# Sig Sauer P320 Compact RX - Modular 9mm Optics-Ready Pistol

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

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 3.9"
- **Capacity:** 15 rounds
- **Finish:** Black
- **Weight:** 25.8 oz
- **Overall Length:** 7.2"
- **UPC:** 798681558186
- **SKU:** UCE3nOQJu

## Description

The Sig Sauer P320 Compact RX is a 9mm semi-automatic pistol designed around the P320's modular chassis. The RX variant adds a slide cut for red dot optics and ships with X-RAY 1-Dot front and X-RAY 2-Dot rear sights as a fallback.

### Key Specifications
- **Manufacturer:** Sig Sauer
- **Model:** P320
- **Series:** Compact RX
- **Caliber:** 9mm Luger
- **Barrel Length:** 3.9 inches
- **Total Length:** 7.2 inches
- **Total Height:** 6.1 inches
- **Weight:** 1.6 lbs (25.8 oz)
- **Capacity:** 15 rounds
- **Action Type:** Double Action
- **Frame Material:** Polymer
- **Barrel Material:** Carbon Steel
- **Grip Material:** Polymer
- **Sights Front/Rear:** X-RAY 1-Dot / X-RAY 2-Dot

### Detailed Features

The optics-ready slide accepts red dot sights directly, giving shooters faster target acquisition than iron sights in most conditions. The X-RAY sights that come installed are usable on their own if the shooter prefers to skip the optic.

The textured polymer grip provides a secure hold and the controls are positioned for natural thumb access. Both frame and slide carry a Nitron finish that resists corrosion and wear.

The modular FCU design lets users swap grip modules for size, different palm swell options are available separately, and the same serialized chassis can move between compact and full-size configurations with the right parts.

The double-action trigger operates consistently across shots with no external safety lever, which simplifies the manual of arms.

### Usage Scenarios

The Compact RX works well for everyday carry, where the 3.9-inch barrel and 25.8 oz weight keep the package manageable. The optics-ready slide makes it a practical choice for competitive shooting setups where a dot sight is preferred. Home defense is a straightforward fit given the 15-round capacity and easy night sight swaps.

## What Customers Say

*AI-generated insights from customer reviews*

The P320 Compact RX draws generally positive feedback, with a few recurring criticisms.

The modular design is the most-cited strength. Owners appreciate being able to swap grip modules for fit or convert between frame sizes using the same FCU. The optics-ready slide is well-received. Users who add a red dot report a noticeable improvement in target acquisition speed, and the X-RAY sights hold up as a standalone option if the shooter skips the optic.

Ergonomics and reliability get consistent praise. Most owners report no meaningful malfunctions across a range of ammunition types, and the grip texture is described as comfortable for extended sessions.

The trigger pull gets mixed reviews. Some shooters find it acceptable for a carry pistol, while others consider it heavier or less refined compared to other pistols in the price range. It is serviceable but not a standout.

Size is another nuance. The Compact label is relative. Shooters coming from subcompact platforms find it noticeably larger, and those with smaller frames may prefer a grip module swap before carrying. Weight is in line with similar polymer-framed pistols at 25.8 oz, though a handful of reviewers found it heavier than expected.

Price is the other common point of friction. The RX variant costs more than the base P320 Compact, and buyers who don't plan to run an optic sometimes question whether the slide cut justifies the difference.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $778.99 |

## Similar Products

- [Sig Sauer P320 RXP Compact 9mm - Striker-Fired Red Dot Ready](https://gunsnation.com/p/sig-sauer-p320-rxp-compact-9mm-striker-fired-red-dot-ready/UCE3nOhQQ)
- [Sig Sauer P320 Compact 9mm Modular Night Sight Pistol](https://gunsnation.com/p/sig-sauer-p320-compact-9mm-modular-night-sight-pistol/UCE3nO4VC)
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*Data from [GunsNation](https://gunsnation.com)*