# Glock G43X MOS Gen 1: Compact 9mm Pistol with Optics Mount

**Brand:** Glock
**Category:** Compact Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 3.4"
- **Capacity:** 10 rounds
- **Finish:** Gas Nitride
- **Weight:** 22.96 oz
- **Overall Length:** 6.5"
- **UPC:** 764503046629
- **SKU:** UCDSUKs8T

## Description

The Glock G43X MOS is a compact 9mm pistol with a 3.41-inch barrel, the Glock Marksman Barrel for improved accuracy, and an MOS-cut slide for direct red dot mounting. It runs on a striker-fire mechanism and ships with fixed sights. The frame is polymer with a black nDLC-coated slide.

### Key Specifications
- **Brand:** Glock
- **Model:** G43X MOS
- **Caliber:** 9mm Luger (9x19 Para)
- **Action Type:** Striker Fire
- **Capacity:** 10+1 rounds
- **Barrel Length:** 3.41 inches
- **Overall Length:** 6.5 inches
- **Weight:** approximately 22.96 oz (1.1 lbs)
- **Frame Material:** Polymer
- **Finish:** Black nDLC on slide, black on frame
- **Sights:** Fixed sights

### Detailed Features
1. **Modular Optics System (MOS):** The slide is pre-cut for red dot sights, allowing direct mounting without adapter plates.
2. **Glock Marksman Barrel (GMB):** The GMB has tighter tolerances than earlier Glock barrels, which translates to improved accuracy, especially with quality ammunition.
3. **Slim Frame Profile:** The grip is narrow enough for comfortable daily carry in an IWB or appendix holster.
4. **Lightweight Build:** At just over 1 lb, it carries easily throughout the day.

### Usage Scenarios
- Everyday concealed carry where the slim profile and light weight are priorities.
- Shooting applications where the MOS optics cut allows red dot use for faster target acquisition.
- Home defense with a gun that's also suitable for daily carry.

## Frequently Asked Questions

**Q: What caliber is the G43X?**

A: The G43X is chambered in 9mm Luger.

**Q: Who makes the G43X?**

A: The G43X is made by Glock.

**Q: What type of firearm is the G43X?**

A: It is a compact handgun with a striker-fire action and a polymer frame.

**Q: What is the barrel length of the G43X?**

A: The barrel is 3.41 inches long.

**Q: How many rounds does the G43X hold?**

A: It has a 10+1 capacity.

**Q: Is the G43X optic-ready?**

A: Yes, the G43X MOS has a slide cut for direct red dot mounting without adapter plates.

**Q: Where can I buy the G43X?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The G43X MOS gets strong marks across most user categories. The combination of compact size, MOS optics capability, and Glock reliability is the core appeal, and most owners report the gun delivers on all three.

The MOS optics system is frequently cited as a key advantage. Being able to add a red dot without extensive modification is a genuine selling point, and the range of compatible sights is well-regarded. Reliability is consistent with Glock's reputation, very few malfunctions reported across a wide user base.

The slim grip profile gets praise for carry comfort. The Glock Marksman Barrel is noted as an improvement over older Glock barrels in terms of accuracy.

Capacity is the most common complaint. 10 rounds is lower than some competing compact pistols. Ergonomics draw mixed reactions; most users find the grip comfortable, but some report that rapid-fire sequences feel less controlled compared to guns with more aggressive texturing. Trigger preferences vary, as always with Glock. Some users run it stock, others upgrade immediately. Aftermarket support is extensive.

## Pricing

**5 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $450.99 |
| Brownells | $484.00 |
| Guns Com | $484.00 |
| Gunbuyer Com | $485.00 |
| Grabagun Com | $485.00 |

## Reviews

**Average Rating:** 5.0/5 (1 reviews)

> **joel** (5/5): The Glock 43X might be my favorite concealed carry Glock to date. I remember the first time I shot it at the range (after transitioning out of the Marine Corps, where I carried the 1911); it felt like...

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*Data from [GunsNation](https://gunsnation.com)*