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SIG SAUER P320 Safety Information
July 29, 2025
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Sig Sauer P320 RXP X-Compact 9mm Pistol with ROMEO1 PRO Optic

  • Item Number: 320XC-9-BXR3-RXP
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  • View More Items by Sig Sauer
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  • Condition: NEW
Sig Sauer P320 RXP X-Compact 9mm Pistol with ROMEO1 PRO Optic
$979.99 $1,079.99

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Product Description

What's in the Box

  • Sig Sauer P320 RXP XCOMPACT 9mm Pistol
  • (2) 15-Round Magazines
  • Cable Lock
  • Owner's Manual

Featuring SIG SAUER's exclusive slide-mounted optic, the ROMEO1 PRO, the RXP will ensure faster sight acquisition on target. Simply put, it will make a good shooter a great shooter. Shoot confidently with faster target acquisition and improved accuracy. Installed. Zeroed. And backed by the quality of the SIG name.

One of the most popular P320 pistols just got better and joins the Red Dot Revolution. The P320 XCOMPACT now comes equipped with the ROMEO1 PRO reflex optic right out of the box. The 3.6” barrel, XSeries slide, flat trigger, and XSeries compact grip module are now joined with a 6MOA slide mounted optic, along with perfectly co-witnessed XRay3 day/night suppressor-height sights. The P320 XCOMPACT RXP represents the best balance of precision, comfort, and capability in the CCW market. Each P320 XCOMPACT RXP comes standard with two (2) 15rd steel mags.

Firearm Features

  • ROMEO1 PRO Reflex Optic Installed with Suppressor XRay 3 Day/Night Sights
  • XCompact Grip Module with Integrated Magwell
  • XSeries Flat Trigger for a clean 90 degree break
  • Extended Ambidextrous Slide Catch Lever
  • 3.6” Barrel and Compact Length XSeries Slide
  • (2) 15 Round Steel Magazines

Firearm Specifications

  • Manufacturer: Sig Sauer
  • Model: P320 RXP X-Compact
  • Caliber: 9mm Luger
  • Barrel Length: 3.6"
  • Overall Length: 7"
  • Overall Height: 6.2"
  • Overall Width: 1.4"
  • Sight Radius: 5.5"
  • Weight (with magazine): 25.8 oz.
  • Grip Module: Compact X-Series Medium
  • Slide Material: Stainless Steel
  • Slide Finish: Nitron
  • Sights: XRAY3 Suppressor Sights
  • Reflex Optic: ROMEO1 PRO
  • Trigger: Striker-Fired X-Series Flat Trigger

Customer Comments & Questions

Customer Reviews

(5 out of 5) Sig p320 x compact RXP
by Will from Bradford, ME on June 10, 2020

The weapon arrived quickly. I was kept in the loop with emails about shipping and delivery. I have nothing but good things to say. They were the only website to have this model in stock. I will continue to buy from from.

(5 out of 5) Impressive Firearm
by MH from Columbia, SC on June 18, 2020

This firearm was extremely hard to find during the pandemic.. After finding this product and a referral from my firearm distributor I ordered.. they are extremely responsive through Facebook but after waiting a week I called in and asked it to be shipped over night.. the extra $30 was worth it.. came in the next day and I lubed it it and went straight to the range.. shoots better than my full size.. the romeo was not zeroed in but Ive had fun doing that myself.. if you want this firearm get it.. I do not regret spending the $ AT ALL..

(5 out of 5) Perfect CCW
by Jace from Denver, CO on July 7, 2020

I was a little skeptical when I saw this Sig on the Sportsman Outdoor Superstore website because it was Out Of Stock on all the other sites. I read the fine print and it says they keep up to the minute accurate stock counts so I went ahead and ordered. To my pleasant surprise, it shipped in 15 days and was delivered to my FFL 3 days later! Great work during a pandemic and nation wide firearm shortage. I will be back for all my firearm needs.

(4 out of 5) Great buy, great price. Go for the express shipping.
by Random from Braselton, GA on April 19, 2022

I am very pleased with my purchase of the Sig Sauer P320 RXP X-Compact 9mm Pistol with ROMEO1 PRO Optic.

Sportsman's Outdoor staff was very quick to respond to answer my questions.

The pistol came in in perfect condition. I originally ordered with standard shipping. I wont do that again. After 7 days my gun still had not shipped. I chatted with them and changed the shipping to overnight. It came in the next day. Save the head ache and just order express unless you have the patience of Job. Over all, my experience was good. Standard shipping times could be better but otherwise great buy and great experience.