Glock 43X MOS Review

Published on September 3, 2025
Duration: 9:30

This review of the Glock 43X MOS highlights its appeal as a slim, 9mm concealed carry option. While acknowledging its similarity to other micro-compacts, the reviewer finds the increased grip length over the standard 43 beneficial for shooting comfort. The MOS variant's red dot compatibility and the option for higher-capacity aftermarket magazines are noted, alongside a preference for aftermarket sights and Glock's reliable factory magazines.

Quick Summary

The Glock 43X MOS is a popular choice for concealed carry due to its slim profile and comfortable grip length, comparable to a Glock 19. Its MOS system allows for easy red dot sight mounting, and while standard capacity is 10 rounds, aftermarket magazines can increase this to 15, though they require an additional magazine catch. Many users also opt for aftermarket sights for improved performance.

Chapters

  1. 00:52Introduction to Glock 43X MOS
  2. 01:33Comparison to Micro Double Stacks
  3. 01:58Glock 19 Comparison
  4. 02:14Aftermarket Magazines & Capacity
  5. 02:52Glock 26 Comparison
  6. 04:11Sights and Modifications
  7. 04:50MOS - Red Dot Compatibility
  8. 05:15Concealed Carry Considerations
  9. 06:06Magazine Reliability
  10. 07:02Shooting at 80 Yards
  11. 07:30Accuracy Assessment
  12. 07:53Final Impressions

Frequently Asked Questions

What are the key advantages of the Glock 43X MOS for concealed carry?

The Glock 43X MOS is praised for its slim profile, making it comfortable for inside-the-waistband carry. Its grip length, similar to a Glock 19, aids in shootability, while the MOS system allows for easy red dot sight integration, enhancing aiming capabilities for concealed carry.

How does the Glock 43X MOS compare to other micro-compact pistols?

Compared to other micro-compacts like the P365 and Hellcat, the 43X MOS offers a grip length that many find more comfortable than the standard Glock 43. Its thinness is a primary advantage for concealment, though standard capacity is 10 rounds without aftermarket modifications.

Can the Glock 43X MOS accept higher capacity magazines?

Yes, the Glock 43X MOS can accept higher capacity magazines, notably from Shield Arms, which can bring the capacity up to 15 rounds. However, this requires the use of an aftermarket magazine catch, and these magazines are generally more expensive.

Why do many shooters prefer aftermarket sights on the Glock 43X MOS?

Many shooters, including the reviewer, find factory Glock sights to be a common area for upgrades. Aftermarket sights, such as night sights or fiber optic sights, are often preferred for better visibility and faster target acquisition, especially in low-light conditions.

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