The Sig Sauer P365 Spectre X-Series 9mm slide assembly brings factory-engineered recoil reduction and optic compatibility to your micro-compact platform. Built as a complete replacement slide with integrated compensator, this assembly ships ready to pair with a 3.1" non-ported barrel and P365XL recoil spring to deliver a working pistol that tames muzzle flip without sacrificing holster fit or adding bulk. It's the answer for shooters who want softer recoil and faster follow-up shots from a gun that still carries like a P365XL.
The integrated compensator is engineered into the slide itself—no removable comp to lose, clean separately, or worry about in a defensive scenario. Field-stripping and maintenance remain straightforward compared to threaded-barrel setups. The compensator design lets you keep using standard P365XL holsters, meaning your carry rig doesn't need an overhaul. Sig rates the setup to reduce felt recoil by up to 30%, which matters when you're running drills or training extended sessions.
Optic-ready from the factory, the slide features a removable sight plate on top that accommodates the Sig Romeo Zero and Romeo Zero Elite, plus other compact footprints like the Shield RMS-c and Holosun 507K. Up front and rear, you get X-Ray 3 suppressor-height sights—low-light capable day/night tritium dots—so you're never blind if the optic fails or you need a fast sight picture without fumbling an external mount. The slide itself is stainless steel with Nitron finish, a loaded-chamber indicator, and comes in black or Coyote.
Important: this slide pairs only with a 3.1" non-ported barrel and P365XL recoil spring assembly (sold separately). It will not work with ported barrels or .380 Auto components. This is a complete slide assembly with all internal parts included; you're just adding a barrel, recoil spring, and lower receiver to have a running gun.
| Brand | Sig Sauer |
| Product | P365 Spectre X-Series Slide Assembly |
| Caliber | 9mm Luger |
| Barrel Length | 3.1" (requires non-ported barrel, sold separately) |
| Slide Material | Stainless Steel |
| Slide Finish | Nitron |
| Sights | X-Ray 3 Day/Night Suppressor Height |
| Integrated Compensator | Yes |
| Optic Ready | Yes |
| Optic Footprint | Compact (Shield RMS-c, Romeo Zero, Romeo Zero Elite, 507K compatible) |
| Loaded Chamber Indicator | Yes |
| Colors Available | Black, Coyote |
This slide assembly requires a 3.1" non-ported barrel and a P365XL recoil spring assembly to function as a complete firearm. Barrels and recoil spring assemblies are sold separately. Do not use ported barrels or .380 Auto components with this slide.
The slide features an RX-footprint compact optic cut that accommodates the Sig Romeo Zero, Romeo Zero Elite, Shield RMS-c, and Holosun 507K. It ships with a removable sight plate so you can swap between optic and irons.
Yes. The integrated compensator is designed to fit within the slide profile of a standard P365XL, so holster compatibility is maintained.
The slide assembly comes complete with all internal slide parts and X-Ray 3 Day/Night sights. You will need to source a 3.1" non-ported barrel, P365XL recoil spring assembly, and lower receiver to finish the build.
Sig Sauer
Sig Sauer
Sig Sauer
Sig Sauer
