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

The P320 AXG Pro carries SIG's Pro-Cut slide, a dedicated optic pocket with no adapter plate in the stack. SIG states the optic-ready Pro-cut slide is compatible with the ROMEO1PRO, ROMEO2, and PRO optics for a direct-to-slide fit without adaptor plates, and the PRO pattern shares its screw spacing with the Leupold DeltaPoint Pro, so DeltaPoint Pro class dots seat on the slide too. Pro-Cut slides in this family also carry Trijicon RMR and Holosun 507C threaded holes inside the pocket, which is why RMR-pattern optics bolt down without a plate. Aimpoint ACRO, Holosun 509T, Holosun EPS, and the micro Shield RMSc and Holosun K footprints sit outside what the factory cut accepts.
AXG is a grip module, and that is where owners go wrong. The machined aluminum AXG module can be bought on its own and fitted to any P320 fire control unit, but swapping it changes nothing about the slide, and the slide is what decides what mounts. An AXG grip under a solid slide is still a pistol with no pocket. The AXG Pro earns its optic answer from the Pro-Cut slide SIG ships on it, which also keeps its XRAY3 rear sight in a dovetail when the dot goes on.
These optics carry the DeltaPoint Pro / RMR footprint the slide is cut for. Screws, recoil bosses, and pocket all line up, so they seat on the slide with no plate.

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.
The P320 AXG Pro carries SIG's Pro-Cut slide, a dedicated optic pocket with no adapter plate in the stack. SIG states the optic-ready Pro-cut slide is compatible with the ROMEO1PRO, ROMEO2, and PRO optics for a direct-to-slide fit without adaptor plates, and the PRO pattern shares its screw spacing with the Leupold DeltaPoint Pro, so DeltaPoint Pro class dots seat on the slide too. Pro-Cut slides in this family also carry Trijicon RMR and Holosun 507C threaded holes inside the pocket, which is why RMR-pattern optics bolt down without a plate. Aimpoint ACRO, Holosun 509T, Holosun EPS, and the micro Shield RMSc and Holosun K footprints sit outside what the factory cut accepts.
No. The P320 AXG Pro slide is cut for the DeltaPoint Pro / RMR footprint and DeltaPoint Pro / RMR optics bolt straight to the slide.
Yes. The Holosun 507C X2 uses the DeltaPoint Pro / RMR footprint that the P320 AXG Pro slide is cut for, so it bolts straight to the slide with no adapter plate.
Yes. The Trijicon RMR Type 2 uses the DeltaPoint Pro / RMR footprint that the P320 AXG Pro slide is cut for, so it bolts straight to the slide with no adapter plate.
Yes. The Leupold DeltaPoint Pro uses the DeltaPoint Pro / RMR footprint that the P320 AXG Pro slide is cut for, so it bolts straight to the slide with no adapter plate.
No. The AXG module is a grip that closes around the fire control unit, and optic mounting happens on the slide. An AXG module fitted to a P320 with an uncut slide leaves you with the same pistol and no pocket for a dot. The P320 AXG Pro takes optics because SIG ships it with a Pro-Cut slide, not because the grip module is aluminum.
Pro-Cut is SIG's name for the optic-ready slide treatment on its Pro models, and SIG describes it as compatible with the ROMEO1PRO, ROMEO2, and PRO optics for a direct-to-slide fit with no adaptor plate. Plate and optic makers use the same label across SIG's optics-ready P320, P226, P229, and P220 slides, and C&H Precision builds a red dot with that Pro-Cut footprint machined into the optic body.