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
Ruger MAX-9 optic footprint: what red dots fit
The Ruger MAX-9 slide is cut for one pattern, which Ruger lists as JPoint and Shield RMSc, so an RMSc-footprint micro dot bolts straight to the slide with no plate in between. The pocket, the lugs, and the screw holes are milled into the slide itself on every optic-ready model, which keeps the dot as low as this pistol can carry one. Ruger's own MAX-9 optics list runs through the Shield RMS, RMSc, and SMS family, the SIG Romeo Zero, the Swampfox Sentinel, and Ruger's ReadyDot, all on that same base. Holosun's K-series dots are the exception, because their bases and the RMSc lug arrangement do not line up.
Two MAX-9 models break the pattern. Ruger's California-approved model 3518 lists its optic pattern as none, because the loaded chamber indicator occupies that space, and Ruger states outright that the model is unable to accept mounted optics. Model 3523 goes the other way and ships with a Ruger ReadyDot factory mounted and co-witnessed, so the pocket is already spoken for. Models 3514 and 3519 are the bare optic-ready guns. Check the model number before you buy a dot for one.
- Optics that fit
- 20
- No plate needed
- 20
- Plate required
- 0
- Footprints accepted
- Shield RMSc / Holosun K
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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.
Ruger MAX-9 optic fitment FAQ
What optic footprint does the Ruger MAX-9 use?
The Ruger MAX-9 slide is cut for one pattern, which Ruger lists as JPoint and Shield RMSc, so an RMSc-footprint micro dot bolts straight to the slide with no plate in between. The pocket, the lugs, and the screw holes are milled into the slide itself on every optic-ready model, which keeps the dot as low as this pistol can carry one. Ruger's own MAX-9 optics list runs through the Shield RMS, RMSc, and SMS family, the SIG Romeo Zero, the Swampfox Sentinel, and Ruger's ReadyDot, all on that same base. Holosun's K-series dots are the exception, because their bases and the RMSc lug arrangement do not line up.
Do I need an adapter plate to mount a red dot on the Ruger MAX-9?
No. The Ruger MAX-9 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 Ruger MAX-9?
Yes. The SIG Romeo Zero Elite uses the Shield RMSc footprint that the Ruger MAX-9 slide is cut for, so it bolts straight to the slide with no adapter plate.
Does a Holosun 507K or 407K mount on a Ruger MAX-9?
Ruger names both on its own MAX-9 optics list, but they are not a bare drop-on. The MAX-9 carries the Shield RMSc pattern, which stands four recoil lugs in the pocket, while a Holosun K-pattern base has only two lug pockets, leaving two lugs unsupported. Use the adapter hardware Holosun ships with its K-series optics. An RMSc-pattern dot such as a Shield RMSc or a SIG Romeo Zero bolts on with nothing underneath it.
Can I mount a red dot on the California MAX-9 with the loaded chamber indicator?
No. Ruger's spec sheet for model 3518, the California-approved MAX-9, lists the optic pattern as none and states that the model is unable to accept mounted optics. If you want a dot on a MAX-9, the optic-ready models are 3514, 3519, and 3523, and the 3523 already has Ruger's ReadyDot on it.