The Sig Sauer P365X 9mm pistol with factory-installed ROMEO Zero red dot sight delivers a modern optic platform in a proven carry-class package. This is a complete 3.1" slide assembly built on stainless steel, finished in black nitron, and shipped with integrated XRAY3 day/night iron sights. The low-mounted ROMEO Zero optic co-witnesses with standard-height irons—meaning you get a familiar backup sight picture without needing suppressor-height sights or a cowitnessing riser. If you're upgrading from iron-only P365 carry or building a compact 9mm with modern defensive glass, this slide delivers the work right out of the box.
The ROMEO Zero compact red dot sits on the Shield RMS-c footprint and throws a 2 MOA center dot with a 32 MOA outer circle—bright enough for daylight shooting, small enough for precise work at distance. The included XRAY3 sights glow at night and are visible in bright sun, so you're never caught without a sight picture. All internal slide parts are factory-installed, and the slide is compatible with standard P365/P365X barrels and recoil assemblies (sold separately), making this a smart swap for anyone already running the platform.
This is a slide assembly only—frame and lower parts are not included. Barrel and recoil spring assembly must be sourced separately to complete the pistol. The optic-ready P365X sits at the intersection of concealed carry shootability and defensive optics technology: low profile enough to carry, running glass instead of iron-only aiming.
| Caliber | 9mm Luger |
| Barrel Length | 3.1 inches |
| Slide Material | Stainless Steel |
| Slide Finish | Black Nitron |
| Optic | ROMEO Zero (Shield RMS-c footprint) |
| Reticle | 2 MOA Red Dot / 32 MOA Circle |
| Iron Sights | XRAY3 Day/Night Sights |
| Loaded Chamber Indicator | No |
| Integrated Compensator | No |
This is a slide assembly only. It includes the slide, all internal parts, barrel, optic, and iron sights, but does not include the frame or lower receiver. You'll need a P365/P365X frame to complete the pistol. Barrel and recoil spring assemblies are sold separately.
Yes, this slide is compatible with all P365 and P365X 9mm frames and configurations, provided you have a compatible P365/P365X 3.1" barrel and recoil assembly on hand.
No. The ROMEO Zero sits low enough on the slide that it co-witnesses with the included standard-height XRAY3 iron sights, giving you a clear backup sight picture without suppressor-height iron sights.
You receive the complete slide assembly with the ROMEO Zero optic factory-installed, XRAY3 day/night iron sights, and all internal slide parts. Barrel and recoil spring assembly are not included and must be purchased separately.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
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Sig Sauer
Sig Sauer
