# SIG Sauer P320 - 9mm Modular Night Sight Pistol, Black Nitron

**Brand:** SIG Sauer
**Category:** Full Size Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 4.7"
- **Capacity:** 17 rounds
- **Finish:** Blued
- **Weight:** 29.4 oz
- **Overall Length:** 8"
- **UPC:** 798681697458
- **SKU:** UCE3nP0YE

## Description

The SIG Sauer P320 Full is a striker-fired 9mm pistol with a 4.7-inch barrel, a DeltaPoint Pro optic footprint, SIGLite tritium night sights, and two 17-round steel magazines. The modular design lets users swap frames, grips, slides, and barrels.

### Key Specifications
- **Caliber:** 9mm Luger (9x19 Para)
- **Action:** Striker Fired
- **Capacity:** 17 + 1 Rounds
- **Barrel Length:** 4.7 inches
- **Weight:** 29.4 oz (1.84 lbs)
- **Sights:** Tritium Night Sights (SIGLite Front & Rear)
- **Optic Mount:** DeltaPoint Pro footprint
- **Finish:** Black Nitron

### Detailed Features
The carbon steel barrel has a DLC (Diamond Like Carbon) coating for wear and corrosion resistance. Tritium night sights are factory-installed, giving immediate low-light capability without an optic upgrade. The DeltaPoint Pro footprint on the slide accepts Leupold DeltaPoint Pro red dots directly.

The medium full-size grip module fits most adult hands and can be swapped for other Sig P320 grip modules without tools. The FCU (Fire Control Unit) is the serialized component, which means other parts can be changed out freely.

Two 17-round steel magazines are included.

## Frequently Asked Questions

**Q: What caliber is the SIG Sauer P320 Full?**

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

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

A: It is made by SIG Sauer.

**Q: What type of firearm is the SIG Sauer P320 Full?**

A: It is a full-size striker-fired semi-automatic handgun.

**Q: How many rounds does the SIG Sauer P320 Full hold?**

A: It has a 17+1 capacity and comes with two 17-round steel magazines.

**Q: What is the barrel length of the SIG Sauer P320 Full?**

A: The barrel is 4.7 inches long.

**Q: Is the SIG Sauer P320 Full optic-ready?**

A: Yes. The slide has a DeltaPoint Pro footprint that accepts Leupold DeltaPoint Pro red dots directly. It also comes with factory-installed SIGLite tritium night sights.

**Q: Where can I buy the SIG Sauer P320 Full?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The P320 9mm with night sights gets largely positive feedback, centered around a few consistent themes.

Modularity is the most frequently praised aspect. Users appreciate being able to change grip sizes and, in theory, calibers. The optics-ready cut draws attention from anyone who runs or plans to run a red dot.

Reliability and accuracy are rated highly across multiple types of use. Night sights are generally considered a practical inclusion, especially for owners who plan to use the gun for home defense.

Trigger pull draws the most mixed feedback. Some users find it clean and consistent; others describe a feel that took adjustment compared to other pistols they'd shot. This is a common enough topic that aftermarket trigger upgrades have a strong market for the P320.

Weight is raised occasionally as a consideration. At 29.4 oz the full-size is not especially light, which matters more for carry than for home or range use.

The P320 is generally seen as a credible option across experience levels, though some buyers compare the price unfavorably to competing 9mm pistols with similar features.

## Pricing

**16 offers available**

| Vendor | Price |
|--------|-------|
| Bereli | $399.00 |
| Grabagun Com | $469.99 |
| Gritrsports Com | $469.99 |
| Shootingsurplus Com | $471.65 |
| Classicfirearms Com | $487.82 |
| Kygunco Com | $498.12 |
| Impactguns Com | $498.89 |
| Brownells | $499.99 |
| Centerfiresystems Com | $506.99 |
| Buds Gun Shop | $508.49 |

*...and 6 more offers*

## Reviews

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

> **Nick55** (5/5): It's a really nice 9mm full-size gun! Mine has about 2k rounds through it without any issues. 

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