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
Shadow Systems MR920P Elite optic footprint: what red dots fit
The Shadow Systems MR920P Elite has a dedicated multi-footprint optic cut, not a plate system. Shadow Systems mills one pocket that accepts several red dot patterns directly and locates each one with footprint-matched screws and a polymer compression spacer, so nothing sits between the optic body and the slide. Trijicon RMR pattern dots land on it, along with the Holosun 507C and 508T, and the RMSc-pattern micros including the 407K, the 507K and the enclosed EPS Carry. The screw and spacer pack ships with the pistol, and the small enclosed Holosun optics take their own spacer kit. Because there is no plate in the stack the dot sits low, which is what puts the standard-height factory sights at a lower 1/3 co-witness.
The trap here is generational rather than model-specific. Shadow Systems ran an earlier RMR-style optic cut, the one on the MR918, and it is a different pocket with its own mounting screws and its own cover plate. Neither crosses to the current multi-optic cut, so buy small parts by generation and not just by brand. The second thing to get right is the hardware itself: this cut is screw and spacer specific, so a dot in a supported footprint still needs the screw pair sized for it, and Holosun EPS, EPS Carry and K-series optics use a separate kit from the three pairs that ship in the box.
- Optics that fit
- 42
- No plate needed
- 42
- Plate required
- 0
- Footprints accepted
- Trijicon RMR / Holosun 507CShield RMSc / Holosun K
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Mounts directly (Holosun 507C / RMR / Shield RMSc footprint)(42)
These optics carry the Holosun 507C / RMR / 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.
C&H Precision
C&H Precision EDC-XL
$224.99Holosun 507CRMR
RMR-footprint enclosed-emitter carry and duty optic with a larger sight window
Cyelee Optics
Cyelee Chameleon SRS8
$199.99Holosun 507CRMR
Slim RMR-footprint dot with a large 8 MOA reticle and Cyelee's STIG-RS lens treatment
Gideon Optics
Gideon Optics Rock
$199.99RMR
RMR carry optic with 3 MOA dot and 45 MOA circle-dot choices in a shorter housing.
Osight
Osight C (RMR Footprint, Side-Load Battery)
$179.99RMR
Open-emitter RMR-footprint red dot with a wide window, side-loading CR1632, and a switchable 3 MOA + 32 MOA MRS reticle.
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 COMP
$299.99Holosun 507CRMR
RMR-footprint open-emitter competition optic with a wide window and multi-reticle options
C&H Precision
C&H Precision COMP Max
$339.95Holosun 507CRMR
Large-window RMR-footprint competition optic with 2 MOA dot and 38 MOA circle options
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
Cyelee Optics
Cyelee Wolf EDG
$279.99Holosun 507CRMR
Fully enclosed RMR-footprint pistol dot with a gas-filled housing and side-loading CR1620
Gideon Optics
Gideon Optics Granite Competition RMR
$249.99RMR
Large-window RMR competition optic with a 6 MOA red or green dot and 1 MOA adjustments.
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 Omega
$229.99RMR
Large-window RMR optic with 3 MOA dot and 45 MOA circle-dot reticle options.
Gideon Optics
Gideon Optics Valor Mini
$299.99Shield RMSc
Enclosed 3 MOA RMSc optic with a side-loading battery and 6.25mm deck.
Holosun
Holosun 507C X2
$232.99Holosun 507CRMR
Multi-reticle micro red dot with solar failsafe and shake awake
Holosun
Holosun 507C X3
$299.99Holosun 507CRMR
Third-gen multi-reticle pistol dot with photodiode sensor, Solar Failsafe, and RMR footprint
Holosun
Holosun 508T X2
$369.99RMR
Titanium-housed open-emitter micro red dot on the RMR footprint with a larger window than the 507C.
Osight
Osight 3 MOA Green (RMR, Magnetic Charging)
$229.99RMR
Original Osight reflex sight on the RMR footprint with a single 3 MOA dot, magnetic charging cover, and aluminum housing.
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.
Osight
Osight X (RMR Footprint, Magnetic Charging)
$229.99RMR
Open-emitter RMR-footprint red dot with a wide window, OAL housing, and a magnetic charging cover for rechargeable operation.
Osight
Osight XE AMRS Enclosed (RMR Footprint)
$249.99RMR
Enclosed-emitter duty red dot on the RMR footprint with the AMRS five-reticle system and a field-swappable side-loading CR1632 battery.
Osight
Osight XR Enclosed (RMR Footprint)
$299.99RMR
Duty-rated enclosed-emitter red dot on the RMR footprint with a 2/6+32 MOA multi-reticle system and a magnetic charging cover.
Riton Optics
Riton 3 Tactix PRD 3
$329.99RMR
An RMR-footprint open dot with three selectable reticles, a 50,000 hour CR1632, IPX67 sealing, and a Picatinny adapter in the box at $329.99.
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 Kraken Closed Emitter
$249.99Holosun 507CRMR
Budget closed-emitter pistol red dot that ships with both RMR and Glock MOS plates
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
Vector Optics
Vector Optics Frenzy FLEX Titanium
$211.65RMR
Titanium RMR-footprint pistol dot with a large aspheric window and selectable 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.
Trijicon
Trijicon RCR
$718.99RMR
Trijicon's enclosed-emitter pistol red dot on the RMR footprint with top-load battery
Trijicon
Trijicon RMR Type 2
$588.99RMR
The original pistol red dot that defined the category
Trijicon
Trijicon SRO Green Dot
$639.99RMR
Green-LED 2.5 MOA version of the SRO announced May 2026: same wide circular window, RMR footprint, and top-loading CR2032, in black or coyote brown.
Shadow Systems MR920P Elite optic fitment FAQ
What optic footprint does the Shadow Systems MR920P Elite use?
The Shadow Systems MR920P Elite has a dedicated multi-footprint optic cut, not a plate system. Shadow Systems mills one pocket that accepts several red dot patterns directly and locates each one with footprint-matched screws and a polymer compression spacer, so nothing sits between the optic body and the slide. Trijicon RMR pattern dots land on it, along with the Holosun 507C and 508T, and the RMSc-pattern micros including the 407K, the 507K and the enclosed EPS Carry. The screw and spacer pack ships with the pistol, and the small enclosed Holosun optics take their own spacer kit. Because there is no plate in the stack the dot sits low, which is what puts the standard-height factory sights at a lower 1/3 co-witness.
Do I need an adapter plate to mount a red dot on the Shadow Systems MR920P Elite?
No. The Shadow Systems MR920P Elite slide is cut for the Holosun 507C / RMR / Shield RMSc footprint and Holosun 507C / RMR / Shield RMSc optics bolt straight to the slide.
Does the Holosun 507C X2 fit a Shadow Systems MR920P Elite?
Yes. The Holosun 507C X2 uses the Holosun 507C / RMR / Shield RMSc footprint that the Shadow Systems MR920P Elite slide is cut for, so it bolts straight to the slide with no adapter plate.
Does the Trijicon RMR Type 2 fit a Shadow Systems MR920P Elite?
Yes. The Trijicon RMR Type 2 uses the Holosun 507C / RMR / Shield RMSc footprint that the Shadow Systems MR920P Elite slide is cut for, so it bolts straight to the slide with no adapter plate.
Does the SIG Romeo Zero Elite fit a Shadow Systems MR920P Elite?
Yes. The SIG Romeo Zero Elite uses the Holosun 507C / RMR / Shield RMSc footprint that the Shadow Systems MR920P Elite slide is cut for, so it bolts straight to the slide with no adapter plate.
Do I need an adapter plate for a red dot on the MR920P Elite?
Not for a dot in a pattern the cut is built around. The optic bolts to the slide with the matching screw pair and a compression spacer that keys into the pocket, which is the whole point of the design: longer screw engagement, no plate stack, and a lower mounting height than a plate system can reach.
Which hardware does a Holosun EPS Carry use on the MR920P?
Not the screws in the standard pack. Shadow Systems sells a separate EPS/K spacer kit with its own pair of mounting screws for the Holosun EPS, EPS Carry and K-series optics, and the same kit works for other dots on the RMSc footprint. The spacer is a saddle-style part that tensions against the optic body rather than a mounting plate.