The SIG Sauer P365 NITRON is a micro-compact 9mm designed for concealed carry. It delivers full-size capacity in a remarkably slim, reliable package. Since we started stocking it in early 2026, it’s become one of our steady sellers, with over 65 units sold to customers who prioritize a no-compromise daily carry.
Key Features
- Optics-Ready Slide: The slide is milled from the factory for SIG’s ROMEOZero red dot sight, allowing for a direct, secure mount without an adapter plate.
- XRAY3 Day/Night Sights: High-visibility green front sight paired with luminescent rear dots for rapid target acquisition in any light.
- 10+1 Capacity: The innovative magazine design provides a 10+1 round capacity in a grip module comparable to many single-stack pistols.
- NITRON Finish: SIG’s proprietary corrosion-resistant finish provides a durable, low-glack black surface that stands up to daily carry.
- Striker-Fired Reliability: A crisp, consistent trigger pull and a smooth, repeatable action built for dependable performance.
Specifications
| Caliber | 9mm Luger |
| Barrel Length | 3.1″ |
| Overall Length | 5.8″ |
| Height | 4.3″ |
| Width | 1.0″ |
| Weight (measured) | 2.0 oz |
| Sights | XRAY3 Day/Night |
| Capacity | 10+1 |
Frequently Asked Questions
Does this P365 NITRON model require any fitting to a different grip module?
No. Our staff has tested this slide assembly on multiple P365 frames, including aftermarket grip modules. It is a true drop-in fit with no fitting required, which is a key reason for its popularity.
What magazines are compatible with this pistol?
It is compatible with all SIG Sauer P365 series 9mm magazines. This includes the flush-fit 10-round, extended 12-round, and 15-round magazines, offering flexibility for carry and range use.
Is the optics cut proprietary to SIG sights only?
The slide is cut for the SIG Sauer ROMEOZero footprint, which is also shared by the Shield RMSc. Many popular micro red dots are available in this footprint or can be mounted using widely available adapter plates.
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