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What red dots fit the Springfield Armory Echelon Compact 4.5C?

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

57 of the 77 optics tracked here mount to this slide, and 49 of those need no adapter plate. This slide uses Springfield Echelon VIS.

No plate neededPlate neededDoesn’t fit

Mount systemSpringfield Echelon VIS
Optics that fit57 of 77
No plate needed49
Plate to buy8
Plate to slide18 in-lb maximum

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$175–360Viridian RFX45plate: VIS → ACRO / MPS adapterBuild sheet
Same slide cutThe Springfield Armory Echelon and Springfield Armory Echelon 4.0C share this slide's optic cut (Springfield Echelon VIS), so the optics, plates and screws below are the same for all of them. What differs between the models is under "On this model", where there is anything.
How this slide mounts an opticInstead of plates, self-locking pins drop into the slide to recreate a footprint's lugs. Springfield's VIS chart gives pin set 1 to RMR-pattern optics (and the Holosun 507K and EPS), set 2 to DeltaPoint Pro and set 3 to Shield, with its own screw kit for the RMR family and DeltaPoint Pro. The optic bolts straight to the slide, so nothing stacks. ACRO and Docter optics need one of Springfield's adapter plates.

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) — 31
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 407K X2Build sheetHolosun Kdirect — no adapter$150–300
Holosun 507K X2Build sheetHolosun Kdirect — no adapter$300–450
Holosun 507K X3 / 407K X3Build sheetHolosun Kdirect — no adapter$300–450
Holosun EPS EnclosedBuild sheetHolosun Kdirect — no adapter$300–450
Holosun EPS Carry EnclosedBuild sheetHolosun Kdirect — no adapter$300–450
Holosun EPS-CORE EnclosedBuild sheetShield RMScdirect — no adapter$300–450
Holosun SCS Carry EnclosedBuild sheetHolosun Kdirect — 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 KBuild sheetHolosun Kdirect — no adapter$60–150
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 ROMEO2 EnclosedBuild sheetSIG Romeo2direct — no adapter$450–650
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 — 8
Aimpoint ACRO C-2 EnclosedBuild sheetAimpoint ACROplate: VIS → ACRO / MPS adapter$475–710
Aimpoint ACRO P-1 EnclosedBuild sheetAimpoint ACROplate: VIS → ACRO / MPS adapter$475–710
Aimpoint ACRO P-2 EnclosedBuild sheetAimpoint ACROplate: VIS → ACRO / MPS adapter$675–960
Burris FastFire 4Build sheetDocter / Noblexplate: VIS → Docter adapter$175–360
Springfield Armory Hex DragonflyBuild sheetDocter / Noblexplate: VIS → Docter adapter$175–360
Steiner MPS EnclosedBuild sheetAimpoint ACROplate: VIS → ACRO / MPS adapter$475–710
Viridian RFX45 EnclosedBuild sheetAimpoint ACROplate: VIS → ACRO / MPS adapter$175–360
Vortex ViperBuild sheetDocter / Noblexplate: VIS → Docter adapter$175–360
No fit — 20
ADE NUWAcc ProTrijicon RMRccno known route—
Aimpoint COA EnclosedAimpoint COA / A-Cutno known route—
Aimpoint Micro T-2 EnclosedAimpoint Microno known route—
Burris FastFire 3Docter / 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 SCS 320 EnclosedHolosun SCS (320)no 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—
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—
Sightmark Mini Shot A-SpecDocter / Noblexno known route—
Trijicon RMRccTrijicon RMRccno known route—
Vortex VenomDocter / Noblexno known route—

Adapter plates for the Springfield Armory Echelon Compact 4.5C

PlateGives youSourcePrice
VIS → ACRO / MPS adapterSpringfield's listing names the Aimpoint ACRO, Steiner MPS and Viridian RFX45; no screw kit is needed. Steel, nitride finish.Aimpoint ACROSpringfield factory ↗$25–60
VIS → Docter adapterSpringfield's listing names the Burris FastFire 2 and 4, Vortex Viper, HEX Dragonfly, Crimson Trace CT RAD, Viridian RFX25, Vector Frenzy-X and Advanced Optics RD3-009. Steel, nitride finish.Docter / NoblexSpringfield factory ↗$25–60

Iron sights that co-witness

Typical co-witness by optic type; figures published for this slide are below, with their source.

Sight heights published for 2 optics on this slide
Trijicon RMR Type 2
  • Springfield Armory · co-witness · front .250 / rear .270 in
Leupold DeltaPoint Pro
  • Springfield Armory · co-witness · front .360 / rear .380 in

Heights are front / rear in inches, as each sight maker measures its own sights. That's not a deck height, and it doesn't compare across makers to the thousandth. Absolute puts the front sight level with the dot; lower 1/3 and lower 1/5 sit it lower in the window. A sight maker sells a handful of fixed heights, so optics of similar height share one set: the same figures under two optics are the maker's chart saying so, not a copy.

Springfield Armory — Echelon U-Dot sight set, sold in optic-specific heights ↗

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.