SIG SAUER P320-XCOMPACT 9mm Pistol with ROMEO-X SIG-LOC PRO

P320-XCOMPACT with installed ROMEO-X SIG-LOC PRO

This SIG SAUER P320-XCOMPACT is the optic-equipped 9mm variant identified by manufacturer part 320XC-9-BXR3-RXSL. It combines a 3.6-inch barrel, black XCompact grip module, factory-installed ROMEO-X SIG-LOC PRO optic and XRAY3 day/night sights. The package includes two 15-round steel magazines. These specifics distinguish it from iron-sight-only P320-XCOMPACT models, 10-round versions and similarly named pistols supplied with a different ROMEO optic.

Compact size and X-Series layout

SIG SAUER lists a 7-inch overall length, 1.4-inch overall width, 6.2-inch height and 25.8-ounce weight for this exact model. The 3.6-inch, non-threaded barrel is carbon steel. These figures help compare the XCOMPACT against a full-size P320 and assess storage or holster dimensions. Because an optic is already installed, verify holster clearance for the optic and the actual grip and slide configuration instead of relying on the P320 family name alone.

The pistol uses a Nitron-finished stainless-steel slide, a medium XCompact polymer grip module in black, an X straight trigger and striker-fired action. SIG SAUER lists an M1913 accessory rail. The compact grip module is part of the manufacturer’s X-Series design, which pairs a compact slide with a grip intended for a secure hand position. The rail gives shoppers an identifiable mounting interface, but a light or other rail accessory is not included with this listing.

What the optic package includes

The manufacturer’s model table specifically names ROMEO-X SIG-LOC PRO as the installed electro-optic and SIG-LOC PRO as the RX footprint. That is more specific than merely saying the slide is optic-ready. The XRAY3 day/night sights are listed alongside the installed optic, providing the factory mechanical sighting components for this configuration. Distinguish this combination from the ROMEO-RS PRO or ROMEO-X PRO packages when comparing prices, dimensions or optic-related accessories.

Optic settings, power supply and maintenance should be confirmed in the supplied optic documentation rather than borrowed from a different ROMEO-X model. If you plan to replace the optic, check the exact mounting system and the new sight’s fit. If you plan to use a retention holster, confirm that its maker supports this installed optic and the XCOMPACT slide. These fit checks are especially relevant because P320 models share a broad platform name while varying considerably in installed equipment.

Exact-model specifications

• Part number: 320XC-9-BXR3-RXSL.
• Caliber: 9mm Luger.
• Barrel: 3.6-inch carbon steel, non-threaded.
• Action and trigger: striker fired with X straight trigger.
• Optic: factory-installed ROMEO-X SIG-LOC PRO; SIG-LOC PRO RX footprint.
• Sights: XRAY3 day/night sights.
• Magazines: two 15-round steel magazines.
• Slide and grip: Nitron-finished stainless slide, black medium XCompact polymer grip module.
• Rail: M1913 accessory rail.
• Manufacturer-listed dimensions and weight: 7 inches long, 1.4 inches wide, 6.2 inches high; 25.8 ounces.

Comparing compact P320 variants

This listing is for the 15-round, SIG-LOC PRO optic-equipped XCOMPACT identified above. A similar title may describe a pistol with a different magazine capacity, only an optic-ready slide or a different sight mounted at the factory. The full part number is the best reference when confirming which version you are ordering. The magazines included with this SKU may not be permissible in every jurisdiction; check applicable rules and transfer requirements before purchase.

As with any handgun, review the manufacturer’s firearm and optic manuals, follow safe handling practices and arrange secure storage. This product description identifies the supplied firearm, installed optic and listed magazines only. It does not represent a separate optic or accessory purchase and should not be read as including ammunition, a holster or other equipment not expressly listed.