7 Best Red Dots For Glock 45 9mm of 2026 With Secure Mounting

1

Ade RD3-013 Red Dot Reflex Sight for Glock MOS 17

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  9.5
• Brand
  Ade Advanced Optics

Key specs2

Slide Compatibility

Engineered specifically for factory Glock MOS slides, matching the optics-ready slide profile found on standard and compact frames.

Optic Profile

Open reflex sight

Pros & cons32

Pros

• Engineered to fit Glock MOS factory slide cuts for 9mm platforms
• Open reflex optic configuration delivers an unobstructed target view
• Low-profile design mounts cleanly without excessive bulk on the handgun

Cons

• Listing does not specify MOA dot size or illumination battery life
• Cannot mount to standard non-MOS Glock slides without an adapter

2

Ade RD3-009-MOS Red Dot Reflex Sight for Glock MOS 17

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  8.5
• Brand
  Ade Advanced Optics

Key specs1

MOS Integration

Attaches directly to factory Glock MOS slide platforms, eliminating the need to have an uncut slide machined by a gunsmith.

Pros & cons32

Pros

• Configured specifically for Glock MOS factory optic slide configurations
• Compact reflex body maintains balance on standard Glock pistol slides
• Direct MOS attachment avoids high-sitting universal mounting brackets

Cons

• Manufacturer does not publish the exact MOA reticle dimension
• Requires a factory MOS slide cut and cannot fit non-MOS dovetails alone

3

RMR Red Dot Sight, 3 MOA Pistol Scope Adjustable Brightness

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  8.8
• Brand
  Gotical

Key specs2

Reticle Size

3 MOA red dot

Mounting Versatility

• Dedicated Glock mounting bracket
• Standard 20mm Picatinny rail base

Pros & cons32

Pros

• 3 MOA dot reticle balances rapid target acquisition with precise shot placement
• Adjustable brightness settings adapt to indoor ranges and bright daylight
• Supplied with a dedicated Glock mount as well as a 20mm rail bracket

Cons

• Exact runtime and battery specifications are omitted from the listing
• Buyer must verify whether the Glock bracket fits MOS cuts or rear dovetails

4

Zulisy S6-GM 6MOA Direct Mount Red Dot Sight for Full-Size

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  8.1
• Brand
  Zulisy

Key specs2

Direct Slide Fit

Mounts directly to full-size Gen4 and Gen5 Glock MOS slide cuts, bypassing extra mounting plates that can loosen under reciprocating slide recoil.

Dot Dimension

6 MOA dot reticle

Pros & cons32

Pros

• Direct mount configuration fits Gen4 and Gen5 Glock MOS slides without extra plates
• Large 6 MOA dot allows rapid dot tracking during high-speed pistol presentations
• Eliminates adapter plate stack height for a lower optic seating position

Cons

• 6 MOA dot covers more target area at longer shooting distances than smaller reticles
• Incompatible with non-MOS standard Glock slides lacking the factory MOS cut

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 shockproof housing
• Multi-coated scratch-resistant amber lens
• 45mm tubeless reflector window

Pros & cons42

Pros

• Forged aluminum body provides waterproof and shockproof environmental protection
• Multi-coated scratch-resistant amber lens provides anti-reflection scratch defense
• Convenient side controls allow cycling through 6 distinct brightness levels
• Tubeless 45mm reflector offers a broad field of view for quick aiming

Cons

• Listing explicitly states it does not fit standard Glock 17, 19, or Gen 4/5 models
• Listed weight of approximately 0.42 lb adds noticeable mass to a pistol slide

6

EZshoot Full-Sized Red Dot, Motion Awake Optic for Pistols, 2MOA

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  7.4
• Brand
  EZshoot

Key specs3

Power Sensor

Motion awake instant activation

Brightness Range

12 brightness adjustment levels

Included Mounts

• Glock MOS adapter plate
• RMR footprint compatibility
• 21mm Picatinny rail base

Pros & cons42

Pros

• Motion awake sensor powers the dot on instantly when movement is detected
• 12 brightness settings offer wide adjustability for diverse ambient light
• Crisp 2 MOA dot gives a precise point of aim without obscuring distant targets
• Includes adapter plates for Glock MOS and 21mm Picatinny rail bases

Cons

• Smaller 2 MOA dot may require more visual alignment on rapid close-range shots
• Adapter plate mounting increases optic profile compared to direct slide mounts

7

ADE Crusader RD3-009 Red Dot + Rear Sight Optic Mounting

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  7.2
• Brand
  Ade Advanced Optics

Key specs2

Non-MOS Solution

Installs directly into the factory rear sight dovetail channel, giving non-MOS Glock owners an optic mounting pathway without milling the slide.

Platform Pairing

Standard non-MOS Glock pistols and Taurus G3C

Pros & cons32

Pros

• Includes rear sight dovetail adapter plate made specifically for non-MOS Glock models
• Enables red dot mounting on standard slides without costly custom slide machining
• Pre-matched optic and adapter plate bundle ensures straightforward hardware compatibility

Cons

• Rear dovetail plate requires drifting out the factory rear iron sight
• Dovetail adapter plate elevates the optic higher than a factory MOS slide cut

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

Does a red dot direct mount to a Glock 45 MOS slide or require an adapter plate?

It depends on the footprint of the specific optic. Certain red dots, such as the Zulisy S6-GM 6MOA sight, are built for direct mount fitment to full-size Glock MOS Gen4/5 slides without requiring an intermediate plate. Other sights built for an RMR footprint, like the EZshoot open reflex sight, require an adapter plate for MOS slides to bridge the slide cut and the optic body. Always verify whether the sight base matches the Glock factory MOS pattern directly or specifies an included adapter plate.

Can you install a red dot on a standard non-MOS Glock 45 without slide milling?

Yes, you can install an optic on a non-MOS slide by using a rear sight dovetail mounting bracket. Setups like the ADE Crusader RD3-009 include an optic mounting plate designed for standard non-MOS Glock models that replaces the factory rear sight. This adapter slides directly into the existing rear dovetail slot, giving you a secure mounting deck without needing custom machine work on your slide.

What reticle dot size is best for shooting a Glock 45 9mm?

Your choice between smaller and larger reticles depends on your shooting distance and target speed. A 2 MOA or 3 MOA dot covers less of the target area, which helps with deliberate shot placement for medium-range target shooting. A wider 6 MOA reticle offers faster visual pickup during quick presentation, making it practical for rapid target acquisition at closer ranges.

Can you cowitness iron sights through a Glock 45 pistol red dot?

Cowitness capability depends entirely on your mounting style and sight height. If you use a rear dovetail adapter plate to mount your sight, the plate replaces your factory rear sight completely, removing your standard rear sight reference. When using an MOS slide cut or direct mount, adding taller iron sights for cowitness with red dot sights lets your front and rear posts remain visible through the lower section of the optic glass as a dependable backup.

What illumination features help maintain battery life on a slide-mounted reflex sight?

Motion awake sensors and multiple brightness levels prevent unnecessary battery drain while keeping the sight ready for action. Optics like the EZshoot open reflex model include motion awake technology that activates the LED upon movement and powers down during rest, alongside 12 brightness adjustment levels to match lighting conditions. Sights with adjustable brightness allow you to dial down power in dimmer settings rather than running the emitter on maximum output.

How do you prevent a red dot from losing zero under 9mm slide recoil?

Preventing zero shift comes down to proper thread engagement, correct plate fit, and proper screw tension. Glock 9mm slides generate intense reciprocal force with every shot, so inspect your mounting plate to ensure it sits flat against the slide with zero wobble. Confirm the screws match the exact length required for your slide cut, apply the thread-locking compound specified by the manufacturer, and use a torque tool to tighten fasteners to the listed manual specifications.