# Sig Sauer P320 M18: 9mm Compact Striker-Fire with Night Sights

**Brand:** SIG Sauer
**Category:** Compact Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 3.9"
- **Capacity:** 10 rounds
- **Finish:** Black
- **Weight:** 28.1 oz
- **Overall Length:** 7.2"
- **UPC:** 798681618040
- **SKU:** UCE3nOftI

## Description

The Sig Sauer P320 M18 is a striker-fired 9mm pistol with a 3.9-inch barrel, Coyote PVD frame and grip, Siglite front and rear night sights, and an ambidextrous manual safety. Three magazines are included.

### Key Specifications
- **Brand:** Sig Sauer
- **Model:** P320 M18
- **Caliber:** 9mm Luger
- **Action:** Striker Fire
- **Capacity:** 10+1 rounds
- **Barrel Length:** 3.9 inches
- **Weight:** 28.1 ounces (1.75 lbs)
- **Frame Material:** Stainless Steel with Coyote PVD Finish
- **Grip Material:** Coyote Polymer (textured)
- **Sights:** Siglite Front & Night Sight Rear Plate
- **Safety Type:** Ambidextrous Manual

### Detailed Features
The striker-fire action delivers a consistent pull from shot to shot. Siglite night sights are standard at both ends. The front dot and rear plate combination works well in low-light conditions without adding a weapon light. The textured Coyote polymer grip holds securely under recoil and adverse conditions.

The Coyote PVD finish resists corrosion and wear. Three magazines in the box mean you don't have to buy spares immediately.

The modular chassis design allows changing grip sizes and slides, which gives the platform flexibility over time.

## Frequently Asked Questions

**Q: What caliber is the P320 M18?**

A: The P320 M18 is chambered in 9mm Luger.

**Q: Who makes the P320 M18?**

A: The P320 M18 is made by Sig Sauer.

**Q: What type of firearm is the P320 M18?**

A: It is a compact striker-fired semi-automatic pistol.

**Q: What is the barrel length of the P320 M18?**

A: The P320 M18 has a 3.9-inch barrel.

**Q: How many rounds does the P320 M18 hold?**

A: It has a 10+1 capacity. Three steel magazines are included.

**Q: Is the P320 M18 optic-ready?**

A: Yes, the P320 M18 is optic-ready and comes with a night sight rear plate.

**Q: Where can I buy the P320 M18?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> I don't like this safety safety gets on my nerves and the reason why I gets on my nerves is because it is really small.
>
> — [Colion Noir](https://www.youtube.com/watch?v=SAR2rllqwhw&t=150s)

> Nice take up strong wall crisp break kind of fall short on the crispness of the break but it still crispy enough to warrant a smile.
>
> — [Colion Noir](https://www.youtube.com/watch?v=SAR2rllqwhw&t=241s)

> I love the characteristic of the recoil largely because like I said to shoulder slide with the log grip the trigger is really nice.
>
> — [Colion Noir](https://www.youtube.com/watch?v=SAR2rllqwhw&t=349s)

> This grip texturing is awesome this this grip suction is freakin awesome actually like this gut is not going anywhere.
>
> — [Colion Noir](https://www.youtube.com/watch?v=SAR2rllqwhw&t=431s)

## What Customers Say

*AI-generated insights from customer reviews*

The Sig Sauer P320 M18 gets generally favorable feedback. Modularity is the most discussed feature. The ability to swap grip sizes and slides to fit different shooters or applications is valued by owners who want one platform to cover multiple roles.

The compact dimensions and comfortable grip are consistently praised. Most owners find it balanced and easy to control.

The night sights are called out specifically as a practical feature, particularly by owners who use the pistol for home defense or carry. The trigger pull draws positive remarks for smoothness and consistency.

Reliability is a strong theme. Owners report dependable performance across different ammunition types.

On the other side, some buyers note the weight as slightly heavier than other compact 9mm options. Occasional discussions about the striker-fired safety system come up among shooters who carry with one in the chamber and want to weigh the handling implications. Modularity occasionally draws the counterpoint that it adds complexity for shooters who just want a simple carry gun. Overall sentiment is clearly positive.

## Pricing

**2 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $649.99 |
| Guns Com | $652.99 |

## Similar Products

- [Sig Sauer P320 M18 - Coyote Brown 9mm Compact Handgun](https://gunsnation.com/p/sig-sauer-p320-m18-coyote-brown-9mm-compact-handgun/UCE3nOdAC)
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- [Sig Sauer P320 Compact 9MM Striker-Fire Handgun - MA Legal](https://gunsnation.com/p/sig-sauer-p320-compact-9mm-striker-fire-handgun-ma-legal/UCE3nOP4G)
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*Data from [GunsNation](https://gunsnation.com)*