# Glock G20 Gen5 MOS 10mm Auto - Precision Power, Optics-Ready Sidearm

**Brand:** Glock
**Category:** Full Size Handguns
**Caliber:** 10MM AUTO

## Specifications

- **Caliber:** 10MM AUTO
- **Barrel Length:** 4.6"
- **Capacity:** 15 rounds
- **Finish:** Black
- **Weight:** 88 oz
- **Overall Length:** 8.03"
- **UPC:** 764503059889
- **SKU:** UCDSUKvaL

## Description

The Glock G20 Gen5 MOS is a full-size 10mm Auto striker-fired pistol with a 4.61-inch barrel, 15+1 capacity, and 29.81 oz weight. The MOS (Modular Optics System) cut on the slide supports direct mounting of common red dot sights without a separate adapter. Finish is Black nDLC (Nitride). The polymer frame includes interchangeable backstraps.

### Key Specifications
- **Brand:** Glock
- **Model:** G20 Gen5 MOS
- **UPC:** 764503059889
- **Action Type:** Semi-Automatic (Safe Action)
- **Caliber:** 10mm Auto
- **Barrel Length:** 4.61 inches
- **Capacity:** 15+1 rounds
- **Weight:** 29.81 oz
- **Finish:** Black nDLC
- **Sights:** Fixed Glock Sights

### Detailed Features

The MOS cut gives you a standardized optics interface so you can mount a red dot without extra machining. The nDLC slide finish resists corrosion and wear. Interchangeable backstraps let you adjust grip circumference for hand size. The Safe Action trigger system integrates a firing pin safety and trigger block, with no external manual safety. At 29.81 oz unloaded, the G20 is noticeably heavier than a 9mm Glock of the same size, which is partly absorbed by the 10mm recoil.

## Frequently Asked Questions

**Q: What caliber is the Glock G20?**

A: The G20 Gen5 MOS is chambered in 10mm Auto.

**Q: Who makes the G20?**

A: The G20 is made by Glock.

**Q: What type of firearm is the G20?**

A: It is a full-size striker-fired pistol with a polymer frame.

**Q: What is the barrel length of the G20?**

A: The barrel is 4.61 inches long.

**Q: How many rounds does the G20 Gen5 MOS hold?**

A: It has a 15+1 capacity.

**Q: Is the G20 Gen5 optics-ready?**

A: Yes. The G20 Gen5 MOS has a Modular Optics System (MOS) cut on the slide that supports direct mounting of red dot sights.

**Q: Where can I buy the G20 Gen5 MOS?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The G20 Gen5 MOS draws a consistent crowd: 10mm fans who want a Glock platform, hunters looking for a sidearm, and shooters who want the MOS optics capability on a high-power pistol.

10mm performance gets the most discussion. The caliber is valued for its stopping power in hunting and self-defense contexts, and the G20 is one of the primary platforms for it.

Reliability is rarely questioned. Glock's reputation carries through, and G20 owners report problem-free operation.

The recurring criticisms: grip size feels large to some shooters with smaller hands, and the 10mm recoil is noticeable, manageable for most owners but acknowledged as more than what they'd get from a 9mm. Neither of these is unique to the MOS version.

## Pricing

**2 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $759.99 |
| Guns Com | $2824.99 |

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