C&H Precision
C&H Precision EDC
$199.99EPS / KShield RMSc
Compact open-emitter carry optic on the RMSc footprint with red, green, and MRS variants
Springfield Hellcat optic footprint: what red dots fit
The Springfield Hellcat OSP slide is cut for one footprint, the Shield RMSc pattern, and it takes that optic directly with nothing in between. Springfield mills the pocket, the recoil lugs, and the screw holes into the slide itself, so an RMSc-pattern micro dot seats on bare slide steel at the lowest height this pistol can give you. Springfield names the Shield RMSc among the micro red dots the OSP slide accepts, and that pattern has since become the default interface for the whole micro-compact class, from tiny open-emitter dots to enclosed carry optics. Holosun's K-pattern optics are the exception worth understanding before you buy, because the lug counts do not line up.
OSP is the entire decision on a Hellcat. Springfield still lists a 3-inch Hellcat with a fiber optic front sight and a billet-machined slide, SKU HC9319BFO, and that slide has no pocket, no lugs, and no screw holes. Nothing bolts to it short of a milling service or a replacement slide. Every OSP and RDP model carries the cut. Look at the top of the slide behind the rear sight: a recessed pocket means OSP, unbroken slide steel means the fiber optic model.
- Optics that fit
- 20
- No plate needed
- 20
- Plate required
- 0
- Footprints accepted
- Shield RMSc / Holosun K
Disclosure: This page contains affiliate links. We may earn a commission on purchases at no cost to you. Read the affiliate disclosure
Mounts directly (Shield RMSc footprint)(20)
These optics carry the Shield RMSc footprint the slide is cut for. Screws, recoil bosses, and pocket all line up, so they seat on the slide with no plate.
Osight
Osight K (RMSc 6 MOA Green)
$169.99Shield RMSc
Green-dot version of the open-emitter RMSc Osight K, with a 6 MOA green dot, side-loading CR1620, and motion sensor activation.
Osight
Osight K (RMSc 6 MOA Open)
$159.99Shield RMSc
Entry-level open-emitter RMSc red dot with a 6 MOA dot, side-loading CR1620, and motion sensor activation.
Osight
Osight SE Enclosed (2 MOA + 32 MOA Red MRS)
$199.99Shield RMSc
Enclosed-emitter red dot on the RMSc footprint with a switchable 2 MOA dot and 32 MOA circle, side-loading battery, and IPX7 sealing.
Osight
Osight SE Enclosed (6 MOA Green)
$199.99Shield RMSc
Enclosed-emitter green dot on the RMSc footprint with a side-loading battery and a 75,000-hour runtime, at a value price.
Osight
Osight SE Enclosed (6 MOA Red)
$179.99Shield RMSc
Enclosed-emitter 6 MOA red dot on the RMSc footprint with a side-loading battery, motion sensor, and IPX7 sealing for slim carry guns.
C&H Precision
C&H Precision EDC Enclosed
$249.99EPS / KShield RMSc
Enclosed-emitter RMSc-footprint carry optic with a low-profile compact housing
C&H Precision
C&H Precision Max
$339.99EPS / KShield RMSc
Large-window RMSc-footprint multi-reticle optic for compact pistols and shotgun plates
Cyelee Optics
Cyelee CAT EDG
$279.99Shield RMSc
One-ounce enclosed-emitter dot on the slim RMSc cut for carry slides
Gideon Optics
Gideon Optics Judge II
$229.99Shield RMSc
RMSc open-emitter carry dot with a protected 20mm window and side-loading CR1632.
Gideon Optics
Gideon Optics Judge XL
$239.99Holosun KShield RMSc
Large-window 6 MOA dot for RMSc and Holosun K mounting patterns.
Gideon Optics
Gideon Optics Valor Mini
$299.99Shield RMSc
Enclosed 3 MOA RMSc optic with a side-loading battery and 6.25mm deck.
Osight
Osight S Enclosed (Magnetic Charging)
$249.99Shield RMSc
Enclosed-emitter RMSc red dot with a magnetic charging cover, OAL housing, and a 2 MOA + 32 MOA multi-reticle system.
SIG Sauer
SIG Romeo Zero Elite
$129.99Shield RMSc
Sub-half-ounce micro red dot on the Shield RMSc footprint for P365 and similar carry pistols
Swampfox
Swampfox Sentinel II
$249Shield RMSc
Mid-tier RMSc-footprint micro red dot with Shake N' Wake auto-on, recessed hood for lens protection, and a clean 3 MOA dot, $269 (red) or $299 with tritium.
Vector Optics
Vector Optics Frenzy FLEX 24x29 (SCRD-C77)
$229Shield RMSc
Large-window competition pistol dot with selectable 2 and 6 MOA reticles
Vortex
Vortex Defender-CCW Enclosed Solar
$259.49Shield RMSc
Closed emitter micro pistol optic with solar assist on the Shield RMSc footprint
C&H Precision
C&H Precision HNT-R Max
$399.99EPS / KShield RMSc
Camo RMSc-footprint hunting red dot for handguns, shotguns, and scout-style mounts
Shield Sights
Shield RMSc 4 MOA (Glass Edition)
$379.99Shield RMSc
The original RMSc that defined the slim-pistol footprint standard. UK-made glass-edition reflex sight with a 4 MOA dot, $379, the platonic Shield-cut optic.
SIG Sauer
SIG ROMEO-X Compact Enclosed
$499.99Shield RMSc
SIG's enclosed-emitter pistol red dot on the RMSc footprint, with MOTAC motion activation and a side-loading CR1632.
Springfield Hellcat optic fitment FAQ
What optic footprint does the Springfield Hellcat use?
The Springfield Hellcat OSP slide is cut for one footprint, the Shield RMSc pattern, and it takes that optic directly with nothing in between. Springfield mills the pocket, the recoil lugs, and the screw holes into the slide itself, so an RMSc-pattern micro dot seats on bare slide steel at the lowest height this pistol can give you. Springfield names the Shield RMSc among the micro red dots the OSP slide accepts, and that pattern has since become the default interface for the whole micro-compact class, from tiny open-emitter dots to enclosed carry optics. Holosun's K-pattern optics are the exception worth understanding before you buy, because the lug counts do not line up.
Do I need an adapter plate to mount a red dot on the Springfield Hellcat?
No. The Springfield Hellcat slide is cut for the Shield RMSc footprint and Shield RMSc optics bolt straight to the slide.
Does the SIG Romeo Zero Elite fit a Springfield Hellcat?
Yes. The SIG Romeo Zero Elite uses the Shield RMSc footprint that the Springfield Hellcat slide is cut for, so it bolts straight to the slide with no adapter plate.
Does a Holosun 507K or 407K mount on the Hellcat OSP cut?
Not as a drop-in. The Hellcat OSP cut is the Shield RMSc pattern, which stands four recoil lugs up in the pocket, and a Holosun K-pattern optic has only two lug pockets in its base. Two slide lugs are left with nowhere to seat. The two real fixes are the adapter hardware Holosun ships with its K-series optics, or filing the extra lugs off the slide, which is a permanent change to the slide. An RMSc-pattern optic in the other direction is a clean drop-in.
Do the Hellcat and the Hellcat Pro use the same optic cut?
Yes. The Hellcat Pro is the longer-grip, longer-slide version of the same pistol and its slide carries the same OSP cut, not a Pro-specific one. The 3.8-inch RDP uses that cut too. Mounting hardware sold for the Hellcat OSP fits all three.
Keep reading
Optic footprints for other Springfield Armory models
- Springfield Hellcat Pro optic footprint
- Springfield Echelon optic footprint
- Springfield Prodigy optic footprint