 – Best Overall

The Holosun 507K X2 is a versatile, feature-packed red dot sight that’s a favorite among many Glock 43X MOS users. It’s a rugged, reliable sight that offers excellent performance and a host of useful features.

Multiple Reticle Options

The 507K X2 offers three reticle options: a 2 MOA dot, a 32 MOA circle, or a combination of both. This versatility allows you to choose the reticle that best suits your shooting style and situation.

Shake Awake Technology

Like the 407K, the 507K X2 also features Holosun’s Shake Awake technology. This feature ensures the sight is always ready when you need it, automatically turning on based on movement.

Solar Failsafe

The 507K X2 features Holosun’s Solar Failsafe technology. This means the sight can operate on solar power in daylight conditions, preserving battery life.

Long Battery Life

With a battery life of up to 50,000 hours, the 507K X2 offers exceptional reliability. You can count on your sight to be ready whenever you need it.

Rugged Construction

The 507K X2 is built to last. Its rugged construction can withstand the recoil and wear and tear that comes with regular use.

Why It’s The Best Overall

The Holosun 507K X2 offers a great balance of versatility, reliability, and durability. Its multiple reticle options, Shake Awake technology, Solar Failsafe, long battery life, and rugged construction make it an excellent choice for any Glock 43X MOS user.

Pros:

  •  Multiple reticle options
  •  Shake Awake technology
  •  Solar Failsafe
  •  Long battery life
  •  Rugged construction

Cons:

  •  Slightly larger than some other options
  •  Some users may find the controls a bit small
  •  More expensive than some other options

My Experience Using the Holosun 507K X2 on My Glock 43X MOS

I’ve been using the Holosun 507K X2 on my Glock 43X MOS for some time now, and I’ve been thoroughly impressed. The multiple reticle options are a game-changer, allowing me to adapt to different shooting scenarios. The Shake Awake and Solar Failsafe technologies ensure the sight is always ready when I need it, and the long battery life is a major plus. Despite being a bit larger and more expensive than some other options, I believe the 507K X2 offers excellent value for the money. It’s a rugged, reliable sight that’s packed with features, making it my top choice for the Glock 43X MOS.

3. Crimson Trace RAD Micro Pro – Best Newcomer

The Crimson Trace RAD Micro Pro is a new red dot sight designed specifically for subcompact pistols like the Glock 43X MOS. It’s a newcomer to the market, but it’s already making a name for itself with its impressive features and performance.

Compact Design

The RAD Micro Pro is designed to be small and lightweight, making it a perfect match for the Glock 43X MOS. Its compact size maintains the balance and concealability of the firearm.

3 MOA Dot

The 3 MOA dot reticle of the RAD Micro Pro is easy to pick up quickly, making it great for rapid target acquisition. It’s also small enough to allow for precise shooting.

Auto-On and Auto-Off

The RAD Micro Pro features an auto-on and auto-off function, ensuring the sight is always ready when you need it and conserving battery life when not in use.

Long Battery Life

With a battery life of up to 20,000 hours, the RAD Micro Pro offers reliability that’s hard to beat. This long battery life means you can count on your sight to be ready whenever you need it.

Durable Construction

Constructed from aluminum, the RAD Micro Pro is built to withstand the recoil and wear and tear that comes with regular use. It’s a rugged sight that’s built to last.

Why It’s The Best Newcomer

The Crimson Trace RAD Micro Pro is an impressive newcomer to the red dot sight market. Its compact design, 3 MOA dot, auto-on and auto-off function, long battery life, and durable construction make it a strong contender for the Glock 43X MOS.

Pros:

  •  Compact and lightweight
  •  3 MOA dot reticle
  •  Auto-on and auto-off function
  •  Long battery life
  •  Durable construction

Cons:

  •  Newer product with less user feedback
  •  Slightly shorter battery life compared to some competitors
  •  May require an adapter plate for some slides

My Experience Using the Crimson Trace RAD Micro Pro on My Glock 43X MOS

I recently had the chance to try out the Crimson Trace RAD Micro Pro on my Glock 43X MOS, and I was quite impressed. The compact design is perfect for the Glock 43X MOS, and the 3 MOA dot is easy to pick up quickly for rapid target acquisition. The auto-on and auto-off function is a great feature that ensures the sight is always ready when I need it. While it’s a newer product with less user feedback, my experience with the RAD Micro Pro has been nothing but positive. It’s a solid newcomer to the red dot sight market and a great option for Glock 43X MOS users.

4. Trijicon RMRcc – Best for Ruggedness

The Trijicon RMRcc is a compact, rugged red dot sight that’s perfect for the Glock 43X MOS. Known for its durability and reliability, the RMRcc sets the standard for toughness in the industry.

Rugged Design

The RMRcc is built to withstand harsh conditions and heavy recoil. Its rugged design ensures that it can handle the wear and tear that comes with regular use.

Adjustable LED

The RMRcc features an adjustable LED, allowing you to choose the brightness level that best suits your shooting environment. This ensures optimal visibility in any lighting condition.

Long Battery Life

With a battery life of up to 4 years, the RMRcc offers exceptional reliability. You can count on your sight to be ready whenever you need it.

3.25 MOA Dot

The 3.25 MOA dot reticle of the RMRcc is easy to pick up quickly, making it great for rapid target acquisition. It’s also small enough to allow for precise shooting.

Waterproof and Shockproof

The RMRcc is waterproof up to 20 meters and shockproof, ensuring it can handle the toughest conditions and keep performing at its best.

Why It’s The Best for Ruggedness

The Trijicon RMRcc is the best choice for ruggedness due to its durable construction, waterproof and shockproof design, and long battery life. It’s built to withstand the harshest conditions and keep performing at its best.

Pros:

  •  Rugged design
  •  Adjustable LED
  •  Long battery life
  •  3.25 MOA dot reticle
  •  Waterproof and shockproof

Cons:

  •  More expensive than some other options
  •  May require an adapter plate for some slides
  •  Battery replacement requires sight removal

My Experience Using the Trijicon RMRcc on My Glock 43X MOS

I’ve been using the Trijicon RMRcc on my Glock 43X MOS for quite some time, and I can confidently say that it’s one of the most rugged and reliable sights I’ve ever used. The adjustable LED and 3.25 MOA dot make target acquisition quick and easy, while the waterproof and shockproof design ensures it can handle anything I throw at it. The long battery life is a major plus, and although it’s more expensive than some other options, I believe the RMRcc is worth the investment for its ruggedness and reliability.

5. Shield RMSc – Best Direct Fit

The Shield RMSc is a compact, lightweight red dot sight that’s a direct fit for the Glock 43X MOS. It’s known for its low profile design and excellent performance, making it a popular choice among Glock 43X MOS users.

Direct Fit

The RMSc is designed to fit directly onto the Glock 43X MOS without the need for an adapter plate. This makes installation easy and ensures a low profile setup.

Compact and Lightweight

The RMSc is small and lightweight, making it a perfect match for the Glock 43X MOS. Its compact size maintains the balance and concealability of the firearm.

4 MOA Dot

The 4 MOA dot reticle of the RMSc is easy to pick up quickly, making it great for rapid target acquisition. It’s also small enough to allow for precise shooting.

Durable Construction

Constructed from aerospace-grade aluminum, the RMSc is built to withstand the recoil and wear and tear that comes with regular use. It’s a rugged sight that’s built to last.

Automatic Brightness Adjustment

The RMSc features automatic brightness adjustment, adjusting the brightness of the dot based on the ambient light conditions. This ensures optimal visibility in any lighting condition.

Why It’s The Best Direct Fit

The Shield RMSc is the best direct fit for the Glock 43X MOS due to its compact size, lightweight design, and easy installation. Its 4 MOA dot, durable construction, and automatic brightness adjustment make it an excellent choice for any Glock 43X MOS user.

Pros:

  •  Direct fit for Glock 43X MOS
  •  Compact and lightweight
  •  4 MOA dot reticle
  •  Durable construction
  •  Automatic brightness adjustment

Cons:

  •  More expensive than some other options
  •  No manual brightness adjustment
  •  Battery replacement requires sight removal

My Experience Using the Shield RMSc on My Glock 43X MOS

I’ve been using the Shield RMSc on my Glock 43X MOS for a while now, and I’ve been really impressed with its performance. The direct fit makes installation a breeze, and the compact size is perfect for the Glock 43X MOS. The 4 MOA dot is easy to pick up quickly, which is great for rapid target acquisition. The automatic brightness adjustment is a handy feature that ensures the dot is always visible, regardless of the lighting conditions. Despite being a bit more expensive than some other options, I believe the RMSc offers excellent value for the money. It’s a solid, reliable sight that’s a perfect fit for the Glock 43X MOS.

FAQS

Can I mount a red dot sight on a non-MOS Glock 43X?

Yes, you can mount a red dot sight on a non-MOS Glock 43X, but it will require milling the slide to accommodate the optic. Alternatively, you can use a mounting plate that replaces the rear sight.

What is the best distance for zeroing a handgun red dot sight?

The best distance for zeroing a handgun red dot sight varies depending on personal preference and intended use. However, many shooters recommend a 25-yard zero for optimal performance.

How do I choose the right red dot sight for my Glock 43X MOS?

When choosing a red dot sight for your Glock 43X MOS, consider factors such as compatibility with the RMSc footprint, your budget, the sight’s features, its reliability, and how well it fits the firearm.

Do I need an adapter plate to mount a red dot sight on my Glock 43X MOS?

Some red dot sights may require an adapter plate to mount on the Glock 43X MOS, while others can be mounted directly without a plate. Make sure to check the compatibility of the red dot sight with the Glock 43X MOS’s RMSc footprint before purchasing.

How do I maintain the battery life of my red dot sight?

To maintain the battery life of your red dot sight, consider using features like auto-on and auto-off functions, which help conserve battery life when the sight is not in use. Additionally, choose a red dot sight with a long battery life and replace the battery as recommended by the manufacturer.

Final Verdict

After spending considerable time with each of these red dot sights on my Glock 43X MOS, I’ve come to appreciate the unique strengths each one brings to the table. The Holosun 407K and 507K X2, Crimson Trace RAD Micro Pro, Trijicon RMRcc, and Shield RMSc all offer excellent performance and features that make them worthy contenders.

However, if I had to pick one as the best overall, I’d go with the Holosun 507K X2. Its multiple reticle options, Shake Awake technology, Solar Failsafe, long battery life, and rugged construction make it an excellent choice for any Glock 43X MOS user. It’s a versatile, reliable, and durable sight that’s packed with features, making it my top choice for the Glock 43X MOS.

Remember, the best sight for you will depend on your specific needs and preferences. So, take the time to consider what features are most important to you before making your decision. Happy shooting!

About the author

The name's Chris. Just a regular dude who loves firearms. I've been shooting since I was a kid. My old man taught me the ropes.

I'll never forget the first time I missed an easy shot on a buck, thanks to a bum scope. The image was fuzzier than my dog's butt. After that, I got obsessed with understanding scopes. What makes the good ones tick and the bad ones trash. After a few years and a few thousand bucks, I learned what separates the winners from the losers. Once I had a good stockpile of knowledge, I launched this site.

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