Sig Sauer P320 X-Compact 9mm Luger 3.6" Slide Assembly w/ ROMEO-X PRO Optic - Coyote Brown

The Sig Sauer P320 X-Compact slide assembly ships from the factory with a pre-installed ROMEO-X PRO reflex sight, giving P320 owners a turnkey path to a low-profile, optics-ready pistol. Machined from stainless steel and finished in Coyote Brown, this factory replacement slide drops onto a Compact-size grip module and is built around a 3.6" 9mm Luger barrel (barrel sold separately).

Fitment covers both X-SERIES and non-X-SERIES Compact grip modules, making this slide a straightforward upgrade for a standard P320 Compact or an X-Carry pistol. The slide is rated for use with 9mm, .357 SIG, and .40 S&W fire control units, so the same slide can host multiple calibers by swapping FCUs. The integrated ROMEO-X PRO sits in a CNC-machined 7075 aluminum housing with a distortion-free aspherical lens, a patent-pending beryllium copper flexure arm, and an open-emitter design built to shrug off the recoil of duty and competition use.

The factory optic delivers a 2 MOA dot / 32 MOA Circle reticle on a side-loading CR1632 battery rated for approximately 20,000 hours of runtime - cells swap without removing the optic from the slide. At roughly 10.9 oz (310 g) for the slide assembly, this is a manageable carry and duty top end for self-defense, target shooting, everyday carry, competition, or law enforcement use. The package includes the slide assembly with the pre-installed ROMEO-X PRO optic; the 3.6" barrel and grip module are not included.