The SIG Sauer P365X is a compact 9mm pistol that combines the proven P365 fire control unit with an optics-ready XSeries slide and a longer grip module. It’s designed for concealed carry where capacity and shootability matter. We added this model to our catalog in early 2024, and it’s become one of our most consistent sellers. Our staff notes, “We keep 20+ in stock at all times because backorders kill us on this one.”
Stand-Out Features
- Optics-Ready Slide: The XSeries slide comes milled from the factory for SIG’s ROMEOZero optic, allowing for a direct mount without an adapter plate.
- Increased Grip Length: The grip module is longer than the standard P365, providing a full three-finger purchase for better control.
- Flat XSeries Trigger: Features a flat-faced trigger with a consistent, smooth pull for improved shooting ergonomics.
- High Capacity: Ships with two 12-round magazines, offering substantial firepower in a compact frame.
- Reliable FCU: Built around the same serialized Fire Control Unit as the standard P365, known for its durability and reliability.
Technical Data
| Caliber | 9mm |
| Barrel Length | 3.1″ |
| Overall Length | 5.8″ |
| Height | 4.8″ |
| Width | 1.1″ |
| Weight (measured) | 7.6 oz |
| Sights | XRAY3 Day/Night Sights |
| Magazine Capacity | 2 x 12-Round |
Your Questions Answered
Does this model have a manual safety?
This specific SKU is the model without a manual safety. The frame does not have the cutout for a safety lever.
Will a standard P365 holster fit the P365X?
Typically, yes. The slide and trigger guard dimensions are identical to the standard P365. The longer grip may protrude slightly from some holsters designed for the shorter P365 grip, but most will accommodate it without issue.
What optics fit the factory cut?
The slide is milled specifically for the SIG Sauer ROMEOZero micro red dot. Other optics, like the Shield RMSc, Holosun 407K/507K, and SIG ROMEO-X Compact, will require an adapter plate for proper mounting.
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