15 Best Red Dot Sight For Ruger Mark Iv 2245 Lite of 2026 To Preserve Featherlight Handling

1

Ade Advanced Optics Zantitium RD3-015 Red Dot Reflex Sight +

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  9.1
• Brand
  Ade Advanced Optics

Key specs2

Direct Mount Hardware

Includes Ruger Mark receiver plate and Picatinny plate

Included Plates

• Ruger Mark series dedicated receiver adapter plate
• Standard Picatinny rail mounting plate

Pros & cons32

Pros

• Includes a dedicated mounting plate tailored for Ruger Mark series pistols including Mark IV-Lite
• Comes with both a direct receiver plate and an alternate Picatinny plate
• Open reflex design maintains an unobstructed view across rapid target transitions

Cons

• Dot size in MOA is not stated in the listing and requires seller verification
• Added plate hardware adds an extra interface to secure with threadlocker

2

Ade Advanced Optics Bertrillium RD3-013 Red Dot Reflex Sight +

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  9.4
• Brand
  Ade Advanced Optics

Key specs2

Direct Mount Hardware

Direct receiver plate plus 20mm Picatinny base

Chassis Profile

Designed as an open reflex sight that sits low on the receiver to preserve natural pistol pointing.

Pros & cons32

Pros

• Bundled plate secures directly to Ruger Mark IV-Lite receivers without a tall rail
• Secondary Picatinny plate allows installation on standard rail configurations
• Compact reflex body keeps weight low over the lightweight upper receiver

Cons

• Listing omits specific reticle diameter and brightness runtimes
• Screws require careful torque to prevent loosening during range sessions

3

Ade Advanced Optics RD3-006 Green Dot Reflex Sight+ Optic Mounting

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  9.2
• Brand
  Ade Advanced Optics

Key specs2

Reticle Color

Green dot illumination

Receiver Attachment

Supplied with both a dedicated Ruger Mark receiver plate and a standard Picatinny plate.

Pros & cons32

Pros

• Green dot reticle provides clear contrast against dark outdoor backgrounds
• Includes the dedicated Mark series adapter plate to bypass bulky rails
• Includes an alternate Picatinny base for standard rail installations

Cons

• Green emitters typically draw more power, but runtime is unstated
• Dot diameter in MOA is not specified on the product listing

4

Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight +

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  7.4
• Brand
  Ade Advanced Optics

Key specs1

Low Profile Mounting

Mounts directly to the Mark IV receiver screw pattern using the included adapter plate.

Pros & cons32

Pros

• Dedicated Ruger Mark mounting plate keeps the sight line low to the bore
• Dual mounting options support both direct receiver and Picatinny rail setups
• Reflex housing minimizes added bulk on the Mark IV 22/45 Lite barrel

Cons

• Battery type and operating runtime must be verified with the maker
• Optical lens dimensions are omitted from the product details

5

HIVIZ RG2245LLW01 Interchangeable Front Handgun Sight for Ruger 22/45 Lite

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  9.0
• Brand
  HIVIZ

Key specs2

Sight Replacement Type

Interchangeable fiber optic front sight

Model Compatibility

Configured strictly for the Ruger 22/45 Lite model front sight screw pattern.

Pros & cons32

Pros

• Engineered specifically for the Ruger 22/45 Lite front sight base
• Interchangeable light pipes provide customized sight acquisition in daylight
• Adds zero electronic bulk, battery dependence, or top-heavy balance changes

Cons

• Replaces only the front iron sight rather than offering a true red dot reticle
• Does not eliminate the need for traditional front and rear sight alignment

6

Williams Gun Sight Ruger MK II, III or IV “Bull

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  8.4
• Brand
  Williams Gun Sight Company

Key specs2

Barrel Compatibility

Ruger Mark II, III, and IV Bull Barrel

Factory Iron Alternative

Full iron sight replacement set for shooters seeking mechanical sights without electronic bulk.

Pros & cons32

Pros

• Complete front and rear sight set upgrades standard factory iron sights
• Delivers crisp mechanical targeting without batteries or electronic components
• Fits Ruger Mark II, III, and IV platforms machined for bull barrel sight sets

Cons

• Designed for bull barrel profiles and may require fitting verification on 22/45 Lite models
• Does not provide a projected red dot reflex sight picture

7

Feyachi Reflex Sight - Adjustable Reticle (4 Styles) Both Red

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  7.1
• Brand
  Feyachi

Key specs1

Multi-Reticle Selector

• 4 distinct reticle patterns
• Red and green dual-color illumination

Pros & cons32

Pros

• Features 4 selectable reticle styles in both red and green illumination
• Dual-color options allow rapid adaptation to changing ambient light conditions
• Wide reflex viewing window facilitates fast target acquisition during plinking

Cons

• Requires a 20mm Picatinny rail which raises the optic centerline on a Mark IV
• Larger open frame adds more top weight than ultra-compact micro reflex dots

8

OuterImpact Red Dot Adapter Mount Compatible with Ruger Mark I,

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  7.6
• Brand
  Outerimpact

Key specs2

Receiver Adapter Base

Direct receiver mount for Mark series pistols

Mounting Flexibility

Eliminates factory Picatinny rails to position compatible micro red dots low against the receiver.

Pros & cons32

Pros

• Replaces the factory Picatinny rail to seat popular micro red dots close to the bore
• Engineered for Ruger Mark I, II, III, IV, and 22/45 Lite receiver mounting patterns
• Direct receiver mounting prevents optic wobble and chin-weld shooting positions

Cons

• Does not include an optic and requires a separate compatible micro red dot
• Red dot footprint screw alignment must be verified prior to optic selection

9

TRUGLO Ruger Mark II/III Fiber Optic Front Sight Red

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  8.7
• Brand
  TRUGLO

Key specs2

Sight Replacement Type

Red fiber optic front post

Platform Match

Listed for Ruger Mark II and III; check barrel threading before mounting to Mark IV Lite.

Pros & cons32

Pros

• Bright red fiber optic element gathers ambient light for fast daytime pickup
• Lightweight metal body preserves original pistol balance without adding ounces
• Simple mechanical front replacement avoids battery management completely

Cons

• Listed for Mark II and III models, requiring fitment verification for Mark IV 22/45 Lite
• Traditional iron post setup does not provide reflex optical projection

10

EZshoot Red Green Dot Gun Sight Scope Reflex Sight, 4

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  9.6
• Brand
  EZshoot

Key specs2

Multi-Reticle Selector

4 reticle styles in red and green

Rail Clamp Style

Clamps to standard 20mm Weaver or Picatinny rails found on factory-equipped Mark IV pistols.

Pros & cons32

Pros

• Provides 4 selectable reticle patterns with both red and green illumination
• Integrated 20mm rail clamp attaches directly to the factory Mark IV Lite rail
• Wide objective reflex window provides quick target pickup for steel plinking

Cons

• 20mm rail clamp configuration positions the sight higher than direct receiver plates
• Battery runtime and specific weight are omitted from the listing details

11

CVLIFE 1X22X33 Red Green Dot Gun Sight Riflescope Reflex Sight

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  8.3
• Brand
  CVLIFE

Key specs2

Rail Interface

20mm rail mount

Lens Dimension

Features a 22x33mm reflex window with 1x magnification for wide peripheral sighting.

Pros & cons32

Pros

• Large 22x33mm reflex window provides an expansive field of view
• Dual red and green illumination helps contrast against various shooting targets
• 1x optical design allows comfortable two-eyes-open rimfire shooting

Cons

• 22x33mm housing is bulkier than micro red dots and can affect featherlight balance
• Requires the pistol's 20mm rail base, increasing overall height over bore

12

Bushnell Trophy TRS-25 Red Dot Sight Riflescope, 1x20mm, Black

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  8.4
• Brand
  Bushnell

Key specs2

Enclosed Tube Body

1x20mm enclosed housing

Housing Configuration

Cylindrical tube build shields optical glass and reticle emitter from outdoor debris.

Pros & cons32

Pros

• Enclosed 20mm tube construction protects internal optics from dirt and rain
• 1x magnification supports rapid, two-eyes-open target tracking
• Compact cylindrical body mounts cleanly to standard Picatinny receiver rails

Cons

• Enclosed tube design adds slightly more bulk than open micro reflex sights
• Dot size and battery life are not detailed in this listing description

13

MidTen 2MOA Micro Red Dot Sight 1x25mm Reflex Sight Waterproof

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  7.1
• Brand
  MidTen

Key specs2

Dot Specification

2 MOA red dot

Riser Clearance

Comes with a 1 inch riser mount that should be left off to keep pistol height minimal.

Pros & cons32

Pros

• Precise 2 MOA red dot allows fine aiming on small rimfire target bullseyes
• Waterproof, shockproof, and fog-proof build withstands outdoor range use
• Includes a removable 1 inch riser mount alongside low-mounting options

Cons

• Using the included 1 inch riser creates an excessively tall sight line on a pistol
• 25mm enclosed housing is taller than low-profile micro open reflex designs

14

Bushnell Advance Micro Reflex Sight 1x5 MOA Dot, Black

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  7.1
• Brand
  Bushnell

Key specs2

Dot Specification

5 MOA red dot

Form Factor

Ultra-compact micro reflex sight designed to sit low on handgun slides and receivers.

Pros & cons32

Pros

• 5 MOA dot diameter enables lightning-fast reticle acquisition during rimfire speed drills
• True micro reflex footprint keeps total pistol balance light and nimble
• Compact low-profile housing helps maintain a natural handgun point of aim

Cons

• 5 MOA dot covers more target area at long distance than smaller 2 MOA dots
• Requires checking whether an adapter plate or Picatinny clamp is included

15

Sightmark Ultra Shot A-Spec Reflex Sight, Dark Earth

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  9.7
• Brand
  Sightmark

Key specs2

Finish and Form Factor

Dark Earth open reflex frame

Optic Profile

Full-sized reflex window offers quick sight recovery but adds more mass than micro sights.

Pros & cons32

Pros

• Wide reflex sight window allows rapid target transitions across steel stages
• Durable aluminum alloy frame finished in Dark Earth protective coating
• Provides an open sight picture that preserves downrange peripheral awareness

Cons

• Full-sized reflex chassis is heavier than micro reflex sights on a 22/45 Lite
• Wider footprint can make a lightweight rimfire pistol feel top-heavy

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 the Ruger Mark IV 22/45 Lite receiver or require an adapter?

It depends on the specific sight and base system you choose. Certain optic packages, such as the Ade Advanced Optics models (including the RD3-015 Zantitium, RD3-013 Bertrillium, RD3-006, and RD3-009 Crusader), come with a dedicated optic mounting plate made for Ruger Mark series pistols like the IV-Lite, as well as a Picatinny plate. Other configurations rely on a dedicated multi-pattern base, such as the OuterImpact Red Dot Adapter Mount compatible with Ruger Mark series and 22/45 receivers. If your optic comes strictly with a standard 20mm rail clamp, like the EZshoot or CVLIFE reflex sights, you must install it directly onto the pistol's factory top rail rather than into the bare receiver holes.

Will adding a red dot sight make a 22/45 Lite feel top-heavy or bulky?

Choosing a low-profile micro reflex optic keeps the pistol balanced, but tall mounts or larger sights can quickly create an awkward, top-heavy feel. Compact reflex sights like the Bushnell Advance Micro Reflex Sight sit tight against the receiver, preserving the handgun's natural handling. On the other hand, running an enclosed tube optic with a raised base, such as the MidTen 1x25mm sight when paired with its 1 inch riser mount, adds unnecessary height and shifts mass upward. Sticking to direct receiver plates or low rail-mounted reflex housings prevents that top-heavy balance shift.

Is a 2 MOA dot or a 5 MOA dot better for rimfire shooting?

Your target style determines the ideal reticle size. A 2 MOA dot, such as the one on the MidTen 2MOA Micro Red Dot, covers less of the target and offers a precise aiming point for slow, tight grouping. If you prioritize fast target acquisition on steel plates or plinking targets, a larger dot like the 5 MOA reticle on the Bushnell Advance Micro Reflex Sight is easier to locate instantly. Sights like the Feyachi Reflex Sight and EZshoot optic feature 4 adjustable reticle styles with both red and green options, giving you alternative reticle shapes if you want flexibility beyond a standard round dot.

Do you need a riser mount when installing an optic on a Ruger Mark IV?

No, a riser mount lifts the optic too high and disrupts your natural point of aim on a rimfire handgun. Some optics, like the MidTen 1x25mm reflex sight, include a 1 inch riser mount intended for flat-top carbines. While rifle shooters choosing an optic for rapid target acquisition often require elevated mounts, a Ruger Mark IV 22/45 Lite requires the sight to sit as low to the bore as possible. You should always mount the optic directly to the factory rail or use a direct receiver plate without any riser blocks.

Can you get both red and green illuminated reticles on compatible rimfire sights?

Yes, several reflex sights compatible with the Ruger Mark IV rail feature switchable illumination colors. Options like the Feyachi Reflex Sight, EZshoot Red Green Dot Sight, and CVLIFE 1x22x33 allow you to toggle between red and green reticle settings depending on lighting and background contrast. If you prefer a single dedicated color, models like the Ade Advanced Optics RD3-006 provide a dedicated green dot setup. Always verify the manufacturer specifications to see whether an optic contains dual-color diodes or a single fixed color.

How do you confirm mounting compatibility before buying an optic for a 22/45 Lite?

Check whether the optic uses a dedicated receiver adapter or requires a Picatinny rail. Optics bundled with Ruger Mark plates, such as the Ade Advanced Optics series or the OuterImpact adapter mount, attach straight to the pre-drilled holes on your Ruger receiver once the factory rail is removed. In contrast, models like the Bushnell Trophy TRS-25 1x20mm require the factory 20mm rail to remain on the pistol. Review the included hardware list on the product page to verify whether the sight includes the proper mounting screws or if you need to source a separate plate.