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Sig Sauer P365X 9mm 3.1" Barrel 12 Round ROMEO-RS Compact Sight
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$709.99
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SKU: 365X-9-BXR3P-RS-798681719976
Overview
Built for shooters who want a compact carry pistol with added control and sighting speed, this 9mm model combines a sub-compact footprint with the XSeries grip module and a factory-installed ROMEO-RS Compact optic. The 3.1-inch barrel, polymer frame, and Nitron-finished stainless steel slide keep the package streamlined while the XRAY3 Day/Night Sights provide a backup aiming option in varied light. Its 12-round capacity and included magazines make it a practical choice for everyday concealed carry or range use when a small, optics-ready handgun is the priority.
Why Hunters Choose the Sig Sauer
Compact P365x
Format supports easier concealment for
Xseries Grip
Module adds ergonomic refinement over
Factory-installed Romeo-rs
Compact optic is included for
Xray3 Day/night
Sights provide aiming reference in
12-round Magazines
Two steel magazines supplied
Key Features
- Sig Sauer P365X chambered in 9mm with a striker-fired, semi-automatic action.
- 3.1-inch barrel in a sub-compact profile for concealed carry use.
- XSeries polymer grip module for added ergonomic enhancement.
- Polymer frame with Nitron-finished stainless steel slide.
- Integrated XRAY3 Day/Night Sights for low- and bright-light aiming.
- Factory-installed ROMEO-RS Compact optic with 32 MOA circle and 2 MOA red dot reticle.
- Includes two 12-round steel magazines.
Best Used For
- Concealed carry users wanting a sub-compact 9mm with an included optic and 12-round capacity
- Shooters who prefer the XSeries grip module for a more refined compact-handgun feel
- Low-light users needing XRAY3 Day/Night Sights for faster target acquisition
- Hunters or outdoorsmen seeking a compact sidearm for discreet everyday carry
- Owners who want a factory-equipped optic-ready pistol without aftermarket setup
Specifications
| Action | Striker Fired, Semi-Automatic |
|---|---|
| Barrel Length | 3.1" |
| Caliber | 9mm |
| Color | Black |
| Frame Material | Polymer |
| Grip | XSeries Polymer |
| Included Magazines | Two 12-Round Steel Magazines |
| Magazine Capacity | 12 Rounds |
| Model | P365X |
| Optic | ROMEO-RS Compact |
| Overall Size | Sub-Compact |
| Reticle | 32 MOA Circle with 2 MOA Red Dot |
| Sight Configuration | XRAY3 Day/Night Sights |
| Slide Finish | Nitron |
Pros
- Compact P365X format supports easier concealment for carry use.
- XSeries grip module adds ergonomic refinement over the original P365.
- Factory-installed ROMEO-RS Compact optic is included for faster sighting.
- XRAY3 Day/Night Sights provide aiming reference in varied lighting conditions.
- 12-round magazines are included, with two steel magazines supplied.
- Nitron-finished stainless steel slide and polymer frame are listed in the specs.
Considerations & Trade-offs
- The 12-round magazine capacity and sub-compact size make it easier to carry, but they also mean less ammunition on board than larger-duty pistols.
- The 3.1-inch barrel supports a compact profile, though it leaves less sight radius and barrel length than full-size handguns.
- The factory-installed ROMEO-RS Compact optic adds capability, but it also creates a more specialized setup for users who prefer a simpler iron-sight-only pistol.
- The XSeries grip module and integrated XRAY3 sights add useful features, but the overall package is more feature-rich than a basic concealment pistol.
Suggested Comparisons
- Sub-compact 9mm pistol
- Optics-ready concealed-carry handgun
- Striker-fired semi-automatic pistol
- Pistol with night sights
Suggested Accessories
- Holster
- Extra magazine
- Pistol cleaning kit
- Optic cover
Frequently Asked Questions
What comes included with the P365X package?
The listed package includes the Sig Sauer P365X, two 12-round steel magazines, XRAY3 Day/Night Sights, and a factory-installed ROMEO-RS Compact optic.
What caliber and action does this pistol use?
It is chambered in 9mm and uses a striker-fired, semi-automatic action.
What sighting system is on this model?
The P365X is listed with XRAY3 Day/Night Sights and a ROMEO-RS Compact optic with a 32 MOA circle and 2 MOA red dot reticle.
What are the main frame and slide materials or finishes listed?
The specifications list a polymer frame, an XSeries polymer grip, and a stainless steel slide with a Nitron finish.
Is this a full-size pistol or a compact carry model?
The product is listed as a sub-compact model, with the concealability of the original P365 and the ergonomic enhancements of the XSeries grip module.