What red dots fit the Springfield Armory Hellcat RDP?
Page last updated . Data compiled September 2026 by Andrew Terrebonne.
29 of the 77 optics tracked here mount to this slide, and 15 of those need no adapter plate. This slide uses Springfield Hellcat OSP cut (Micro footprint).
No plate neededPlate neededDoesn’t fit
Mount systemSpringfield Hellcat OSP cut (Micro footprint)
Optics that fit29 of 77
No plate needed15
Plate to buy14
Plate to slideper optic manual
Slide tappedM4 × 0.7
New to red dots? What footprint, plate, co-witness and the rest mean
Screw thread trapSpringfield's Hellcat manual calls for M4 × 0.7 optic screws, and says a screw must not stand more than 2.4 mm (0.095 in) proud of the bottom of the optic. Source: Springfield Armory, Hellcat manual ↗; Springfield Armory, Hellcat Hardware Mounting Kit (Shield RMSc & JPoint) ↗; SIG Sauer, ROMEOZero-ELITE operator's manual (REV00) ↗.
Cheapest ways to mount it
Same slide cutThe Springfield Armory Hellcat OSP, Springfield Armory Hellcat Pro and Springfield Armory Hellcat Pro Comp OSP share this slide's optic cut
(Springfield Hellcat OSP cut (Micro footprint)), 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 opticMilled for what Springfield calls its Micro footprint, the Shield RMSc pattern: an RMSc-pattern optic, Springfield's own Hex Wasp included, bolts straight on. A Holosun K optic takes a plate: C&H says its plate is what lets a 407K or 507K go on without modifying the slide's recoil posts. Source: Springfield Armory, Hellcat Pro OSP (slide milled for the Springfield Micro footprint) ↗; HEX by Springfield Armory, HEX Wasp (Springfield Micro, Shield RMSc footprint) ↗; C&H Precision, Hellcat to Holosun 407K / 507K ↗.
Every optic, and how it mounts
Adapter plates for the Springfield Armory Hellcat RDP
| Plate | Gives you | Source | Price |
|---|---|---|---|
| Hellcat (RMSc footprint) → Holosun 407K / 507KC&H sells a separate plate for the EPS / EPS Carry / SCS Carry. | Holosun K | C&H Precision ↗ | $25–60 |
| Hellcat (RMSc footprint) → Holosun EPS / EPS Carry / SCS CarryA separate plate from C&H's 407K / 507K one. | Holosun K | C&H Precision ↗ | $25–60 |
| Hellcat (RMSc footprint) → Trijicon RMR / SRO / Holosun 407C / 507C / 508TC&H packs a set of 4-40 optic screws for each optic it lists (Holosun, RMR, SRO / RMR HD, its own), so it fits only those. | Trijicon RMR | C&H Precision ↗ | $25–60 |
Iron sights that co-witness
Typical co-witness by optic type; figures published for this slide are below, with their source.
Factory sights, per Springfield ArmorySpringfield says the red dot this model ships with co-witnesses with its factory U-Dot sights — a claim about that packaged optic, not every optic that fits.
Springfield — Hellcat RDP ↗
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.
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