
Holosun SCS-MOS
Solar-powered open Glock MOS direct-mount optic; no plate required

The Glock 26 Gen5 MOS answers to a plate, not a footprint. Glock mills the MOS pocket into the subcompact slide, the plate bolts into that pocket, and the red dot bolts to the plate. Plate 02 out of the factory set fits Trijicon RMR and Holosun 507C pattern optics and Plate 04 fits the Leupold DeltaPoint Pro, while aftermarket plates cover Aimpoint ACRO, Holosun 509T, Holosun EPS, and Shield RMSc / Holosun K. The pocket is the same one the full-size MOS pistols use, so what you need is a standard Glock MOS plate.
The Glock 26 MOS takes the same MOS plates as its full-size siblings, so the mounting interface is not the variable here. Optic footprint is: the subcompact slide is the shortest in the MOS line, so a large RMR-class body covers proportionally more of it than a micro RMSc or Holosun K dot does. Both families mount, and the choice is about how much slide and sight picture you want to give up. A non-MOS Gen5 Glock 26 has no optic cut at all.
Built for the Glock 26 Gen5 MOS optic pocket. These bolt to the slide with no adapter plate in between, which is the lowest mounting height available on this pistol.

Solar-powered open Glock MOS direct-mount optic; no plate required
Trijicon RMR / Holosun 507C optics mount on the Glock 26 Gen5 MOS through a plate in that footprint. Bolt the plate into the slide first, then the optic to the plate.

RMR-footprint enclosed-emitter carry and duty optic with a larger sight window

Open-emitter RMR-footprint red dot with a wide window, side-loading CR1632, and a switchable 3 MOA + 32 MOA MRS reticle.

RMR-footprint open-emitter competition optic with a wide window and multi-reticle options

Large-window RMR-footprint competition optic with 2 MOA dot and 38 MOA circle options

Multi-reticle micro red dot with solar failsafe and shake awake

Third-gen multi-reticle pistol dot with photodiode sensor, Solar Failsafe, and RMR footprint

Titanium-housed open-emitter micro red dot on the RMR footprint with a larger window than the 507C.

Original Osight reflex sight on the RMR footprint with a single 3 MOA dot, magnetic charging cover, and aluminum housing.

Open-emitter RMR-footprint red dot with a wide window, OAL housing, and a magnetic charging cover for rechargeable operation.

Enclosed-emitter duty red dot on the RMR footprint with the AMRS five-reticle system and a field-swappable side-loading CR1632 battery.

Duty-rated enclosed-emitter red dot on the RMR footprint with a 2/6+32 MOA multi-reticle system and a magnetic charging cover.

Budget closed-emitter pistol red dot that ships with both RMR and Glock MOS plates
Trijicon's enclosed-emitter pistol red dot on the RMR footprint with top-load battery
The original pistol red dot that defined the category
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.
Shield RMSc / Holosun K optics mount on the Glock 26 Gen5 MOS through a plate in that footprint. Bolt the plate into the slide first, then the optic to the plate.

Compact open-emitter carry optic on the RMSc footprint with red, green, and MRS variants

The value Holosun K-series. Single 6 MOA dot, Shake Awake, side-loading CR1632, and the K Series / modified RMSc footprint. ~$100 cheaper than the 507K X2.

Green-dot version of the open-emitter RMSc Osight K, with a 6 MOA green dot, side-loading CR1620, and motion sensor activation.

Entry-level open-emitter RMSc red dot with a 6 MOA dot, side-loading CR1620, and motion sensor activation.

Enclosed-emitter red dot on the RMSc footprint with a switchable 2 MOA dot and 32 MOA circle, side-loading battery, and IPX7 sealing.

Enclosed-emitter green dot on the RMSc footprint with a side-loading battery and a 75,000-hour runtime, at a value price.

Enclosed-emitter 6 MOA red dot on the RMSc footprint with a side-loading battery, motion sensor, and IPX7 sealing for slim carry guns.

Enclosed-emitter RMSc-footprint carry optic with a low-profile compact housing

Large-window RMSc-footprint multi-reticle optic for compact pistols and shotgun plates

Compact multi-reticle optic for slim and subcompact pistols

Enclosed-emitter RMSc red dot with a magnetic charging cover, OAL housing, and a 2 MOA + 32 MOA multi-reticle system.

Sub-half-ounce micro red dot on the Shield RMSc footprint for P365 and similar carry pistols

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.

Closed emitter micro pistol optic with solar assist on the Shield RMSc footprint

Camo RMSc-footprint hunting red dot for handguns, shotguns, and scout-style mounts

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's enclosed-emitter pistol red dot on the RMSc footprint, with MOTAC motion activation and a side-loading CR1632.
Trijicon quality in a compact package for slim carry pistols
Leupold DeltaPoint Pro optics mount on the Glock 26 Gen5 MOS through a plate in that footprint. Bolt the plate into the slide first, then the optic to the plate.

American-made competition optic with excellent glass clarity

Enclosed-emitter red dot built on the DeltaPoint Pro footprint, with a 0.91 x 0.71 inch window, switchable 2 MOA dot and 32 MOA circle, and a side-loading CR1620 tray.

Full-size SIG optic for P320 X-series and similar platforms

Closed-emitter DPP-footprint pistol red dot with solar assist and a multi-reticle.

All-purpose DPP-footprint pistol red dot with top-load CR2032 and Glock MOS plate.

Large-window pistol red dot on the DeltaPoint Pro footprint with top-load battery

Solar-powered enclosed pistol optic with direct SIG P320 fit and DPP footprint compatibility
Aimpoint ACRO optics mount on the Glock 26 Gen5 MOS through a plate in that footprint. Bolt the plate into the slide first, then the optic to the plate.

USA-made closed-emitter duty pistol optic on the ACRO footprint at a sub-$350 price

Closed-emitter ACRO XL-footprint duty optic with the larger double-bar clamp interface

Premium enclosed emitter with 50,000 hour battery life

Steiner closed-emitter pistol optic with 3.3 MOA dot on the ACRO footprint

Second-generation enclosed ACRO-footprint pistol dot running up to 90,000 hours on a CR2032
Holosun 509T optics mount on the Glock 26 Gen5 MOS through a plate in that footprint. Bolt the plate into the slide first, then the optic to the plate.

Enclosed emitter micro red dot for maximum durability

Full-size enclosed emitter pistol dot with AEMS optics in 509T footprint
Holosun EPS optics mount on the Glock 26 Gen5 MOS through a plate in that footprint. Bolt the plate into the slide first, then the optic to the plate.

Enclosed emitter compact optic for slim pistols

Full-size enclosed pistol optic on Holosun K-series footprint with included RMR adapter plate

Solar-charging enclosed micro red dot with multi-reticle system for slim carry pistols
The Glock 26 Gen5 MOS answers to a plate, not a footprint. Glock mills the MOS pocket into the subcompact slide, the plate bolts into that pocket, and the red dot bolts to the plate. Plate 02 out of the factory set fits Trijicon RMR and Holosun 507C pattern optics and Plate 04 fits the Leupold DeltaPoint Pro, while aftermarket plates cover Aimpoint ACRO, Holosun 509T, Holosun EPS, and Shield RMSc / Holosun K. The pocket is the same one the full-size MOS pistols use, so what you need is a standard Glock MOS plate.
Yes, for almost every optic. The Glock 26 Gen5 MOS mounts red dots through a plate system, so you bolt the plate matching your optic's footprint into the slide and then bolt the optic to the plate. The exceptions are optics built for that pocket, such as the Holosun SCS-MOS, which mount with no plate. Plates are available for the Trijicon RMR / Holosun 507C, Shield RMSc / Holosun K, Leupold DeltaPoint Pro, Aimpoint ACRO, Holosun 509T and Holosun EPS footprints.
Yes, on a plate. The Holosun 507C X2 is a Trijicon RMR / Holosun 507C footprint optic, so it mounts on the Glock 26 Gen5 MOS using a matching plate such as the Glock OEM MOS Adapter Plate 02 RMR and C&H Precision Glock MOS to RMR Steel Adapter Plate. Install the plate to the slide first, then the optic to the plate.
Yes, on a plate. The Trijicon RMR Type 2 is a Trijicon RMR / Holosun 507C footprint optic, so it mounts on the Glock 26 Gen5 MOS using a matching plate such as the Glock OEM MOS Adapter Plate 02 RMR and C&H Precision Glock MOS to RMR Steel Adapter Plate. Install the plate to the slide first, then the optic to the plate.
Yes, on a plate. The Holosun 507K X2 is a Shield RMSc / Holosun K footprint optic, so it mounts on the Glock 26 Gen5 MOS using a matching plate such as the C&H Precision Glock MOS RMSc / Holosun K Steel Plate and Calculated Kinetics Glock MOS DOGTAG RMSc / K Plate. Install the plate to the slide first, then the optic to the plate.
Yes, on a plate. The Holosun EPS Carry mounts on the Glock 26 Gen5 MOS using a matching plate such as the C&H Precision Glock MOS RMSc / Holosun K Steel Plate and Calculated Kinetics Glock MOS DOGTAG EPS Plate. Install the plate to the slide first, then the optic to the plate.
Yes. The Gen5 MOS pocket is the same across the MOS line, so a Glock MOS plate that fits a 19 fits the 26. What changes on the subcompact is how much slide the optic body covers, not the mounting interface.