SIG SAUER P365X 9MM ROMEO-X SIG-LOC 10+1

The SIG SAUER P365X ROMEO-X SIG-LOC is a factory-configured 9mm micro-compact built around the P365X platform and supplied with a ROMEO-X reflex sight already mounted to the slide. This exact 10-round configuration, manufacturer part number 365X9BXR3RXSL10, combines a 3.1-inch barrel, XSeries ergonomics, night-sight backup capability, and a manual safety in a compact carry-oriented package.

Key Features

• 9mm Luger, striker-fired semi-automatic operation
• 3.1-inch barrel and compact P365X format
• 10+1 capacity with two 10-round magazines
• Factory-installed ROMEO-X SIG-LOC reflex optic
• XRAY3 day/night iron sights for a usable backup sighting system
• XSeries grip module and flat-faced trigger
• Manual safety
• Black Nitron-finished serrated stainless-steel slide
• Integrated accessory rail

P365X Size with XSeries Control

The P365X uses the short 3.1-inch barrel and slide length associated with the original P365 while adding the longer XSeries grip profile. That combination gives the shooter more gripping surface without moving the pistol into a full-size footprint. The textured polymer grip module, undercut trigger guard, and straight XSeries trigger are intended to support consistent hand placement and a repeatable trigger press. Front and rear slide serrations provide practical grasping surfaces for chamber checks and slide manipulation.

This model uses a manual safety in addition to the pistol’s internal safety systems. The safety lever provides an intentional external control for shooters who prefer that feature on a carry pistol. As with any firearm, the safety is a supplement to proper handling rather than a substitute for keeping the muzzle in a safe direction and the trigger finger outside the trigger guard until ready to fire.

Factory ROMEO-X SIG-LOC Optic

The defining feature of this configuration is the factory-mounted ROMEO-X SIG-LOC optic. SIG-LOC is a direct-mount system designed for compatible P365 slides. Its mounting interface uses multiple contact points and positions the optic low on the slide, helping preserve a natural presentation and allowing the installed XRAY3 day/night sights to remain useful as backups.

The compact ROMEO-X SIG-LOC uses a sealed 7075-aluminum housing designed to protect the emitter from debris and the elements. A side-loading CR1632 battery allows battery replacement without removing the optic from the slide. Motion Activated Illumination powers the reticle when movement is detected and helps conserve energy when the pistol is stationary. SIG lists a battery runtime of up to 20,000 hours under typical settings and use conditions.

Carry-Ready Configuration

Because the optic, slide interface, and backup sights are assembled as a factory package, this P365X avoids the need to select a separate footprint, mounting plate, or sight-height combination. The 10-round magazines also make this variant suitable for buyers who need or prefer a reduced-capacity configuration. The accessory rail can accept appropriately sized lights or lasers made for the P365 family.

The pistol’s black finish and compact proportions keep the package understated, while the optic provides a bright, target-focused aiming option for training, home-defense planning, or lawful concealed carry. Prospective owners should confirm local magazine-capacity, firearm-transfer, and carry requirements before purchase. Firearms should be stored unloaded and secured against unauthorized access when not in use.

Setup, Training, and Maintenance

Before relying on the pistol, verify the optic’s mounting hardware and zero according to the SIG SAUER manuals, then confirm point of aim and point of impact with the ammunition intended for use. Train with both the electronic dot and the iron sights so a depleted battery or obstructed window does not interrupt safe operation. Inspect the optic lens, battery compartment, slide, magazines, and controls during routine maintenance. Use only manufacturer-recommended cleaning methods and lubricants, and do not allow excess oil to collect around the optic or firing mechanism. A secure, compatible holster should protect the trigger guard and accommodate the mounted optic without pressing its controls.

Specifications

• Manufacturer: SIG SAUER
• Model: P365X ROMEO-X SIG-LOC
• Caliber: 9mm Luger
• Barrel length: 3.1 inches
• Capacity: 10+1
• Action: Striker-fired semi-automatic
• Safety: Manual
• Sights: ROMEO-X SIG-LOC optic with XRAY3 day/night backup sights
• Finish: Black Nitron
• Included magazines: Two 10-round magazines
• Manufacturer part number: 365X9BXR3RXSL10
• UPC: 798681720286