Red dot mounts for Sig

A red dot sight on a Sig pistol gives you a single focal plane that eliminates iron sight alignment from the shot process. Sig's DA/SA pistols — the P226, P229, P220 — have a consistent dovetail geometry well-suited to drop-in mounts. The P320 modular platform and P365 compact both support dedicated optics plates on optics-ready variants, extending the same benefit to striker-fired configurations.

A dovetail red dot mount fits directly into the rear sight dovetail on your pistol — the same cut that holds the factory rear sight. The mount replaces the rear sight and positions the optic directly above the slide in the sighting plane. Installation requires no gunsmithing and no machining: remove the rear sight, seat the mount in the dovetail, and tighten the setscrew. The modification is fully reversible — if you want to return to iron sights, you reinstall the factory rear sight and the slide is unchanged.

The dovetail specification and slide dimensions vary between Sig models and generations — always check the individual product page to confirm the mount fits your specific pistol before ordering.