8 Best Glock 43x Mos Red Dot Sights of 2026 For Concealed Carry

1

Mini Solar Enclosed Red Dot Sight, 3MOA Reflex Optic, RMSc-Style

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• ARS Mark

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  8.4
• Brand
  AWETHE

Key specs2

Housing Enclosure

Fully enclosed emitter

Optic Footprint

Uses an RMSc-style mounting pattern tailored to slim slides like the Glock 43X MOS, eliminating wide slide overhang.

Pros & cons42

Pros

• Enclosed emitter protects internal optical components against lint and dirt in concealed carry holsters
• RMSc-style footprint designed to mount directly onto slimline slides like the Glock 43X MOS
• Includes 7 daylight and 3 night vision brightness settings for flexible illumination
• Shake Awake and auto shut-off preserve power while keeping the 3 MOA dot ready for immediate draw

Cons

• Fixed 3 MOA dot lacks an optional outer circle for faster close-range acquisition
• Enclosed housing profile adds slightly more upper bulk than an open micro reflex sight

2

C+H EDC Micro Red Dot Sight for Glock 43X Red

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  8.7
• Brand
  C+H

Key specs2

Mounting Interface

Direct mount for Glock 43X/48 MOS

Co-Witness Capability

Designed for a direct slide interface on the Glock 43X MOS, maintaining a lower deck profile that helps align with standard sights.

Pros & cons42

Pros

• Direct mount design attaches directly to the Glock 43X and 48 MOS slide without an adapter plate
• Ultra-low deck height preserves iron sight co-witness without requiring suppressor-height sights
• Shake Awake motion activation turns on instantly upon drawing from a holster
• Compact 3 MOA red dot provides a crisp aiming point sized for slim everyday carry pistols

Cons

• Single 3 MOA dot with no multi-reticle ring option available
• Listing omits battery tray position, requiring buyers to verify if the optic must be removed to swap batteries

3

ARORY RMU1 Micro Red Dot Sight for RMSc Footprint Pistols，Multi-Reticle

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  8.5
• Brand
  ARORY

Key specs2

Battery Tray Access

Side-loading tray

Reticle Options

• 2 MOA center dot
• 32 MOA outer ring
• Combined circle-dot reticle

Pros & cons42

Pros

• Side-loading battery tray allows fast cell changes without removing the sight or losing zero
• Multi-reticle system lets users choose between a 2 MOA dot, a 32 MOA circle, or both
• Includes an MOS-to-RMSc adapter plate for straightforward mounting on Glock MOS slides
• Features 12 distinct brightness settings paired with Shake Awake motion technology

Cons

• Using the included adapter plate raises optic height slightly compared to direct slide cuts
• Open reflex emitter remains exposed to holster dust, moisture, and pocket debris

4

CVLIFE BearMight M05 Solar Red Dot for MOS,Multi-Reticle 2 MOA

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  7.5
• Brand
  CVLIFE

Key specs2

43X MOS Compatibility

Not compatible with Glock 43X MOS

Slide Fitment Warning

Engineered specifically for full-size Glock MOS pistols. It will not mount to the narrower Glock 43X MOS or 48 MOS slide cut.

Pros & cons33

Pros

• Multi-reticle system provides a 2 MOA dot and 32 MOA circle for versatile target acquisition
• Integrated solar panel provides redundant power backup in ambient lighting conditions
• Designed to mate directly with standard full-size Glock MOS slide cut patterns

Cons

• Explicitly incompatible with Glock 43X MOS and Glock 48 MOS slimline slides
• Full-size MOS housing creates severe lateral overhang on narrow concealed carry frames
• Cannot direct-mount to slimline RMSc footprints without custom milling or third-party conversion plates

5

OSIGHT SE Enclosed Micro Red Dot Sight - RMSc/K Footprint

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  7.7
• Brand
  Osight

Key specs2

Optical Design

Enclosed micro reflex

Footprint Standard

RMSc and K footprint compatible

Pros & cons42

Pros

• Enclosed housing prevents rain, snow, and concealed carry lint from obstructing the laser emitter
• Compatible with RMSc and K footprints, matching slimline handgun optics cuts
• Dual reticle system allows quick switching between a 2 MOA dot and a 32 MOA circle
• Durable compact reflex construction maintains a slim profile suited for everyday carry

Cons

• Enclosed micro chassis carries slightly more physical footprint than open-window designs
• Product data does not state battery access location, requiring buyer verification for zero retention

6

CVLIFE WolfCloak Motion Awake Red Dot Sight for RMR Footprint,

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• ARS Mark

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  8.0
• Brand
  CVLIFE

Key specs2

Footprint Standard

Standard RMR footprint

Shock Resistance

1500G shockproof rating

Pros & cons43

Pros

• Ultra-low 0.33-inch profile helps maintain natural line-of-sight alignment
• Robust 1500G shockproof construction handles rigorous handgun recoil forces
• Motion awake technology activates the crisp 2 MOA aiming dot the moment movement is detected
• Comes bundled with mounting adapters for standard full-size Glock MOS and 21mm Picatinny rails

Cons

• Uses an RMR footprint that requires a conversion plate or milling to attach to a Glock 43X MOS
• Wide full-size pistol housing overhangs the narrow 0.87-inch slide of a Glock 43X
• Single 2 MOA reticle provides no outer circle option for fast close-range dot pickup

7

XS SIGHTS 3-Dot Tritium Night Sights, Fits Glock Gen 1

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  7.2
• Brand
  XS Sight Systems

Key specs2

Sight Category

Tritium night iron sights

Electronic Independence

Requires zero batteries and utilizes tritium with photoluminescent front dot illumination, functioning as backup or standalone sights.

Pros & cons42

Pros

• Direct dovetail fit designed specifically for Glock 42, 43, 43X, and 48 MOS pistols
• Tritium and photoluminescent orange glow dot provides 24/7 visibility without batteries or electronics
• Low profile sits completely flush with the slide, avoiding holster snagging and bulk
• Zero electronic components ensures complete immunity to dead batteries, water intrusion, or emitter dirt

Cons

• Traditional iron sight setup with no red dot projection or illuminated glass window
• Lacks the rapid single-plane target focus offered by reflex micro red dots

8

HOLOSUN HS407C X2 Red 2 MOA Dot Open Reflex Sight

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  8.1
• Brand
  HOLOSUN

Key specs2

Power Redundancy

Shake Awake and Solar Failsafe

Slide Fit Considerations

Built for full-size handgun cuts. Installing this on a slimline Glock 43X MOS requires an adapter plate, resulting in slide overhang.

Pros & cons43

Pros

• Solar Failsafe backup keeps the 2 MOA reticle illuminated even if the main battery fails
• Shake Awake technology activates illumination instantly when motion is detected
• Parallax-free optical glass housed in rugged, durable aluminum construction
• Proven full-size pistol platform optic built for high recoil tolerance

Cons

• Sized for full-size handguns and requires an aftermarket adapter plate to fit a Glock 43X MOS
• Broader housing width extends beyond the edges of the slimline Glock 43X slide
• Fixed 2 MOA dot lacks the multi-reticle circle option found on higher-tier models

Last update on 2026-10-04 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Can you mount a red dot directly to a Glock 43X MOS slide without an adapter plate?

Yes, specific micro red dot optics mount directly to the Glock 43X MOS slide without requiring an extra plate. The C+H EDC Micro Red Dot Sight is built for direct mounting on Glock 43X and 48 MOS pistols with its 3 MOA reticle. Other optics, such as the ARORY RMU1 micro sight with a 2 MOA dot and 32 MOA circle, include a dedicated MOS-to-RMSc adapter plate in the box. Always verify whether the optic uses a native slimline direct-mount pattern or supplies a conversion plate before installation.

Will a full-size Glock MOS red dot sight fit on a Glock 43X MOS slide?

No, optics manufactured for standard full-size Glock MOS slides will not fit the slimline Glock 43X MOS slide. Sights such as the CVLIFE BearMight M05 are specifically labeled for full-size handguns and are not compatible with the Glock 43X MOS. Standard full-size optics and standard RMR-pattern sights are wider than the subcompact slide, causing excessive overhang and screw misalignment. Always look for optics explicitly designated for RMSc, K-footprint, or slimline Glock MOS cuts.

Can you change the optic battery without losing your zero?

Yes, optics with top-loading or side-loading battery trays let you replace the power cell while keeping the sight bolted to the slide. The ARORY RMU1 features a side-loading battery compartment alongside 12 brightness settings, ensuring your hardware remains torqued down during maintenance. Models like the Mini Solar Enclosed optic also integrate shake-awake activation and auto shut-off to reduce overall battery drain. Choosing an external battery tray prevents the hassle of removing the optic and sighting in again.

Can you co-witness iron sights through a Glock 43X MOS red dot?

It depends on the optic deck height and whether your setup uses an adapter plate. Direct-mount optics sit lower in the slide cutout, which leaves more room to align backup sights through the window. When an optic sits higher or uses an adapter plate, installing taller iron sights like the XS SIGHTS 3-Dot Tritium night sights with an orange front glow dot helps maintain backup visibility. Verify your optic housing height against your front and rear posts to maintain clear sight alignment across both systems.

Are enclosed emitter red dot sights available for the Glock 43X MOS?

Yes, multiple enclosed micro red dot designs match the Glock 43X MOS mounting footprint. The OSIGHT SE enclosed micro red dot sight is compatible with RMSc and K footprints, providing a dual-reticle system with a 2 MOA dot and 32 MOA circle. Another option is the Mini Solar Enclosed red dot sight, constructed from 6063 aluminum to fit RMSc-style slides with a 3 MOA dot, shake-awake capability, and 7 daylight plus 3 night vision settings. Enclosed housings shield the emitter from lint and rain during daily carry.

What reticle options are available on micro optics for the Glock 43X MOS?

Micro optics for this slide pattern generally feature either a single red dot or a multi-reticle layout. Models like the C+H EDC Micro and the Mini Solar Enclosed sight feature a dedicated 3 MOA dot for a clean, precise aiming point. If you want a larger ring for close-range speed, optics such as the ARORY RMU1 and OSIGHT SE offer a dual-reticle option with a 2 MOA dot inside a 32 MOA outer circle.