Best Micro Red Dot for Pistol [5 Mini Sights 2021]

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best micro red dot for pistol


Best Micro Red Dot for Pistol [5 Mini Sights 2021]

Posted By John

There are lots of micro red dots for pistols on today’s market and probably even more buying guides to find the best micro red dot for pistol.

Why is our buying guide different from others?

 We have tested every red dot and compiled this list of the best micro red dot for pistol in 2021.

Here is the List;

  • HOLOSUN Pistol Red Dot [HS507K-X2].
  • SIG SAUER Romeo Zero Mini Red Dot Pistol Sight.
  • AT3 Tactical ARO Budget Pistol Red Dot Sight.
  • Trijicon RMR RM06-C-700672 Red Dot.
  • Leupold DeltaPoint Pro Micro Dot.

5 Best Micro Red Dot for Pistol [2021]

HOLOSUN Pistol Red Dot Sight [HS507K-X2]

HOLOSUN Pistol Red Dot Sight

Specifications and Features:

  • Brand: Holosun
  • Model: Model is HS507K-X2.
  • Magnification Power: Power is fixed 1x.
  • Color: Comes in black color.
  • Weight: Weight is only 1 oz.
  • Material: Housing material is 7075 T6 Aluminum.
  • Surface Finish: Anodized surface finish.
  • Dimensions: Dimensions are 1.6×0.98×0.95 inches,
  • Window size: 0.58×0.77 inches window size.
  • Reticle: Comes with Multi reticle styles.
  • Reticle Color: Red colored reticle.
  • Light Wavelength: Its reticle light wavelength is 650 nm.
  • Parallax: Parallax free red dot sight.
  • Eye Relief: Unlimited Eye relief.
  • Adjustments: 1 MOA adjustment per click.
  • Battery: Power source is CR1632 battery.
  • Battery Life: Up to 50,000 hours battery life.
  • Brightness Levels: 10 DL and 2 Night Vision brightness settings.
  • Storage Temperature: From -20℃ to 65℃.
  • Working Temperature: Ranges from -20℃ to 51℃.
  • Submersion: IP67 submersion rating.
  • Vibration: Up to 5000G vibration rating.
  • Warranty: Lifetime warranty by Holosun. 
Package Contents
Holosun HS507K-X2 Mini Red Dot
Multi Tools
User Manual
Lens Cleaning Cloth
CR1632 Battery

Product Description:

Holosun has gone above and beyond from their competitors with their constant innovation and improvements in red dot sights. Their durability and price tag is hard to beat. 

This red dot sight was truly designed to be used on your concealed carry pistol. It is impressively durable, thanks to its light yet rugged 7075 T6 aluminum construction material.

Shake Awake is one of the big things that separates HS507K-X2 from the rest of the micro red dots for pistols. It senses the motion and motionlessness to activate and deactivate the LEDs respectively.

Its power source is a CR1632 battery. You can get 50k hours of battery life to power this red dot optic. 10 Day light and 2 night vision compatible brightness settings are enough for all lighting needs.      

This best micro red dot for pistol also comes with the Lock Mode. Its lock mode feature prevents the unintentional button presses when you are using the optic. Moreover, the side access battery compartment allows you to change the battery without unmounting it.

This Holosun pistol red dot has a multi reticle system. It is equipped with the 2 MOA Dot and 32 MOA Circle. You can turn off or on certain sections of this reticle system to select the perfect reticle for every situation. 

Pros and Cons of Holosun HS507K-X2 Mini Red Dot Sight for Pistols

  • Shake Awake inactivates the LED by sensing motionlessness.
  • Lock Mode feature prevents unintentional button presses.
  • Multilayer coatings for maximum light transmission.
  • Weight is almost nothing.
  • Removable battery compartment.
  • 50,000 hour life per battery.
  • Manufactured outside of the United States.
  • No Auto Brightness Adjustments.

SIG SAUER Romeo Zero [Best Mini Red Dot Sight for Pistol]

Best Mini Red Dot Sight for Pistol

Specifications and Features:

  • Brand: SIG SAUER.
  • Model: Romeo Zero.
  • Magnification Type: Mag type is fixed.
  • Magnification: 1x Fixed magnification Power.
  • Obj Lens Dia: Objective lens diameter is 24 mm.
  • Reticle: 3 MOA Red Dot reticle.
  • Reticle Color: Reticle color is red.
  • Overall Length: Overall length is 1.6 inches.
  • Width: Width of the micro red dot is 0.93 inches. 
  • Height: Its height is also 0.93 inches.
  • Weight: Ultra lightweight mini sight and weighs only 0.4 oz.
  • Battery: SIG SAUER Romeo Zero runs on CR1632 battery.
  • Battery Life: This battery has almost 10 years of life.
  • Illumination Type: LED illumination. 
  • Illumination Settings: Comes with the eight user configurable daytime brightness settings.
  • Sight Window: Sight Window dimensions are 0.72 in x 0.61 in.
  • Color: Black colored Mini red dot sight. 
  • Finish: Textured finish.
  • Material: Constructed from Ultralite Polymer material. 
  • Windage: 120 MOA windage travel.
  • Elevation: 120 MOA elevation travel.
  • Parallax: Parallax Free. 
  • Warranty: 5 years warranty and Infinite Guarantee.
Package Contents
SIG SAUER Romeo Zero Mini sight.
User Manual.
CR1632 Battery.
Lens Cleaning Cloth.

Product Description:

I love having the SIG SAUER Romeo Zero on my pistol. This ultra compact micro Red Dot Sight offers fast target acquisition with added accuracy at a reasonable price.

To me, glass clarity is one of the most important qualities when I’m choosing an optic for a firearm. This best micro red dot for pistol comes with the SpectraCoat HD Polymer Lens system that can withstand 10 times more impact and gathers more light than traditional glass.

The SIG SAUER Romeo Zero is a compact and ultra lightweight red dot sight because it is made from the Ultralite Polymer. Despite being constructed from the polymer, It is a rugged optic.

Another thing that comes from the SIG SAUER and works wonders is its MOTAC feature. The motion activated illumination system detects the motion to power up and down to save the battery.

It is equipped with the point source LED emitter that is almost 8 times more powerful than the competitors and offers you a crisp red dot to hit the target effeciently.

There are eight brightness settings that are user controllable making this micro red dot sight perfect for any type of lighting. This USA assembled sight has an amazing battery life of up to 10 years per battery. 

Pros and Cons of SIG SAUER Romeo Zero Reflex Red Dot Sight

  • Ultra compact micro red dot sight.
  • Assembled in the USA.
  • 10 years battery life.
  • MOTAC powers up and down by sensing motion.
  • SpectraCoat HD Polymer Lens system.
  • Stippling pattern housing.
  • The on off button is small.
  • Must be uninstalled to replace the battery.

AT3 Tactical ARO Budget Pistol Red Dot Sight

Budget Pistol Red Dot Sight

Specifications and Features:

  • Brand: AT3 Tactical. 
  • Model: ARO Micro Red Dot.
  • Style: Low Mount.
  • Color: Comes in Black color.
  • Power: 1x Fixed power.
  • Obj Lens: Obj lens is 23 mm.
  • Obj Lens Area: Obj lens area is 23 mm x 21 mm. 
  • Weight: This ARO Micro Red Dot weighs 1.8 oz.
  • Height: Overall height is 1.2 inches.
  • Reticle: 3 MOA crisp Red Dot. 
  • Battery Type: Uses CR1632 battery that is included in the box.
  • Battery Life: 5,000 hours on medium brightness setting. 
  • Auto shut off: 6 hours.
  • Per Click Value: 1 MOA elevation and windage per click value.
  • Adjustment Range: Total adjustment range is 100 MOA.
  • Material: Housing material is 6061 Aluminum alloy.
  • Finish: Matte black anodized finish. 
  • Nitrogen Filled: Completely Nitrogen filled.
  • Water proof: Full Waterproof performance even in wet conditions. 
  • Fogproof: Yes, Fully fogproof.
  • Mounting Length: Mounting length is 1.9 inches.
  • Mounting Width: Its Mounting width is 1.1 inches.
  • Lens Coating: Multi coated optical glass.
  • Eye Relief: Unlimited eye relief.
  • Parallax Adjustments: Fixed parallax adjustment.
  • Recoil Resistance: Can withstand upto 500g’s.
  • Warranty: Lifetime AT3 Warranty.
Package Contents
ARO Budget Pistol Red Dot Sight.
Allen Wrench.
Torx Wrench.
Lens Protective Cover.
Lens Cleaning Cloth.
CR1632 Battery.
Picatinny Mount.
Instruction Sheet.

Product Description:

AT3 Tactical ARO red dot is one of the most affordable options for entering the world of mini red dots. Despite being so cheap, it is still packed with all necessary features.

This ARO red dot is the smallest red dot sight by AT3 Tactical. Its Multi coated lenses along with a large viewing area offers excellent image clarity to hit the bullseye even in low light conditions.

Its sharp 3 MOA Red Dot reticle allows you to shoot with both eyes open. It also gives you the privilege of choosing among 6 brightness levels for optimal visibility from dawn to dusk.

This best cheap red dot pistol sight comes with the protective cover, Wrenches, screwdriver, Battery, and Low Picatinny Mount. No other red dot on the market comes with these types of accessories at this price range.

It has a top loading battery compartment for quick and easy battery changes.  Moreover, it’s simple one button operation with brightness memory makes it a user friendly micro red dot sight.

Nitrogen filled body offers waterproof and fog performance and will not let you down even in most unfavorable conditions. It also has the ability to withstand field abuse up to 500g’s.

Pros and Cons of AT3 Tactical ARO Cheap Mini Red Dot

  • Scratch resistant multi coated lenses.
  • 6 Brightness levels for various lighting situations.
  • Complete accessories included in the box.
  • Lifetime AT3 Warranty.
  • Cheap Mini Red Dot with incredible features.
  • Lack of quick connect and disconnect mechanism.
  • Red Dot is a bit dim at low brightness levels.

Trijicon RMR Type 2 Red Dot [Best Micro Red Dot for Pistol]

Best Micro Red Dot for Pistol

Features and Specifications:

  • Brand: Brand is Trijicon.
  • Model: Model is RM06-C-700672.
  • Style: No Mount style.
  • Fabric: Fabricated from high grade forged aluminum alloy.
  • Magnification Type: Magnification type is fixed.
  • Magnification: It has fixed 1x magnification power.
  • Reticle: Reticle pattern is 3.25 MOA dot.  
  • Reticle Color: This 3.25 MOA dot comes in red color.
  • Illumination Source: Its illumination source is LED.
  • Brightness Levels: Manual and auto brightness adjustment modes.
  • Length: This RMR Type 2 micro red dot is 1.8 inches long.
  • Width: It is 1.1 inches wide.
  • Height: Overall height of this RMR sight is 1 inch.
  • Weight: weight is only 1.2 oz.
  • Adjustments: Adjustment value is 1 MOA per click.
  • Adjustment Range: Total travel adjustment range for windage and elevation is 150 MOA.
  • Sight Window: Its sight window dimensions are 0.87 x 0.63 inches.
  • Power Source: Powered by 1 CR2032 Lithium Battery.
  • Battery Life: At setting 4, battery life is up to 4 years per battery.  
  • Finish: Matte Black colored finish.
  • BDC: No Bullet drop compensation feature.
  • BAC: No Bindon aiming concept feature.
  • Warranty: Backed by the Trijicon Limited Lifetime Warranty.
Package Contents
Trijicon RMR Type 2 Micro Red Dot.
CR2032 Battery.
2 RMR Screws.
Trijicon Sticker.
Hex Wrench.
Trijicon Warranty Card.

Product Description:

This Trijicon RMR Micro Red Dot is one of the all time favorites all over the world because of its best performance. Trijicon built this sight for ultimate performance even in the most unfavorable conditions.

It is loaded with an array of innovative features like dual illuminated options. In a low light environment, it uses a Tritium phosphor lamp to illuminate the reticle whereas for automatically adjusting the brightness, it is equipped with the fiber optics.

The guys at Trijicon take accuracy seriously as the sight comes with the true color multi coated lens. This high quality glass delivers wide band light transmission to provide a clean and clear image of the target area.

Trijicon has packed this micro sight into a forged aluminum housing that’s just 1.8 inches long and weighs only 1.2 ounces. Its patented body shape diverts the impact away from the glass to save it from the abuse.

Another great reason to get your hands on this best micro red dot for pistol is its adjustable LED RMR. You can toggle between the auto and manual modes to adjust the brightness. Its manual mode has eight brightness levels including two night vision levels and one super bright for low light environments.

You don’t need any tool for adjusting the windage and elevation. Its audible windage and elevation adjustment are finger reachable and comes with 1 MOA per click setting.

This micro red dot sight runs on a CR2032 battery that is included in the package. If you use the brightness level at setting 4 then battery life can be up to 4 years. One con of its design is that you need to remove the optic from the pistol to change the battery.

Pros and Cons of Trijicon RMR Type 2 Micro Red Dot For Pistol

  • Easily adjustable windage and elevation without tools.
  • Made in the USA.
  • Battery Conservation Mode adjusts the dot automatically.
  • Clear Glass and crisp red dot.
  • User friendly and long battery life.
  • Manual and auto brightness modes.
  • Battery Changing requires removing the optic.
  • Price, but worth it.

Leupold DeltaPoint Pro Micro Red Dot For 22lr Pistol

Micro Red Dot For 22lr Pistol

Features and Specifications:

  • Brand: Leupold.
  • Model: Model # is 175840.
  • Finish: Dark Earth colored finish.
  • Reticle Type: Comes with Illuminated reticle. 
  • Reticle: 3.25 MOA illuminated reticle.
  • Focal Plane: Second/Rear focal plane.
  • Magnification Type: Fixed Magnification.
  • Magnification Power: 1x fixed magnification power.
  • Adjustment Type: Coin click adjustment type.
  • Elevation Adjustment: Elevation adjustment is 60 MOA.
  • Windage Adjustment: Windage adjustment range is also 60 MOA.
  • Adjustment Value: 1 MOA per click.
  • Battery: Battery type is CR2032.
  • Battery Life: Battery life ranges from 300 hours to 1600 hours.
  • Illumination Type: Illumination type is LED.
  • Illumination Settings: 8 illumination level settings.
  • Weight: Weight is 1.9 oz.
  • Length: 1.8 inches long.
  • Width: Width is 1.31 inches.
  • Height: Height is also 1.3 inches.
  • Material: Fabrication material is Aluminum.
  • Window Size: Dimensions of the window are 25.7 x 17.5 mm.
  • Operating Temperature: Ranges from -20 to 120 Fahrenheit.
  • Water Resistance Level: Waterproof red dot sight.
  • Resistant Mark: Up to 33 feet.
  • Storage Temperature: It is from -40 to 160 Fahrenheit.
  • Warranty: Comes with Leupold Lifetime Guarantee.
Package Contents
Leupold DeltaPoint Pro Micro Red Dot.
1 CR2032 Battery.
Lens Protective Cover.
Cleaning Cloth.
User Instructions.

Product Description:

Leupold DeltaPoint Pro is one of the best selling micro red dot for pistol on today’s market. It comes with so many features that you would love to have for unrivaled performance.

There are few very good reasons why we decided to put Leupold DeltaPoint Pro on our list of 5  best micro red dot for pistol. First of all, it has solid construction with an astonishing design. DeltaPoint Pro is an ideal candidate for years of hard use.

Secondly, It carries a 2.5 MOA illuminated red dot reticle that is positioned in the rear focal plane for precise shot placement. This reticle delivers a definitive aiming point and wide field of view for rapid target acquisition to hit the target.

Thirdly, the motion sensor technology (MST) of the Leupold extends the battery life. When it detects the 5 minute of inactivity, it turns off the illumination and turns it on soon after sensing any movement.

At high intensity brightness setting, the CR2030 battery life is 300 hours, at medium intensity, it is 1000 hours whereas at the lowest brightness level, battery life is up to 1600 hours. Moreover, it comes with the easy access battery compartment, you can change the battery without removing the sight from the pistol. 

Fourthly, the professional grade optical system of this mini red dot sight not only reduces the glare but also increases the light transmission to provide a clear and high resolution image of the target.

Lastly, Leupold made the DeltaPoint Pro in the USA, so you don’t need to be worried about the quality of the sight. Furthermore, it is backed by the Leupold lifetime guarantee.  

Pros and Cons of Leupold DeltaPoint Pro [Best Selling Micro Red Dot for Pistol]

  • Professional grade red dot optical system.
  • Made in the USA.
  • Rapid, accurate aim and excellent shot placement.
  • Lightweight, rugged, and durable.
  • Easy Battery Access for battery change.
  • Motion Sensor Technology (MST) feature.
  • Easy to mount and user friendly operations.
  • A little pricey.
  • Single Push Button.


We hope that after reading this guide, now you are able to find the best micro red dot for pistol.

Best Micro Red Dot For PistolBest For
Holosun HS507K-X2Affordable
SIG SAUER Romeo ZeroLightweight and Ultra Compact
AT3 Tactical AROBudget Micro Red Dot
Trijicon RMR RM06-C-700672Overall Best
Leupold DeltaPoint ProBest Selling Micro Red Dot


What is the smallest red dot for a pistol?

We have taken out our time to compile a list of smallest red dots for pistols in 2021. Have a look at the list.

  • Holosun HS507K-X2.
  • SIG SAUER Romeo Zero
  • AT3 Tactical ARO
  • Trijicon RMR RM06-C-700672
  • Leupold DeltaPoint Pro

What is the best red dot scope for a pistol?

Here is the list Best red dot scopes for pistols in 2021.

  • Trijicon RMR Type 2.
  • Leupold DeltaPoint Pro
  • SIG SAUER Romeo Zero
  • Holosun HS507K-X2
  • AT3 Tactical ARO

Are pistol red dots worth it?

Red dot sight on pistol not only increases the accuracy by providing you a clear and crisp target image but also makes you able to hit the moving targets easily. So, Buying a red dot for your pistol will be the best investment.

What is mini red dot?

Usually red dot sight comes with a length of 5 inches or more. Any red dot sight that has less than 5 inches length is called mini red dot.

Written by John

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