Pistol optic mounting referenceOptic Mounting Fit checker
Home / Pistols / Ruger RXM Compact

What red dots fit the Ruger RXM Compact?

Page last updated . Data compiled September 2026 by Andrew Terrebonne.

44 of the 77 optics tracked here mount to this slide, and 41 of those need no adapter plate. This slide uses Ruger RXM direct-mount optic cut (RMR, DPP, RMSc).

No plate neededPlate neededDoesn’t fit

Mount systemRuger RXM direct-mount optic cut (RMR, DPP, RMSc)
Optics that fit44 of 77
No plate needed41
Plate to buy3
Plate to slideper plate instructions
Slide tappedTrijicon RMR: #6-32 UNC; Leupold DeltaPoint Pro: M4 × 0.7; Shield RMSc: M4 × 0.7

New to red dots? What footprint, plate, co-witness and the rest mean

Cheapest ways to mount it

Cheapest overall, and with no plate$60–150Cyelee Cat / Wolfdirect — no adapterBuild sheet
Cheapest enclosed emitter$300–450Holosun EPS-COREdirect — no adapterBuild sheet
Same slide cutThe Ruger RXM shares this slide's optic cut (Ruger RXM direct-mount optic cut (RMR, DPP, RMSc)), so the optics, plates and screws below are the same for both. What differs between the models is under "On this model", where there is anything.
How this slide mounts an opticThe slide is machined for direct mounting of optics on three patterns: the Trijicon RMR, the Leupold DeltaPoint Pro and the Shield RMSc. Ruger supplies an envelope of small dowel pins with the pistol, two for an RMR-pattern optic and four for a DeltaPoint Pro or RMSc one, and says to mount an optic only with the pins in. The optic's own screws are used, to the optic maker's torque: 6-32 for the RMR pattern, M4 × 0.7 for the other two. Two screws hold the cover over the cut; Ruger says to put them back at 15 in-lb if the optic comes off. Six distributor-exclusive 4-inch models (catalog numbers 19461 to 19466) are cut for the Aimpoint A-Cut instead, which this system does not describe. Ruger fits co-witness-height sights at the factory. The Holosun K optics are not on Ruger's list and need a plate.
On this modelRuger lists the same RMR, DeltaPoint Pro and RMSc pattern for its 4-inch 15+1 models, except six distributor-exclusive models (catalog 19461 to 19466) cut for the Aimpoint A-Cut: check the catalog number.

Every optic, and how it mounts

ItemFootprintHow it mountsCost to mount
Direct — 18
ADE Delta ProBuild sheetTrijicon RMRdirect — no adapter$60–150
Ameriglo HavenBuild sheetTrijicon RMRdirect — no adapter$150–300
C&H Precision CompBuild sheetTrijicon RMRdirect — no adapter$300–450
Cyelee Cat / WolfBuild sheetTrijicon RMRdirect — no adapter$60–150
Holosun 407C X2Build sheetTrijicon RMRdirect — no adapter$150–300
Holosun 407COMPBuild sheetTrijicon RMRdirect — no adapter$300–450
Holosun 507-PromaxBuild sheetTrijicon RMRdirect — no adapter$300–450
Holosun 507C X2Build sheetTrijicon RMRdirect — no adapter$300–450
Holosun 507C X3 / 407C X3Build sheetTrijicon RMRdirect — no adapter$300–450
Holosun 507COMPBuild sheetTrijicon RMRdirect — no adapter$300–450
Holosun 508T X2Build sheetTrijicon RMRdirect — no adapter$300–450
Meprolight MPO-DFBuild sheetTrijicon RMRdirect — no adapter$300–450
Riton 3 TACTIX PRDBuild sheetTrijicon RMRdirect — no adapter$150–300
Swampfox Justice IIBuild sheetTrijicon RMRdirect — no adapter$150–300
Swampfox Liberty IIBuild sheetTrijicon RMRdirect — no adapter$150–300
Trijicon RMR HDBuild sheetTrijicon RMRdirect — no adapter$650–900
Trijicon RMR Type 2Build sheetTrijicon RMRdirect — no adapter$450–650
Trijicon SROBuild sheetTrijicon RMRdirect — no adapter$450–650
Direct (cross-fit) — 23
Bushnell RXS-100Build sheetLeupold DeltaPoint Prodirect — no adapter$150–300
Crimson Trace CTS-1550Build sheetShield RMScdirect — no adapter$150–300
EOTECH EFLX MiniBuild sheetLeupold DeltaPoint Prodirect — no adapter$300–450
Holosun EPS-CORE EnclosedBuild sheetShield RMScdirect — no adapter$300–450
JP Enterprises JPointBuild sheetShield RMScdirect — no adapter$150–300
Leupold DeltaPoint ProBuild sheetLeupold DeltaPoint Prodirect — no adapter$300–450
Olight Osight SBuild sheetShield RMScdirect — no adapter$60–150
Primary Arms Classic 21 mm MicroBuild sheetShield RMScdirect — no adapter$60–150
Riton 3 TACTIX MPRD 2Build sheetShield RMScdirect — no adapter$150–300
Shield Sights RMS2Build sheetShield RMScdirect — no adapter$150–300
Shield Sights RMScBuild sheetShield RMScdirect — no adapter$150–300
SIG Sauer ROMEO-X CompactBuild sheetShield RMScdirect — no adapter$150–300
SIG Sauer ROMEO-X ProBuild sheetLeupold DeltaPoint Prodirect — no adapter$300–450
SIG Sauer ROMEOZeroBuild sheetShield RMScdirect — no adapter$60–150
SIG Sauer ROMEOZero EliteBuild sheetShield RMScdirect — no adapter$150–300
Springfield Armory Hex WaspBuild sheetShield RMScdirect — no adapter$150–300
Swampfox Sentinel IIBuild sheetShield RMScdirect — no adapter$60–150
Trijicon RCR EnclosedBuild sheetTrijicon RCRdirect — no adapter$650–900
Viridian RFX35Build sheetShield RMScdirect — no adapter$60–150
Vortex Defender-CCWBuild sheetShield RMScdirect — no adapter$150–300
Vortex Defender-SLBuild sheetLeupold DeltaPoint Prodirect — no adapter$150–300
Vortex Defender-STBuild sheetLeupold DeltaPoint Prodirect — no adapter$300–450
Vortex Defender-XLBuild sheetLeupold DeltaPoint Prodirect — no adapter$300–450
Plate to buy — 3
Holosun 407K X2Build sheetHolosun Kplate: RXM → Holosun 407K / 507K$175–360
Holosun 507K X2Build sheetHolosun Kplate: RXM → Holosun 407K / 507K$325–510
Holosun 507K X3 / 407K X3Build sheetHolosun Kplate: RXM → Holosun 407K / 507K$325–510
No fit — 33
ADE NUWAcc ProTrijicon RMRccno known route—
Aimpoint ACRO C-2 EnclosedAimpoint ACROno known route—
Aimpoint ACRO P-1 EnclosedAimpoint ACROno known route—
Aimpoint ACRO P-2 EnclosedAimpoint ACROno known route—
Aimpoint COA EnclosedAimpoint COA / A-Cutno known route—
Aimpoint Micro T-2 EnclosedAimpoint Microno known route—
Burris FastFire 3Docter / Noblexno known route—
Burris FastFire 4Docter / Noblexno known route—
C-More RTS2C-More RTS2 / STS2no known route—
C-More STS2C-More RTS2 / STS2no known route—
Holosun 509T EnclosedHolosun 509Tno known route—
Holosun EPS EnclosedHolosun Kno known route—
Holosun EPS Carry EnclosedHolosun Kno known route—
Holosun SCS 320 EnclosedHolosun SCS (320)no known route—
Holosun SCS Carry EnclosedHolosun Kno known route—
Holosun SCS MOS EnclosedHolosun SCS (MOS)no known route—
Leapers UTG OP3 MicroDocter / Noblexno known route—
Lucid Optics E7 EnclosedAimpoint ACROno known route—
Meopta MeoSight IVDocter / Noblexno known route—
Noblex Sight III / Docter Sight CDocter / Noblexno known route—
Olight Osight KHolosun Kno known route—
SIG Sauer ROMEO-X EnclosedSIG-LOCno known route—
SIG Sauer ROMEO-X SIG-LOC Compact EnclosedSIG-LOCno known route—
SIG Sauer ROMEO-X SIG-LOC Pro EnclosedSIG-LOC PROno known route—
SIG Sauer ROMEO1PROSIG Romeo1Prono known route—
SIG Sauer ROMEO2 EnclosedSIG Romeo2no known route—
Sightmark Mini Shot A-SpecDocter / Noblexno known route—
Springfield Armory Hex DragonflyDocter / Noblexno known route—
Steiner MPS EnclosedAimpoint ACROno known route—
Trijicon RMRccTrijicon RMRccno known route—
Viridian RFX45 EnclosedAimpoint ACROno known route—
Vortex VenomDocter / Noblexno known route—
Vortex ViperDocter / Noblexno known route—

Adapter plates for the Ruger RXM Compact

PlateGives youSourcePrice
RXM → RMRThe RMR pattern also mounts directly on this cut.Trijicon RMRC&H Precision ↗$25–60
RXM → Holosun 407K / 507KHolosun KC&H Precision ↗$25–60
GuidesShield RMSc vs Holosun K: which optic fits which cut · Suppressor-height sights: will your irons co-witness? · Installing a red dot: what the makers say

Check a specific pairing

Open the fit checker with this pistol selected, or click any "how it mounts" cell above for that pairing's verdict and build sheet.

Deciding between a few? Compare 3 popular optics on this slide side by side: window, weight, emitter, cost to mount and co-witness.

Something on this page wrong? Tell us what it should be, and include a source: nothing changes without one.