17 Best Red Dot Sights For Ruger Mark Iv 2245 Lite of 2026 For Low-Profile Balance

1

EGW Sight Mount for Ruger Auto Dovetail – Vortex Venom/Viper,

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• ARS Mark

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  9.0
• Brand
  EGW

Key specs2

Dovetail interface

Replaces rear sight dovetail

Footprint compatibility

• Vortex Venom and Viper
• Burris FastFire
• Docter red dot sights

Pros & cons32

Pros

• Mounts directly into the factory rear sight dovetail without requiring a top Picatinny rail
• Machined from 7075 aluminum for sturdy optic retention during rapid rimfire fire
• Compatible with popular micro red dots including Vortex Venom, Viper, and Burris FastFire

Cons

• Requires drifting out the factory rear iron sight from the dovetail slot
• Lacks Picatinny rail adaptability if you want to switch to tube-style optics

2

TANDEMKROSS "Shadow Picatinny Rail for Ruger Mark Series and 22/45

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  7.7
• Brand
  TANDEMKROSS

Key specs2

Receiver mounting

Direct screws to factory drilled holes

Rail profile

Replaces factory top rail to mount any standard Picatinny-compatible optic on your 22/45 Lite.

Pros & cons32

Pros

• Direct screw-on fit designed specifically for Ruger Mark series and 22/45 receivers
• Provides a sturdy Picatinny rail section for mounting standard cross-bolt optics
• Maintains the pistol's natural balance with an aluminum rail replacement

Cons

• Adds a rail layer that keeps optics sitting higher than direct slide adapter plates
• Requires Picatinny-compatible optic clamps rather than mounting bare micro footprints

3

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

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  7.4
• Brand
  Ade Advanced Optics

Key specs2

Included base adapters

Ruger Mark plate and Picatinny base

Optic design

Open reflex sight paired with a dedicated adapter plate that attaches to Ruger Mark receiver holes.

Pros & cons32

Pros

• Comes bundled with a dedicated mounting plate fitting Ruger Mark IV and IV-Lite receivers
• Includes a secondary Picatinny plate for flexible mounting on standard handgun rails
• Open reflex sight window delivers quick dot acquisition during rapid target transitions

Cons

• Multi-plate design requires verifying thread locking screws before range sessions
• Specific battery runtime and weather sealing ratings are unstated on the listing

4

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

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  9.0
• Brand
  HIVIZ

Key specs2

Sight illumination

Interchangeable fiber optic LitePipe

Barrel fitment

Engineered specifically for the Ruger 22/45 Lite factory front screw location.

Pros & cons32

Pros

• Built specifically for the Ruger 22/45 Lite front sight mounting pattern
• Interchangeable LitePipe system allows switching fiber optic colors easily
• Retains the handgun's featherweight front balance without adding optic bulk

Cons

• Front sight only and provides no electronic dot projection or rear sight notch
• Requires ambient light to illuminate the fiber optic pipe effectively

5

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

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  8.4
• Brand
  Williams Gun Sight Company

Key specs2

Sighting mechanism

Front and rear fiber optic set

Model suitability

Designed for bull barrel Ruger MK series pistols rather than standard Lite barrel sleeves.

Pros & cons32

Pros

• Provides a complete front and rear high-visibility fiber optic sight set
• Eliminates battery dependency and electronic failure risks during outdoor shooting
• Rugged metal construction withstands frequent transport and field handling

Cons

• Designed for MK II, III, and IV bull barrels and requires verifying 22/45 Lite barrel fit
• Does not offer the single-plane speed of an illuminated electronic red dot

6

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

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  7.1
• Brand
  Feyachi

Key specs2

Reticle configurations

4 reticle styles in red and green

Rail attachment

Standard 20mm Picatinny rail mount

Pros & cons32

Pros

• Features 4 distinct reticle patterns to match different target sizes and distances
• Dual red and green illumination provides flexible contrast against varied backdrops
• Wide open reflex window allows rapid target acquisition for casual plinking

Cons

• Bulky sight housing adds noticeable top weight to a lightweight 22/45 Lite receiver
• Requires a 20mm Picatinny rail base which raises your overall height over bore

7

OuterImpact Red Dot Adapter Mount Compatible with Ruger Mark I,

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  7.6
• Brand
  Outerimpact

Key specs2

Receiver interface

Direct mounting to Mark IV receiver

Adapter versatility

Replaces top rails to mount popular micro red dot patterns close to the bore line.

Pros & cons32

Pros

• Secures directly to Ruger Mark IV and IV-Lite factory receiver holes without a tall rail
• Multi-pattern layout accommodates dozens of popular micro red dot footprints
• Preserves the 22/45 Lite's nimble handling by keeping the optic low and centered

Cons

• Adapter plate only, requiring you to source the red dot sight separately
• Mounting screws and alignment pins must be matched carefully to your specific optic

8

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

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  9.1
• Brand
  Ade Advanced Optics

Key specs2

Bundle configuration

RD3-015 sight with Ruger Mark and Picatinny plates

Dot color

Red reflex reticle

Pros & cons32

Pros

• Bundled Ruger Mark IV-Lite plate mounts directly to the receiver screw holes
• Includes a separate 20mm Picatinny base for cross-platform versatility
• Large reflex sight window delivers a clear sight picture for speed shooting

Cons

• Wider reflex housing can feel slightly bulky on the slim 22/45 Lite receiver
• Exact moisture resistance and battery runtime are omitted from manufacturer data

9

TRUGLO Ruger Mark II/III Fiber Optic Front Sight Red

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  8.7
• Brand
  TRUGLO

Key specs2

Front post style

Red fiber optic rod

Compatibility notice

Matches Ruger Mark II and III barrels; verify front screw thread before installing on a Mark IV Lite.

Pros & cons32

Pros

• High-contrast red fiber optic rod gathers ambient light for fast front sight tracking
• Compact, lightweight steel base adds zero noticeable muzzle weight to your pistol
• Clean single-screw installation preserves the factory receiver profile

Cons

• Explicitly labeled for Mark II and III, requiring verification for Mark IV Lite screw pitch
• Supplies only a front post rather than an electronic red dot or complete sight set

10

CVLIFE 1X22X33 Red Green Dot Gun Sight Riflescope Reflex Sight

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  8.3
• Brand
  CVLIFE

Key specs2

Window dimensions

22x33mm reflex lens

Illumination colors

Dual red and green settings

Pros & cons32

Pros

• Generous 22x33mm lens window provides a wide field of view for quick target finding
• Red and green reticle options let you adjust for changing outdoor lighting conditions
• Standard 20mm rail base mounts easily to the factory Mark IV Picatinny rail

Cons

• Stacking this wide optic onto a factory rail increases height over bore significantly
• Heavier reflex chassis alters the lightweight pointability of the 22/45 Lite barrel

11

EZshoot Red Green Dot Gun Sight Scope Reflex Sight, 4

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  9.6
• Brand
  EZshoot

Key specs2

Reticle pattern options

4 selectable reticle styles

Mounting standard

20mm Picatinny rail base

Pros & cons32

Pros

• 4 reticle style options let you select between fine dots and large target rings
• Dual-color red and green illumination maintains visibility against dark backdrops
• Integrated cross-bolt mount fits straight onto 20mm receiver rails

Cons

• Tall rail clamp creates high sight height that demands conscious holdover adjustment
• Added mass on top of the receiver can make the pistol feel top-heavy during transitions

12

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

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  9.4
• Brand
  Ade Advanced Optics

Key specs2

Included plates

• Mark series receiver adapter plate
• Standard Picatinny rail plate

Sight model

Bertrillium RD3-013 red dot

Pros & cons32

Pros

• Includes a direct-fit plate for Ruger Mark IV Lite receivers to eliminate rail bulk
• Ships with a standard Picatinny adapter plate for alternative firearm mounting
• Compact micro reflex footprint helps retain the factory balance of your 22/45 Lite

Cons

• Requires precise alignment and thread locker on adapter screws during initial setup
• Factory documentation lacks specific battery life ratings and water submersion specs

13

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

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  9.2
• Brand
  Ade Advanced Optics

Key specs2

Reticle tint

Green dot reflex illumination

Mounting system

Includes Mark IV Lite plate and Picatinny base

Pros & cons32

Pros

• Green dot reticle provides crisp contrast against bright outdoor backgrounds
• Comes with both a direct Ruger Mark series mounting plate and a Picatinny base
• Low-profile reflex design prevents top-heavy sway during fast double-taps

Cons

• Green LED diode typically consumes battery power faster than comparable red emitters
• Lens coating specifications and moisture ingress ratings are not stated in the data

14

Ade Advanced Optics Delta RD3-012 Red Dot Reflex Sight +

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  7.3
• Brand
  Ade Advanced Optics

Key specs2

Base hardware

Dedicated Mark plate plus Picatinny mount

Optical chassis

Delta RD3-012 compact reflex housing

Pros & cons32

Pros

• Direct-to-receiver Mark series plate keeps the dot positioned close to the bore
• Secondary Picatinny plate included for mounting across standard accessory rails
• Lightweight micro reflex construction complements the 22/45 Lite barrel shroud

Cons

• Micro sight frame requires consistent draw presentation to acquire the dot swiftly
• Water resistance rating and battery replacement steps should be confirmed before purchase

15

Bushnell Advance Micro Reflex Sight 1x5 MOA Dot, Black

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  7.1
• Brand
  Bushnell

Key specs2

Dot measurement

5 MOA red dot reticle

Chassis profile

Compact micro reflex footprint designed to minimize top-heavy bulk on lightweight rimfire pistols.

Pros & cons32

Pros

• 5 MOA red dot size allows swift target pickup during fast steel shooting strings
• Compact micro reflex chassis keeps weight minimal on lightweight rimfire receivers
• Low physical profile reduces excessive height over bore when mounted on low adapters

Cons

• 5 MOA dot covers more target area at longer distances compared to finer 2 MOA dots
• Requires an appropriate footprint adapter plate or rail mount for the 22/45 Lite

16

Sightmark Ultra Shot R-Spec Reflex Sight , Black

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  8.1
• Brand
  Sightmark

Key specs2

Housing type

R-Spec aluminum reflex sight

Handgun handling impact

Full-size reflex sight footprint that requires mounting onto a Picatinny rail.

Pros & cons32

Pros

• Sturdy aluminum housing provides robust protection around the reflex lens
• Broad viewing window enables immediate dot acquisition with both eyes wide open
• Direct Picatinny clamp connects instantly to factory Ruger Mark IV top rails

Cons

• Large, heavy chassis ruins the featherweight pointability of the 22/45 Lite
• Substantial height over bore exaggerates point-of-impact shifts at varying rimfire distances

17

TRUGLO Tru-Brite Open Red-Dot Dual-Color Multi Reticle Black

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  9.0
• Brand
  TRUGLO

Key specs2

Sight window layout

Dual-color open reflex multi-reticle

Rail requirement

Picatinny or Weaver rail interface

Pros & cons32

Pros

• Dual-color illumination with multiple reticle patterns offers shooting flexibility
• Wide open viewing window helps acquire targets quickly during rapid plinking
• Integrated rail mount attaches readily to standard Picatinny and Weaver rails

Cons

• Adds substantial bulk and upper receiver weight to a lightweight aluminum handgun
• High rail-mounted design forces your line of sight well above the natural bore axis

Last update on 2026-10-02 / 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 is an adapter plate required?

It depends on the optic design, as most reflex sights require either a dedicated adapter plate or a mounting rail to interface with the receiver. Optic packages such as the Ade Advanced Optics Crusader RD3-009, Zantitium RD3-015, Bertrillium RD3-013, and Delta RD3-012 include a direct mounting plate specifically contoured for Ruger Mark I, II, III, IV, and IV-Lite receivers alongside a Picatinny plate. Standalone adapters like the OuterImpact Red Dot Adapter Mount secure directly into the factory receiver holes, while the EGW Sight Mount uses the rear dovetail slot. If your chosen sight features an integrated rail clamp, such as the Sightmark Ultra Shot R-Spec or CVLIFE reflex sight, you must install a receiver rail first.

Which mounting footprint matches the Ruger Mark IV factory receiver holes?

The factory drilled and tapped receiver holes do not match micro red dot footprints directly. Installing a reflex optic cleanly requires an intermediate mount, such as the OuterImpact adapter plate or the plates bundled with Ade Advanced Optics models like the RD3-006 or Crusader RD3-009. The EGW Sight Mount bypasses the top receiver holes entirely, mounting into the Ruger auto dovetail slot to fit Vortex Venom, Viper, Burris FastFire, and Docter footprints using 7075 aluminum construction. Always verify whether your optic uses a Docter, RMR, or proprietary base pattern before selecting your mounting hardware.

Will adding a red dot sight make the Ruger Mark IV 22/45 Lite feel top-heavy?

Compact micro reflex sights preserve the light handling of the pistol, whereas oversized reflex sights can noticeably disrupt balance. Unlike long-gun setups where shooters balance heavier glass like a Leupold LPVO for rapid target acquisition, the 22/45 Lite features a lightweight aluminum barrel shroud that is sensitive to added top weight. Low-profile micro sights like the Bushnell Advance Micro Reflex Sight with a 1x5 MOA dot or the Ade Advanced Optics Crusader RD3-009 keep weight centered over the grip. Full-sized reflex sights like the Sightmark Ultra Shot R-Spec add broader housings that can raise the handgun's center of gravity and exaggerate muzzle movement.

How does a direct adapter plate compare to a 20mm Picatinny rail on the 22/45 Lite?

A direct adapter plate positions the optic lower to the bore axis, while a 20mm rail provides wider optic clamping flexibility at the expense of added height. Rail accessories like the TANDEMKROSS Shadow Picatinny Rail allow you to install clamp-on sights like the EZshoot, CVLIFE 1X22X33, or TRUGLO Tru-Brite Open Red-Dot. However, stacking a clamp mount on top of a rail increases height-over-bore, making quick target pickup less natural. While heavier target platforms easily accommodate taller setups like a Trijicon LPVO for speed and distance, rimfire speed shooting benefits from direct plates like the OuterImpact mount that sit flush against the receiver.

Can I keep my iron sights installed when mounting a red dot optic?

Front sights can typically remain on the barrel, but rear iron sight retention depends entirely on your mounting setup. Dovetail adapter plates, such as the EGW Sight Mount, require removing the factory rear sight assembly to anchor the plate into the dovetail slot. If you use receiver-top mounts like the TANDEMKROSS Shadow Picatinny Rail or the OuterImpact adapter plate, you can keep front sight upgrades like the HIVIZ RG2245LLW01 interchangeable front sight or TRUGLO fiber optic sight installed. Traditional sight sets like the Williams Gun Sight set do not cowitness through red dot windows, serving instead as standalone replacements for factory irons.

Should you choose a red or green dot reticle for outdoor rimfire shooting?

Your choice between red and green reticle illumination comes down to contrast against your specific range environment. Multi-reticle optics like the Feyachi Reflex Sight, TRUGLO Tru-Brite, CVLIFE 1X22X33, and EZshoot provide four selectable reticle patterns with both red and green illumination to match changing lighting conditions. Dedicated micro sights like the Ade Advanced Optics RD3-006 provide a dedicated green dot, whereas models like the Bushnell Advance Micro Reflex Sight feature a red 1x5 MOA dot. Green dots often stand out crisply against dark or dusty backdrops, while red illumination provides sharp contrast against bright grass and sunny outdoor backdrops.