10 Best Holosun Reflex Sights of 2026 For Every Mounting Footprint

1

HOLOSUN HE510C-GR Multi-Reticle Green 2 MOA Dot & 65 MOA

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• ARS Mark

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  8.6
• Brand
  HOLOSUN

Key specs1

Primary Platform

Built for long guns with an integrated rail clamp, offering a wide open viewing window rather than a handgun slide footprint.

Pros & cons42

Pros

• Dual reticle design pairs a precise 2 MOA green dot with a wide 65 MOA circle for rapid target alignment
• Solar FailSafe technology provides continuous backup illumination using ambient light
• Shake Awake motion activation engages illumination instantly upon weapon movement
• Waterproof open reflex housing built specifically for long gun platforms

Cons

• Sized specifically for long gun rails and too wide for handgun slides
• Open emitter window requires manual checking to keep dust and rain off the LED

2

HOLOSUN HS507C X2 Red 2 MOA Dot & 32 MOA

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  8.5
• Brand
  HOLOSUN

Key specs1

Reticle Flexibility

• 2 MOA dot for precise target alignment
• 32 MOA ring for fast target framing
• Red illumination with Solar Failsafe backup

Pros & cons42

Pros

• Multi-reticle system allows switching between a 2 MOA red dot and a 32 MOA circle
• Solar Failsafe supplements battery power and automatically balances reticle intensity
• Shake Awake technology conserves battery life while keeping the optic ready on movement
• Rugged aluminum housing engineered to withstand full-sized handgun slide cycling

Cons

• Footprint requires a compatible full-sized slide cut or an adapter plate
• Open emitter design leaves the internal projector exposed to outdoor debris

3

HOLOSUN 510C & HM3X Combo RED/Green Multi-Reticle Circle Dot Open

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  8.3
• Brand
  HOLOSUN

Key specs1

Magnification Setup

3x flip-to-side magnifier paired with open reflex

Pros & cons32

Pros

• Includes a 3x flip-to-side magnifier for transitioning between close quarters and mid-range targets
• Multi-reticle green circle dot provides high visual contrast against bright backdrops
• Quick-detach magnifier mount flips aside instantly for unmagnified open reflex viewing

Cons

• Combined optic and magnifier assembly adds significant weight to the rifle rail
• Takes up more Picatinny rail space than a standalone reflex sight

4

HOLOSUN HS507C-X2-BB Red 2 MOA Dot & 32 MOA Circle

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  8.2
• Brand
  HOLOSUN

Key specs1

Finish and Styling

Factory Burnt Bronze aluminum housing

Pros & cons42

Pros

• Burnt Bronze finish matches custom firearm color schemes without aftermarket cerakote
• Dual reticle options include a 2 MOA dot and 32 MOA circle for adaptable target acquisition
• Parallax-free optical profile with durable aluminum build for full-sized handgun slides
• Solar Failsafe keeps the reticle powered in daylight if the primary battery fails

Cons

• Color finish may not match standard black handgun slides or accessories
• Requires verifying slide footprint compatibility before direct slide mounting

5

Holosun DRS-TH Thermal Fusion Reflex Sight with Digital MRS Reticle,

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  8.2
• Brand
  HOLOSUN

Key specs1

Thermal Imaging Capabilities

• Digital MRS multi-reticle system
• 5 selectable thermal image modes
• 8X digital zoom for distant targets
• On-board video capture functionality

Pros & cons43

Pros

• Thermal fusion technology overlays thermal detection directly onto a reflex sight picture
• Five selectable image modes tailor thermal visibility to varying environmental thermal signatures
• Up to 8x digital zoom extends target identification range beyond standard unmagnified optics
• On-board video recording captures footage directly through the thermal optic

Cons

• Substantially heavier and bulkier than standard reflex dot sights
• Digital thermal processing requires active power management compared to basic passive dots
• Advanced sensor setup requires learning menu navigation rather than basic push-button zeroing

6

HOLOSUN HE407K-GR-X2 6MOA Green Dot-Only Open Reflex Sight w/Shake Awake

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  8.0
• Brand
  HOLOSUN

Key specs1

Close-Range Acquisition

The 6 MOA green dot reticle speeds up target acquisition during fast defensive draws at defensive distances.

Pros & cons33

Pros

• Large 6 MOA green dot provides instant close-range reticle acquisition
• Compact K-series profile engineered specifically for concealed carry and slimline slides
• Shake Awake motion sensor activates the dot immediately when drawn

Cons

• Dedicated 6 MOA dot lacks the fine precision of a smaller 2 MOA dot at extended distances
• Dot-only configuration does not offer a multi-reticle circle option
• Footprint does not directly fit full-size RMR cuts without an adapter plate

7

HOLOSUN HS510c Reflex Red Dot Sight + HM3X 3X Magnifier

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  8.0
• Brand
  HOLOSUN

Key specs1

Magnified Target Identification

Adding the 3X magnifier extends the operational reach of the 510C red dot for positive target confirmation downrange.

Pros & cons32

Pros

• Complete combo kit pairs an open reflex red dot sight with a 3X magnifier
• Flip-to-side mount lets the shooter toggle quickly between 1x reflex speed and 3x magnification
• Broad lens window on the 510C offers an open field of view for rapid target transitions

Cons

• Red reticle may wash out against certain red or high-glare desert backgrounds
• Magnifier alignment requires checking rail height to ensure co-witness alignment

8

HOLOSUN HS510C-FDE-R Red Multi Reticle, Open Reflex Sight, Solar, Shake

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  7.9
• Brand
  HOLOSUN

Key specs1

Exterior Finish

Flat Dark Earth (FDE) protective housing

Pros & cons32

Pros

• Flat Dark Earth finish provides factory color matching for desert and tan rifle builds
• Multi-reticle system allows choosing between fine precision and wide circle framing
• Dual power setup with Solar FailSafe and motion-activated Shake Awake technology

Cons

• FDE housing finish may show carbon staining more noticeably than standard black
• Open reflex geometry leaves the rear lens exposed to rain, snow, or mud

9

HOLOSUN HS510C 2 MOA Dot Or A 65 MOA Ring

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  7.7
• Brand
  HOLOSUN

Key specs1

Optical Window and Reticle

• 2 MOA dot or 65 MOA ring selectable pattern
• Solar power backup cell integrated on top
• Open reflex viewing architecture

Pros & cons32

Pros

• User-selectable reticle switches between a pinpoint 2 MOA dot and a wide 65 MOA ring
• Solar power cell provides daylight backup to prevent unexpected illumination loss
• Wide open reflex optical window allows rapid binocular shooting with both eyes open

Cons

• Rail mount footprint is designed for long guns and cannot mount directly to handguns
• Open emitter architecture can be obstructed if debris settles over the LED diode

10

HOLOSUN HE407C-GR X2 Green 2 MOA Dot Open Reflex Sight

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  7.1
• Brand
  HOLOSUN

Key specs1

Reticle Profile

Green 2 MOA dot only with Solar Failsafe

Pros & cons32

Pros

• 2 MOA green dot reticle delivers high contrast against outdoor greenery and daylight backgrounds
• Shake Awake sensor and Solar Failsafe ensure continuous readiness without draining the cell
• Durable parallax-free aluminum body designed specifically for full-sized handgun slides

Cons

• Dot-only model does not include a 32 MOA or 65 MOA outer ring option
• Requires verification of slide cut or RMR footprint compatibility prior to installation

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

How do you match a Holosun reflex sight to a handgun slide versus a long gun?

Look at the optic's designated firearm platform before buying. Holosun models such as the HS507C X2 and HE407C-GR X2 are engineered for full-sized handguns, while sights like the HE510C-GR are configured directly for long guns. Handgun slide cuts and mounting patterns vary across firearm models, so check your slide specifications or mounting plate options in your firearm manual to ensure direct attachment. If you are outfitting a target pistol, pairing your mount with a compatible red dot sight for Ruger Mark or matching slide footprint ensures stable alignment across rounds.

Should you choose a green reticle or a red reticle for daylight shooting?

Your shooting environment and eye contrast preference determine whether red or green works best. Holosun provides red reticle models like the HS510C and HS507C X2 alongside green options such as the HE510C-GR and HE407K-GR-X2. Green illumination offers stark visibility against bright daylight and outdoor backgrounds, while red reticles maintain crisp contrast against varied foliage or low indoor light. Confirm your typical lighting conditions before choosing between red and green variants.

What is the difference between a 2 MOA dot, a 6 MOA dot, and a multi-reticle circle?

The size and pattern of the reticle define your speed and accuracy at specific distances. A dedicated 6 MOA dot, found on the HE407K-GR-X2, promotes rapid target acquisition at defensive distances. A fine 2 MOA dot, available on the HE407C-GR X2, minimizes target obstruction for precise shot placement. Multi-reticle models give you versatile options: the HS507C X2 combines a 2 MOA dot with a 32 MOA circle, while long gun sights like the HE510C-GR feature a 2 MOA dot paired with a 65 MOA circle.

How do Shake Awake and Solar FailSafe protect your optic readiness?

Shake Awake and Solar FailSafe provide continuous operational readiness without manual switching. Shake Awake detects firearm movement to activate the optic instantly from sleep mode, preserving power until you draw or raise the gun. Solar FailSafe, built into models like the HS507C X2, HE407C-GR X2, and HE510C, uses ambient light to power the reticle if your battery runs out. Together, these systems keep your reflex sight powered and ready for immediate deployment.

Can you pair an open reflex sight with a flip-to-side magnifier?

Yes, pairing an open reflex sight with a 3x flip-to-side magnifier lets you switch quickly between close targets and extended distances. The Holosun 510C and HM3X combo set delivers a complete package with a 3x magnifier aligned directly behind the multi-reticle open reflex sight. When mounting this combination on a firearm rail, verify your optic center height and check that your backup iron sights for cowitness with red dot sights align cleanly through the optic window.

What features does the Holosun DRS-TH thermal fusion reflex sight offer?

The Holosun DRS-TH integrates digital thermal overlay directly onto a reflex sight window using a Digital MRS reticle. It provides 5 image modes, 8X digital zoom, and on-board video recording to identify targets in darkness or through visual obstruction. Because thermal fusion optics use active digital processing alongside standard reflex viewing, check your firearm rail clearance and battery management needs before mounting.