7 Best Red Dots For Glock 45 Mos of 2026 That Hold Zero Under Recoil

1

Monstrum Dovetail Red Dot Mounting Plate for Glock Pistols |

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• ARS Mark

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  8.8
• Brand
  Monstrum

Key specs2

Slide compatibility

Non-MOS Glock slides only

Footprint standard

Docter footprint

Pros & cons33

Pros

• Converts rear sight dovetails to mount Docter footprint red dots
• Compatible with standard Glock 45 and full-size Glock slide dovetails
• Provides an optic mounting solution without custom slide machining

Cons

• Designed for non-MOS Glock slides and cannot fit the Glock 45 MOS cut
• Replaces the rear iron sight, removing backup iron sight capability
• Sits higher on the slide than direct factory optic cuts

2

GOWUTAR GP-M Red Dot Sight for Glock MOS, 3 MOA

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  9.7
• Brand
  GOWUTAR

Key specs2

Slide mounting interface

Mounts directly to factory Glock MOS slide cuts without requiring an adapter plate or aftermarket hardware.

Motion sensor operation

Features motion awake functionality to preserve power during inactivity and illuminate when movement occurs.

Pros & cons42

Pros

• Direct Glock MOS mounting requires no aftermarket adapter plate
• Motion awake technology preserves battery until movement is detected
• IPX7 waterproof rating and rugged aluminum housing resist moisture
• 3 MOA red dot balances quick target acquisition and aiming precision

Cons

• Direct MOS mounting cut prevents installation on standard Picatinny rails
• Manufacturer does not state total battery life hours or battery type

3

Flip-Up Micro Red Dot Sight with Raised Base — Universal

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  7.8
• Brand
  KAZLIE

Key specs2

Optic mechanism

Utilizes a folding reflex lens mechanism that collapses flat and deploys upright when needed.

Mounting versatility

Compatible with Glock MOS, RMR, and Picatinny rails

Pros & cons33

Pros

• Folding flip-up lens design collapses down when not actively aimed
• Universal mount kit supports Glock MOS, RMR cuts, and Picatinny rails
• Includes a raised base for mounting flexibility across pistols and rifles

Cons

• Folding hinge introduces extra mechanical moving parts under slide recoil
• Raised base increases optic height and prevents iron sight co-witness
• Manufacturer listing omits dot MOA size, battery runtime, and material

4

JORMIX Tactical RMR Red Dot Sight Adjustable 3 MOA 20mm

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  9.2
• Brand
  JORMIX

Key specs2

Reticle dot size

3 MOA red dot

Window dimension

20mm reflex objective

Pros & cons43

Pros

• 3 MOA red dot reticle offers balanced precision for handguns and rifles
• Compact 20mm reflex objective window fits cleanly on handgun slides
• Adjustable windage and elevation allow accurate zeroing
• Includes a mounting base compatible with 20mm Picatinny rail setups

Cons

• Requires an RMR adapter plate to mount onto factory Glock 45 MOS cuts
• Listing leaves battery type, runtime hours, and alloy unstated
• Does not include motion awake sensors or IPX water ratings

5

GOTICAL CNC-Machined Fiber Optic Set Front & Rear Handgun Sights

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  7.6
• Brand
  Gotical

Key specs2

Illumination controls

6 brightness levels via left-side controls

Housing construction

Forged aluminum body with multi-coated scratch-resistant amber glass, built with waterproof and shockproof performance.

Pros & cons43

Pros

• Forged aluminum housing offers shockproof and waterproof construction
• Scratch-resistant amber lens with anti-reflection coatings boosts clarity
• Side-mounted push buttons provide 6 selectable brightness levels
• 45mm reflector tubeless design provides a wide field of view

Cons

• Listing excludes many Glock models, requiring verification for Glock 45
• Weight of 0.42 pounds adds noticeable mass to a reciprocating slide
• Needs an RMR adapter plate to fit onto a Glock 45 factory MOS cut

6

RMR Red Dot Sight 5MOA for G2C Glock Rifle Airsoft

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  7.8
• Brand
  Gotical

Key specs2

Reticle dot size

5 MOA red dot

Mounting interface

Uses an RMR footprint and includes a 1913 base for 20mm Weaver rails, requiring an adapter for Glock MOS slides.

Pros & cons33

Pros

• 5 MOA red dot reticle enables fast close-range dot acquisition
• Standard RMR footprint pattern allows compatibility with RMR slide plates
• Bundled 1913 / 20mm Weaver rail base allows mounting to long guns

Cons

• Needs a Glock MOS RMR adapter plate to install on a Glock 45 MOS slide
• 5 MOA dot covers more target area than smaller 3 MOA dots at distance
• Manufacturer does not specify battery life, water rating, or materials

7

ohhunt RD U5 3 MOA Red Dot Open Reflex Sight

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  7.7
• Brand
  ohhunt

Key specs2

Slide compatibility

Full-size Glock MOS systems including Glock 45

Material specification

7075 machined aluminum

Pros & cons42

Pros

• Direct compatibility with full-size Glock MOS slides including Glock 45
• Machined 7075 aluminum housing withstands slide recoil and impact
• 3 MOA red dot delivers a balanced aiming point for distance and speed
• Open reflex sight design delivers an unobstructed field of view

Cons

• Dedicated Glock MOS fit does not attach to standard Picatinny rails
• Listing leaves motion awake features and battery runtime unstated

Last update on 2026-10-06 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Does a red dot mount directly to the Glock 45 MOS slide without an adapter plate?

It depends on the footprint of the specific optic. Dedicated designs like the GOWUTAR GP-M mount directly to the factory Glock MOS slide cut with no adapter plate needed. Other sights, including reflex sights built for RMR footprints or 20mm Picatinny rail clamps, require an MOS adapter plate to seat properly against the slide. Always verify whether the sight housing lists direct Glock MOS compatibility or specifies an external mounting plate.

Which footprint or mounting plate does the Glock 45 MOS require?

The Glock 45 MOS uses a modular slide interface designed for dedicated direct-mount sights or footprint-specific adapter plates. Sights like the ohhunt RD U5 are built for full-size Glock MOS systems, seating directly into the slide cut. Optic bodies matching an RMR footprint or standard rail require a dedicated MOS adapter plate to match the screw spacing and recoil bosses. Verify the footprint listed on the sight packaging to ensure it matches your slide plate before mounting.

Can you install a rear dovetail mounting plate on a Glock 45 MOS slide?

No, rear dovetail mounting plates are engineered exclusively for non-MOS Glock handguns. Plates such as the Monstrum dovetail red dot mount press directly into standard rear sight slots on non-MOS slides to support Docter footprint optics. Placing a dovetail plate on a factory MOS slide bypasses the low-profile factory optic cut, placing the sight unnecessarily high. MOS owners should mount directly to the factory slide cut or install an MOS-compatible adapter plate.

Will a red dot sight hold zero under 9mm slide recoil on a Glock 45 MOS?

Yes, red dot sights built with rigid aluminum housings and proper screw engagement hold zero under continuous slide cycling. Sights such as the ohhunt RD U5 feature 7075 aluminum construction, while options like the GOWUTAR GP-M use rugged aluminum housings designed to absorb slide impact without shifting. Torquing the mounting screws correctly into clean slide threads prevents movement and protects mounting hardware from shearing under recoil.

Does a mounted red dot co-witness with factory Glock iron sights?

Most standard red dot sights sit too high above the slide deck to align with factory-height Glock iron sights. Direct-mount MOS sights sit lower than plate-mounted optics, but standard sights may still sit below the glass window. If keeping usable backup sights is essential, check iron sights for cowitness with red dot sights to determine the correct sight blade height for your setup.

What reticle size and power features work best for a Glock 45 MOS?

A 3 MOA or 5 MOA red dot provides a balance between rapid target pickup and precise aiming from short-range targets to medium-range targets. Sights like the GOWUTAR GP-M offer a 3 MOA dot paired with motion awake illumination and IPX7 waterproof durability, ensuring the optic powers on instantly when drawn. Sights featuring a 5 MOA dot provide a broader aiming point for rapid sight alignment during fast pistol transitions.