P320 Compact optic footprint: what red dots fit

C&H direct-mount pistol optic for SIG Sauer optics-ready Pro-Cut pistols including P320, P226, P229, and P220.

RMR-footprint enclosed-emitter carry and duty optic with a larger sight window

Slim RMR-footprint dot with a large 8 MOA reticle and Cyelee's STIG-RS lens treatment

RMR carry optic with 3 MOA dot and 45 MOA circle-dot choices in a shorter housing.

Open-emitter RMR-footprint red dot with a wide window, side-loading CR1632, and a switchable 3 MOA + 32 MOA MRS reticle.

RMR-footprint open-emitter competition optic with a wide window and multi-reticle options

Large-window RMR-footprint competition optic with 2 MOA dot and 38 MOA circle options

Fully enclosed RMR-footprint pistol dot with a gas-filled housing and side-loading CR1620

Large-window RMR competition optic with a 6 MOA red or green dot and 1 MOA adjustments.

Large-window RMR optic with 3 MOA dot and 45 MOA circle-dot reticle options.

Multi-reticle micro red dot with solar failsafe and shake awake

Third-gen multi-reticle pistol dot with photodiode sensor, Solar Failsafe, and RMR footprint

Titanium-housed open-emitter micro red dot on the RMR footprint with a larger window than the 507C.

American-made competition optic with excellent glass clarity

Original Osight reflex sight on the RMR footprint with a single 3 MOA dot, magnetic charging cover, and aluminum housing.

Enclosed-emitter red dot built on the DeltaPoint Pro footprint, with a 0.91 x 0.71 inch window, switchable 2 MOA dot and 32 MOA circle, and a side-loading CR1620 tray.

Open-emitter RMR-footprint red dot with a wide window, OAL housing, and a magnetic charging cover for rechargeable operation.

Enclosed-emitter duty red dot on the RMR footprint with the AMRS five-reticle system and a field-swappable side-loading CR1632 battery.

Duty-rated enclosed-emitter red dot on the RMR footprint with a 2/6+32 MOA multi-reticle system and a magnetic charging cover.

An RMR-footprint open dot with three selectable reticles, a 50,000 hour CR1632, IPX67 sealing, and a Picatinny adapter in the box at $329.99.

Full-size SIG optic for P320 X-series and similar platforms

Budget closed-emitter pistol red dot that ships with both RMR and Glock MOS plates

Titanium RMR-footprint pistol dot with a large aspheric window and selectable reticles

Closed-emitter DPP-footprint pistol red dot with solar assist and a multi-reticle.

All-purpose DPP-footprint pistol red dot with top-load CR2032 and Glock MOS plate.

Large-window pistol red dot on the DeltaPoint Pro footprint with top-load battery

Solar-powered enclosed pistol optic with direct SIG P320 fit and DPP footprint compatibility

Trijicon's enclosed-emitter pistol red dot on the RMR footprint with top-load battery

The original pistol red dot that defined the category

Green-LED 2.5 MOA version of the SRO announced May 2026: same wide circular window, RMR footprint, and top-loading CR2032, in black or coyote brown.