9 Best Red Dot Sights For Glock 34 Gen 5 of 2026 With Rock-Solid Slide Fit

1

AMERIGLO Classic Series - Three-Dot Tritium Design Glock Set -

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  7.4
• Brand
  AmeriGlo

Key specs2

Aiming Reference

Three-dot tritium green illumination

Slide Interface

Presses into standard factory front and rear Glock Gen 5 dovetail cuts without requiring an optic adapter plate or MOS slide cutout.

Pros & cons32

Pros

• Three-dot tritium design delivers continuous low-light visibility without batteries
• Engineered specifically for Glock Gen 5 9mm and .40 caliber slide dovetails
• All-steel iron sight construction eliminates electronic failure points on the slide

Cons

• Traditional notch and post sight picture aligns slower than an illuminated reflex dot
• Sight blade height is not listed, requiring verification if co-witnessing with optics

2

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

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  9.5
• Brand
  Ade Advanced Optics

Key specs2

Slide Interface

Glock factory MOS slide footprint

Optic Housing Profile

Open reflex design gives competitive shooters a clear sight picture for tracking shots across multiple targets on long-slide Glock pistols.

Pros & cons33

Pros

• Configured specifically to fit factory Glock MOS slides including the Glock 34
• Open reflex window allows unrestricted situational awareness during rapid fire
• Red illuminated aiming reticle provides fast point-of-aim visual pickup

Cons

• Requires an MOS-cut slide and cannot install on standard non-MOS slides directly
• Exact reticle MOA diameter is not specified in the manufacturer data
• Battery runtime hours and brightness setting intervals are unstated

3

HOLOSUN HS407C X2 Red 2 MOA Dot Open Reflex Sight

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.1
• Brand
  HOLOSUN

Key specs2

Power Management

Combines an internal battery with an external solar panel and motion-activated sensor to power the reticle reliably.

Housing Construction

Aluminum open reflex body

Pros & cons42

Pros

• Crisp 2 MOA red dot reticle offers precise aiming points without obscuring distant targets
• Solar Failsafe paired with Shake-Awake technology maintains reticle readiness
• Rugged aluminum housing withstands demanding slide cycling on full-sized handguns
• Parallax-free optical engineering keeps dot alignment consistent regardless of eye position

Cons

• Mounting to a Glock 34 Gen 5 MOS slide requires a compatible RMR-pattern adapter plate
• Open emitter lens is vulnerable to rain, dust, and lint accumulation in harsh conditions

4

RMT S2 5 MOA Foldable Red Dot Reflex Sight Set

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  7.8
• Brand
  Gotical

Key specs2

Reticle Dimension

5 MOA red reflex dot

Mechanism Design

Features a spring-assisted folding lens assembly designed to collapse flat, though slide recoil durability on full-power 9mm requires careful monitoring.

Pros & cons43

Pros

• Folding reflex lens folds down compact against the slide when not in active use
• Prominent 5 MOA red dot delivers fast visual acquisition at close target ranges
• Includes both a dedicated Glock mounting base and a standard 20mm Picatinny rail bracket
• Built-in power saving function helps conserve operational battery capacity

Cons

• Folding hinge mechanism introduces mechanical movement that may challenge zero retention under recoil
• Exercise calling feature lacks explicit technical documentation from the manufacturer
• Non-standard folding chassis may interfere with traditional Glock competition holsters

5

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

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  7.2
• Brand
  XS Sight Systems

Key specs2

Day and Night Contrast

The front sight utilizes photoluminescent orange paint for immediate daylight tracking and self-luminous tritium for dark conditions.

Slide Width Verification

Verify slide width compatibility before ordering

Pros & cons33

Pros

• Dual illuminated orange front sight combines tritium night glow with photoluminescent pigment
• Tritium-powered three-dot system operates 24/7 without batteries or electronics
• Listed for Glock Gen 1 through Gen 5 pistols including MOS configurations

Cons

• Listing mentions slimline models 42, 43, 43X, and 48, so full-size Glock 34 slide fit must be confirmed
• Provides a fixed iron sight sight picture rather than an illuminated projection reflex dot
• Overall sight height is unspecified for co-witnessing through mounted red dot windows

6

TSA® Rear Sight Dovetail Red Dot Optic Mount Plate for

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.6
• Brand
  TSA

Key specs2

Optic Footprint Match

Shield RMSc, Holosun 407K/507K, Romeo Zero

Mounting Hardware

Slides directly into the factory Glock rear sight dovetail and secures with included mounting screws and an installation tool, avoiding custom slide machining.

Pros & cons33

Pros

• Adapts standard non-MOS Glock Gen 1-5 slides to accept RMSc footprint micro optics
• Compatible with popular micro sights including Holosun 407K, 507K, EPS Carry, and Shield RMSc
• Includes mounting screws and a dedicated T10 installation wrench in the package

Cons

• Dovetail mount elevates optic height significantly compared to direct slide milling
• Requires removing the rear factory iron sight, eliminating standard iron backup sighting
• Incompatible with Glock MOS factory optic-cut slides

7

ADE RD3-006x Green Dot + Rear Sight Optic Mounting Plate/Adapter

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.1
• Brand
  Ade Advanced Optics

Key specs2

Reticle Visibility

High-contrast green dot illumination

Installation Method

Designed specifically for standard non-MOS Glock slides by replacing the factory rear dovetail sight with the included mounting adapter.

Pros & cons33

Pros

• Green dot reticle provides elevated visual contrast against outdoor foliage and bright light
• Bundled dovetail mounting plate enables installation on standard non-MOS Glock slides
• All-in-one package includes both the reflex optic and the slide adapter bracket

Cons

• Dovetail adapter plate will not fit factory Glock MOS optic-cut slides
• Elevated optic mount changes presentation height and muscle memory from standard sights
• Dot MOA measurement and battery operating runtime are not specified by the maker

8

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

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.5
• Brand
  Ade Advanced Optics

Key specs2

Handgun Model Match

Glock MOS 17, 19, 34, 35, 40, 41

Illumination Type

Red reflex reticle dot

Pros & cons33

Pros

• Tailored specifically to fit Glock factory MOS slides including the Glock 34 Gen 5
• Open reflex sight layout offers rapid target transitions for competitive shooting
• Red illuminated dot assists with rapid target alignment over conventional black irons

Cons

• Cannot be installed on standard non-MOS Glock slides without an aftermarket dovetail plate
• Reticle dot MOA diameter and specific brightness settings are omitted from specifications
• Waterproof ratings and lens coating specifications are not provided

9

Ade Advanced Optics RD3-012-G Green Dot Micro Mini Reflex Sight

View on Amazon

• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  9.7
• Brand
  Ade Advanced Optics

Key specs2

Reticle Visibility

Green micro mini reflex dot

Form Factor

Micro mini reflex profile minimizes slide bulk and overhang on the Glock 34 while maintaining an illuminated green aiming reference.

Pros & cons33

Pros

• Green reflex dot delivers enhanced reticle contrast against bright daytime targets
• Micro mini reflex footprint keeps reciprocating slide mass low on Glock 34 MOS pistols
• Configured for direct mounting onto factory Glock MOS slide platforms

Cons

• Requires a factory MOS cutout and is incompatible with standard non-MOS dovetails
• Manufacturer leaves reticle MOA size and battery lifespan unspecified
• Compact optical window requires stricter presentation discipline than oversized competition lenses

Last update on 2026-09-26 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Does a red dot sight mount directly to a Glock 34 Gen 5 MOS slide without an adapter plate?

It depends on the specific optic footprint design. Dedicated sights engineered specifically for the factory cut, including the Ade RD3-013, Ade RD3-009-MOS, and Ade Advanced Optics RD3-012-G green dot micro mini reflex sight, mount directly onto the Glock MOS slide. Other optics built for full-sized handguns, such as the Holosun HS407C X2 open reflex sight, use different footprint layouts and require a dedicated adapter plate to seat securely on the factory slide cut.

How do you install a red dot sight if your Glock 34 Gen 5 is a non-MOS model?

You must install a rear sight dovetail mounting plate into the factory rear sight slot. The ADE RD3-006x green dot system comes with a rear sight optic mounting plate adapter designed for standard non-MOS Glock models. Alternatively, you can use a separate adapter like the TSA rear sight dovetail red dot optic mount plate for Glock Gen 1-5, which drifts into the rear sight dovetail to host micro optics without requiring permanent slide milling.

What optic footprints fit aftermarket Glock rear dovetail mounting plates?

Dovetail plates are machined for specific optic patterns rather than universal fit. For example, the TSA rear sight dovetail optic mount plate fits RMSc footprint optics, accommodating models such as the Holosun 407K and 507K, EPS Carry, Shield RMSc, and Romeo Zero. Always confirm that your chosen optic matches the exact screw hole pattern and recoil lugs of the adapter plate before mounting, as mismatched footprints prevent the optic from securing properly.

Can you keep usable backup iron sights on a Glock 34 Gen 5 with an optic installed?

Yes, but your sight visibility depends on the height of the iron sights relative to the optic base. Sets like the XS Sights 3-dot tritium night sights are listed to fit Glock Gen 1-5 and MOS pistols, featuring a dual illuminated orange front sight with a tritium and photoluminescent glow dot designed to maintain alignment above an optic cut. Standard-height options like the Ameriglo Classic Series three-dot tritium design Glock set fit Gen 5 9mm handguns, but they can be obscured if mounted behind thicker dovetail adapter plates.

Which reticle size works better for Glock 34 target and competition shooting: 2 MOA or 5 MOA?

Your target distance and stage speed dictate the ideal reticle size. A fine 2 MOA dot, featured on the Holosun HS407C X2, covers less target area at distance, making it well-suited for precise bullseye placement. While rifle shooters often rely on variable optics like a Trijicon LPVO for rapid target transitions at varied distances, pistol competitors shooting fast, close-range stages often favor a broader 5 MOA dot, like the one on the RMT S2 foldable red dot reflex sight, for instant visual tracking during slide cycling.

How do you prevent reflex sight mounting screws from backing out under 9mm recoil?

Verify that your screw lengths provide sufficient thread engagement without bottoming out against the slide. Dovetail plates like the TSA rear sight dovetail mount include dedicated mounting screws matched to their specific base, reducing the risk of stripped threads. Always clean any factory oil from the screw threads, confirm proper torque in your optic manual, and inspect the optic body after shooting to confirm the optic has not shifted on the slide.