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Glock 43X MOS 9mm 3.41" Barrel Optic Ready 15 Round
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
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SKU: PX4350203FRMOS-764503073441
Overview
Built around Glock’s Slimline profile, this pistol is suited to hunters and outdoorsmen who want a compact 9mm option for carry or general field use. The MOS slide cuts support specific micro-optics, while the Slim Mounting Rail adds room for accessories when a setup calls for it. Its 15-round capacity and Safe Action system make it a practical choice for users who value a streamlined handgun with optic-ready flexibility. The compact dimensions and black matte finish keep the package straightforward and purpose-driven without adding unnecessary bulk.
Why Hunters Choose the Glock
Modular Optic
Slide cuts for specific micro-optics
Glock Slim
Mounting Rail supports accessory mounting
Slimline Design
Emphasizes comfortable concealability
15-round Capacity
In 9mm Luger
Safe Action
Three separate automatic safeties
Key Features
- Chambered in 9x19 / 9mm Luger for a familiar defensive and field-use cartridge.
- Modular Optic System with slide cuts designed for specific micro-optics.
- GLOCK Slim Mounting Rail allows accessory mounting.
- Slimline design supports comfortable concealability.
- 15-round capacity in the G43X FR MOS configuration.
- Safe Action system with three separate automatic safeties.
- Black matte finish with black polymer frame and fixed white-dot sights.
Best Used For
- Concealed carry users wanting a slimline 9mm with a 15-round capacity
- Shooters planning to mount specific micro-optics on a compact handgun
- Hunters or outdoorsmen needing a carry pistol with accessory rail compatibility
- Users who prefer Glock Safe Action operation and standard white-dot sights
- Those seeking a compact sidearm for everyday carry and range use
Specifications
| Action | Safe Action |
|---|---|
| Barrel Length | 3.41 |
| Blade Finish | Black Matte |
| Caliber | 9MM LUGER |
| Capacity | 15 |
| Features | Front Rail | Modular Optic System |
| Frame Description | Black Polymer |
| Modelseries | 43X FR MOS |
| Overall Length | 6.5 in |
| Safety | Safe Action-3 Separate Automatic Safeties |
| Sight | FT: White Dot RR: White Outline |
| Weight | 16.4 oz |
Pros
- Modular Optic System with slide cuts for specific micro-optics
- GLOCK Slim Mounting Rail supports accessory mounting
- Slimline design emphasizes comfortable concealability
- 15-round capacity in 9mm Luger
- Safe Action system with three separate automatic safeties
Considerations & Trade-offs
- The optic-ready slide cuts are designed for specific micro-optics, so compatibility depends on the optic selected rather than being universal.
- The Slimline format is built for comfortable concealability, which can mean a more compact grip profile than full-size duty pistols.
- Capacity is listed at 15 rounds, but magazine availability and any local restrictions may affect how it is configured for use.
- The 3.41" barrel and 6.50" overall length place it in a compact class, so it may involve a trade-off between concealability and shootability for some users.
Suggested Comparisons
- Subcompact 9mm pistols
- Optic-ready handguns
- Concealed carry pistols
- Slimline frame pistols
Suggested Accessories
- Micro-optic
- Pistol magazine
- Pistol holster
- Weapon light
Frequently Asked Questions
Is the Glock 43X MOS optic ready out of the box?
Yes. The description says the G43X MOS features slide cuts designed for specific micro-optics and lists a Modular Optic System.
What caliber does this pistol use?
It is chambered in 9x19 and listed as 9mm Luger.
What is the magazine capacity?
The listed capacity is 15 rounds.
Does it have a rail for accessories?
Yes. The product description states it includes the GLOCK Slim Mounting Rail, and the features list also notes a Front Rail.
What sight setup is included?
The specifications list a front sight with a white dot and a rear sight with a white outline.