Home / Pistols / SIG Sauer P320 XCompact / Trijicon RMRcc

Does the Trijicon RMRcc fit the SIG Sauer P320 XCompact?

No: the slide is not cut for the Trijicon RMRcc footprint, and no plate listed here bridges it.

No known fit

Nothing in this database bridges the SIG P320 optic cut (Romeo1Pro pattern) interface to the Trijicon RMRcc pattern. Looks like a small RMR and is not one. Needs its own cut or plate; will not sit on an RMR or RMSc pattern. A custom plate or a re-mill would be the only route — check with a plate maker before assuming it can't be done.

SlideSIG P320 optic cut (Romeo1Pro pattern)

Optic footprintTrijicon RMRcc

Slide is cut forSIG Romeo1Pro, Holosun SCS (320)

Plates made for itTrijicon RMR, Trijicon RCR, Leupold DeltaPoint Pro, Aimpoint ACRO, Holosun K, Holosun 509T, Shield RMSc

How this slide mounts an opticOptic-ready P320 slides are milled for SIG's own Romeo1Pro pattern. Everything else goes on through an adapter, and there is a deep plate market because of it.

What fits the SIG Sauer P320 XCompact instead

57 of the 75 optics tracked here mount to it. The cheapest ways in:

Cheapest overall$85–210Cyelee Cat / Wolfplate: P320 → RMR / SRO / RCR / Holosun CBuild sheet →

Cheapest with no plate$300–450Holosun SCS 320direct — no adapterBuild sheet →

Cheapest enclosed emitter$175–360Viridian RFX45plate: P320 → ACRO / Steiner MPSBuild sheet →

And the optics asked about most that do fit it:

All 57 optics that fit it →

Where the Trijicon RMRcc does go

It mounts to 15 of the 178 pistols tracked here. The ones asked about most:

All 15 pistols it fits →

Something on this page wrong? Say what it should be. Corrections from someone who owns the pistol are why this is worth more than a spec sheet — and nothing here changes without a source, so bring one.