The SIG Sauer P320 X-Compact is a 9mm Luger striker-fired pistol that ships here with a SIG ROMEO-X red dot factory-installed on the slide, so there is no separate optic purchase or mounting plate to source (brand part no. 320XC-9-BXR3-RXSL). SIG Sauer builds the ROMEO-X from 7075 aircraft-grade alloy with a patent-pending flexure-arm adjustment system, and it projects a 2 MOA dot inside a 32 MOA circle across 15 brightness settings, including night-vision-compatible modes. The X-Series grip module improves recoil management over the standard P320 grip, and X-Ray3 day/night iron sights co-witness with the optic for a backup sighting option. It ships with two 15-round magazines and an M1913 accessory rail up front for a light or laser.

Key Specifications

• Caliber: 9mm Luger.
• Barrel Length: 3.6 inches.
• Capacity: 15+1 rounds.
• Optic: a factory-installed SIG ROMEO-X red dot with a 2 MOA dot / 32 MOA circle reticle and 15 brightness settings.
• Sights: X-Ray3 day/night sights, co-witnessed with the optic.
• Grip Module: XSeries, shaped for improved recoil management.
• Rail: an M1913 accessory rail.
• Weight: approximately 25.3 oz with magazine.
• Magazines Included: two 15-round magazines.

Frequently Asked Questions

Does this pistol come with a red dot installed? Yes, it ships with a SIG ROMEO-X red dot factory-installed on the slide.

Do the iron sights co-witness with the optic? Yes, the X-Ray3 day/night sights are set up to co-witness with the ROMEO-X.

How many magazines are included? It ships with two 15-round magazines.

Buy the SIG Sauer P320 X-Compact 9mm Pistol w/ROMEO-X

A factory-installed ROMEO-X red dot takes the guesswork out of setting up an optic-ready pistol. Browse more of SIG Sauer’s semi-auto handguns and order yours from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.