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Home / Pistols / Ruger RXM / Holosun 509T

Does the Holosun 509T fit the Ruger RXM?

No: the slide is not cut for the Holosun 509T footprint, and no plate listed here bridges it.

No known fit

Enclosed emitter

Nothing in this database bridges the Ruger RXM optic cut interface to the Holosun 509T pattern. Its own world. Almost always mounted on a dedicated 509T plate; steel plates are the common recommendation. A custom plate or a re-mill would be the only route — check with a plate maker before assuming it can't be done.

SlideRuger RXM optic cut
Optic footprintHolosun 509T
Slide is cut forno footprint — plates only
Plates made for itShield RMSc, Holosun K, Trijicon RMR, Leupold DeltaPoint Pro, Aimpoint ACRO
How this slide mounts an opticThe RXM uses its own cut with adapter plates rather than the GLOCK MOS pocket, despite the gun's broad GLOCK parts compatibility. Plate coverage is now good across RMR, K/RMSc, DPP and ACRO. The factory iron sights sit high enough that tall optics foul them: Steiner MPS and K-series and low-deck DeltaPoint variants clear, while RMRs and SROs generally do not, and 507C and ACRO fits are marginal. Shops offer a 'MOS+' re-mill that converts it to MOS-compatible plates, at the cost of the factory irons.
About this opticTitanium; duty-oriented. Steel plates recommended.

What fits the Ruger RXM instead

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

Cheapest overall$85–210Cyelee Cat / Wolfplate: RXM → RMRBuild sheet →
Cheapest enclosed emitter$175–360Viridian RFX45plate: RXM → ACRO / MPSBuild sheet →

And the optics asked about most that do fit it:

All 53 optics that fit it →

Where the Holosun 509T does go

It mounts to 48 of the 178 pistols tracked here. The ones asked about most:

All 48 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.