Sig Sauer P365X Slide Assembly, Coyote Tan Nitride, Micro-Optics Cut, XRAY3 Day/Night Sights, 9mm 3.1" Barrel

The Sig Sauer P365X slide assembly in Coyote Tan with Nitride finish is a complete, factory-built replacement slide designed for shooters who want a modern micro-optics platform without replacing their entire pistol. Built on stainless steel and finished in durable Coyote PVD, this slide comes fully loaded with internal parts and XRAY3 Day/Night sights, so you're ready to mount glass or run irons straight out of the box. Whether you're upgrading an existing P365 or building a second configuration, this optics-ready slide transforms your pistol into a red-dot-ready platform that fits your existing holsters and handling habits.

The micro-optics cut accommodates compact sight footprints including Sig's own ROMEO ZERO/ROMEO ZERO ELITE, as well as popular third-party options like the RMSc and 507K. The removable sight plate lets you swap between optics or return to iron sights without tools or permanent modification. XRAY3 Day/Night sights come installed, giving you a reliable backup sight system that works in bright sun or low light before you ever add a red dot.

Installation is straightforward: pair this slide with a 3.1" non-ported barrel and a P365X recoil spring assembly, and you'll have a complete, functioning slide unit. The compact design and Coyote Tan finish blend into most carry or duty configurations. This is genuine Sig factory hardware, not an aftermarket clone—built to Sig's tolerances and reliability standard.

Key Features

• Micro-optics cut ready for compact sight footprints (ROMEO ZERO, RMSc, 507K, and others)
• XRAY3 Day/Night sights installed and zeroed
• Fully loaded with internal slide parts—no assembly required
• Durable Coyote PVD Nitride finish over stainless steel
• Fits all standard P365/P365X holsters
• Removable sight plate for optics swaps
• Factory Sig Sauer precision and reliability

Specifications

Frequently Asked Questions

What do I need to complete this slide assembly?

This slide comes fully assembled with sights and internal parts ready to use. You'll need a 3.1" non-ported barrel and a P365X recoil spring assembly to create a complete, functioning slide unit. Barrels and springs are sold separately.

Will this slide work with my existing P365 or P365X holster?

Yes. This slide maintains the compact profile and dimensions of the P365/P365X family and fits in standard holsters designed for those pistols.

Which red dot sights are compatible with the optics cut?

The micro-optics cut accommodates the Sig ROMEO ZERO, ROMEO ZERO ELITE, Shield RMSc, 507K, and other optics that use the compact RX footprint. The removable sight plate makes swapping optics easy.

Are the XRAY3 sights already installed?

Yes. The front and rear XRAY3 Day/Night sights come installed on the slide, ready to use for backup sighting or co-witness with an optic.