7 Best Red Dot Sight for Ruger SR40

Are you looking for the best red dot sight for Ruger SR40? If yes, you have come to the right place. The Ruger SR40 is a formidable companion for self-defense and pairing it with a worthy red dot sight is vital to hone your shooting skills and enhance your overall shooting experience.

When it comes to finding the right red dot sight for the Ruger SR40, there are several factors that you should take into account, including durability, ease of use, and performance. With the right model, you will enhance your shooting confidence, boost your speed of target acquisition, and make every shooting expedition a success. What’s more, red dot sights are integral tools for increasing your situational awareness as they enable shooting with both eyes open.

We have done our homework and put together a list of the best-performing red dot sights for Ruger SR40 that stand out in terms of features and reliability. Equipped with modern features and advanced technologies, these optics will help you elevate the capabilities of your favorite pistol and make you a better shooter. We have also attached a buying guide with all the information you need to make the right purchase.

So, without any further delays, let’s jump right in.

Best Red Dot Sights for Ruger SR40

1) Aimpoint ACRO P-2 Red Dot Reflex Sight – Best Overall

best red dot sight for Ruger SR40



Aimpoint ACRO P-2 Red Dot Reflex Sight is hands down the best red dot sight for Ruger SR40. It is a compact sight that is optimized for all pistol applications that require a low-profile and rugged red dot system.

The selling point of this red dot sight is its solid construction. It has a fully enclosed housing that protects all the electronic components from dust, dirt, and other elements. Moreover, the chassis is crafted from 7075-T6 high-quality aluminum for ultimate strength and durability.

To complement the rock-solid and reliable construction, the red dot sight is waterproof and submersible to 115ft/35m. As a result, it is operable in extreme temperatures and in all weather conditions.

Other than that, it weighs a mere 60g/2.1oz so it won’t affect the balance of your pistol by adding unnecessary weight to it. It also boasts a crisp 3.5 MOA red dot reticle for accurate and rapid target acquisition.


  • 10 brightness settings
  • Waterproof and submersible to submersible to 115ft/35m
  • Multi-coated optics
  • LED illumination
  • Unlimited eye relief
  • 5 MOA red dot reticle
  • Fully enclosed housing
  • Parallax-free optic
  • Enclosed emitter


  • Lightweight
  • Durable and reliable construction
  • Excellent optical clarity
  • Compact, low-profile design


  • High cost

2) Ade Advanced Optics RD3-012-Pro Series Red Dot Sight – Best Budget

best red dot sight for Ruger SR40



The Ade Advanced Optics RD3-012-Pro Series Red Dot Sight is your ideal option if you are on a tight budget. Even though it comes at a reasonably affordable price, it doesn’t compromise quality. It is built with a ton of user-friendly features to help you get the most out of your shooting.

This versatile optic features a multi-reticle system suitable for a variety of shooting applications. The reticle has red LED illumination and motion activation technology that lights it up whenever it senses motion. Moreover, the brightness of the reticle can be tailored to different illumination settings for precision aiming in all light conditions.

Regarding construction, it is built from 6061 aircraft aluminum and anodized against rust and scratches. The interior is fully waterproof and dustproof for added protection from the elements. Besides that, this red dot sight comes with a top load system so you can remove and change the battery while it is still mounted on the pistol.


  • Multi-reticle system
  • Red illumination
  • Unlimited eye relief
  • 2 MOA adjustment click value
  • Anodized finish
  • Open emitter
  • 6061-T6 aircraft aluminum housing
  • Motion-activated system


  • Hold zero well
  • Inexpensive
  • Easy setup
  • Clear picture


  • Poor battery life in the cold

3) Vortex Venom 1×26.5mm Red Dot Sight – Best Versatile

Vortex Venom 3 MOA



When it comes to versatility and value, it is hard to beat the Vortex Venom 1×26.5mm Red Dot Sight. It can work with a handgun, shotgun, or rifle and be used for a ton of shooting applications from self-defense to general range use.

This optic is made with user convenience in mind. It features easy-to-use power and illumination controls on the left that allow shooters to make adjustments on the fly without changing their sighting position.

Moreover, the sight is built to last. It has an aluminum alloy chassis that is ultra-light but durable. On top of that, the red dot sight is fully waterproof, submersible to 1m, and usable in temperatures as extreme as 22℉ to 122℉.

Regarding use and handling, Vortex Venom 1×26.5mm red dot sights feature unlimited eye relief for rapid target acquisition and parallax-free optics to ensure precision aiming. They also bring to the table fully multi-coated optics that work together with the premium wide-field lenses to provide a clear, unobstructed field of view.


  • 10 levels of brightness
  • Non-critical eye relief
  • Armortek lens finish
  • 100 total windage and elevation adjustment
  • Fully multi-coated optics
  • Parallax-free optical configuration
  • Aluminum alloy chassis
  • LED illumination
  • 6 MOA red dot reticle
  • Premium wide-field lens


  • Compact and lightweight
  • Night vision-compatible settings
  • Clear sight picture
  • Multi-platform friendly


  • Poor battery life

4) Burris FastFire III Red Dot Sight – Best for Beginners

Burris FastFire 3



The Burris Fastfire III Red Dot Sight is the best red dot sight for Ruger SR40 for beginners. It is compact, lightweight, and easy to use. Besides, it is versatile and ideal for use in virtually all environments.

This red dot sight has a crisp 3 MOA reticle which provides the best balance between speed and precision. It is easy to acquire and hardly obstructs the small targets. Furthermore, the sight employs an automatic brightness sensor that adjusts the illumination relative to the ambient light conditions.

Another impressive facet of this optic is the battery access. It is conveniently located at the top for easy change of the battery while the sight is still attached to the firearm. Other than that, there is an automatic time-out system that shuts down the sight after 8 hours to help conserve the battery.

In addition to all these features, the Burris FastFire III Red Dot sight has a robust aluminum construction and it is fully waterproof, water-resistant, and usable in temperatures ranging from -10℉ to 130℉.


  •  Automatic brightness sensor
  • 3 MOA red dot reticle
  • Top battery access
  • 115 MOA adjustment range
  • Infinite eye relief
  • LED illumination
  • Three brightness settings
  • Aluminum alloy chassis
  • 1 MOA adjustment click value


  • Ultra-compact and lightweight
  • Battery included
  • Solid construction
  • Clear lens


  • Battery replacement is difficult

5) Leupold Delta Point Pro Red Dot Sight – Best Value

Leupold Delta Point Pro



Leupold is a renowned optics brand. It has a reputation for making high-quality and reliable optics and the Delta Point Pro Red Dot Sight is not any different.

This red dot sight is designed and built with avid shooters in mind, to enhance their shooting performance. It brings to the table a crisp 2.5 MOA reticle for precision aiming in all environments. Moreover, you can tailor its illumination into 8 different settings to match various target backgrounds.

Regarding construction, the sight is well-built with high-quality aluminum to withstand rough handling, recoil, and any other abuse. What’s more, it is designed and built with a tool-less spring-actuated battery compartment that provides an industry-leading 66 feet of waterproofness.

To complement the outstanding construction quality, this optic features a 60 MOA adjustment range for both windage and elevation. Over and above that, it boasts a Diamond Coat optical coating that is responsible for fighting glare and enhancing light transfer.


  • Non-reflective matte finish
  • 5 MOA red dot reticle
  • 1 MOA adjustment click value
  • Unlimited eye relief
  • Motion sensor technology
  • Shrugged in rugged spring steel
  • Open emitter
  • Eight brightness settings
  • Waterproof and submersible to 66ft
  • Diamond Coat optical coating
  • Aluminum housing


  • Lightweight design
  • Sturdy and reliable construction
  • Ease of installation
  • Bright and crisp reticle


  • Poor battery life

6) Holosun HS407C-X2 1x2MOA Red Dot Sight – Best Compact

Holosun HS407C-X2 1x2MOA



Here is another compact and lightweight red dot sight ideal for concealed carry. It is an open-reflex red dot weapon sight perfect for decreasing target reacquisition time and boosting your shooting precision.

A defining feature of this red dot sight is its accuracy. It is outfitted with a crisp 2 MOA red dot reticle which is accurate and easy to spot. Besides, there are 12 illumination intensities for the reticle to ensure confident aiming in all lighting conditions.

The unlimited eye relief and parallax-free optical design help the reticle serve its purpose by maximizing glassing comfort. Other than that, the sight features Solar Failsafe which provides power when batteries fail, and Shake Awake motion technology that activates the device only when it senses motion.

What’s more, you can use this optic in all weather conditions as it is fully waterproof, dustproof, and fog-proof. On top of that, it is operable in temperatures ranging from -30 to 60°C.


  • Parallax-free optical configuration
  • Anodized finish
  • Aluminum construction
  • 1 MOA adjustment click value
  • RMR mount type
  • Unlimited eye relief
  • 12 adjustable brightness settings
  • Shake Awake technology
  • Multi-layer reflective glass
  • IP67 water resistance level


  • Long battery life
  • Compatible with night vision gear
  • Back-up solar power
  • Bright and extremely clear reticle
  • Light but solid construction


  • Mount not included

7) Vortex Viper Red Dot Sight – Honorary Mention

vortex viper



The Vortex Viper 1x24mm 6 MOA Red Dot Sight is our last recommendation of the best red dot for Ruger SR40. This red dot sight employs a large 6 MOA reticle that is easy to pick and simple to shoot with.

With the large reticle design, the sight is suitable for all shooters from beginners to seniors to veterans. The fully multi-coated optics help the reticle serve its purpose by eliminating glare and boosting light transmission. On top of that, you can tailor the reticle to match your shooting preferences and needs using the 10 adjustable brightness settings.

The construction quality of this optic is also impressive. It has a single-piece aluminum alloy chassis that is shockproof and anodized against rust and scratches. Furthermore, the interior is fully waterproof and dustproof for use in all kinds of weather conditions.

Well, that’s not all. This red dot sight has easy-to-use power and illumination controls placed on the left side. As such, you can make adjustments easily on the fly without changing your sighting position.


  • Waterproof and shockproof
  • Single-piece chassis
  • Aluminum alloy construction
  • Parallax-free optical configuration
  • Fully multi-coated optics
  • LED illumination
  • Open emitter
  • Unlimited eye relief
  • 6 MOA red dot reticle
  • Hard anodized finish


  • Compact and lightweight
  • Easy installation process
  • Excellent adjustments
  • Inexpensive


  • Battery life

Read Also

What is the Best Reticle Size for a Ruger SR40 Red Dot Sight?

When shopping for a Ruger SR40 red dot sight, you should settle for a model that blends with your specific shooting needs and preferences. It is also vital to pick a model whose reticle matches the kind of shooting you will be doing.

A small 2 MOA or 3 MOA reticle is perfect for increasing your speed of target acquisition. Such reticles offer the ultimate balance of speed and accuracy, making them an ideal choice for applications where precision shooting is vital.

On the other hand, you will need a large reticle of above 4 MOA if you are a beginner. Such reticles are easy to find and acquire. If you are a senior, we recommend larger reticles of 6 MOA or 8 MOA.

Things to Consider when Buying a Red Dot Sight

Investing in the best red dot sight for Ruger SR40 is not something you do in a hurry. Consider the following factors before you decide to settle on any particular product.


This is the first thing to consider. There are a ton of red dot sights available on the market however not all are compatible with Ruger SR40. So, ensure that you settle for a product that is compatible with the mounting system of your pistol.


Pistol sights increase accuracy for virtually every shooter out there. However, how accurate a red dot sight is varies from one product to the other. Irrespective of the kind of shooting you will be doing, opt for the most accurate and reliable sight you can afford.


You will want a red dot sight that is optimized for durability. The best red dot sight for Ruger SR40 should feature a robust construction from hard-wearing materials like aircraft-quality aluminum. With the solid construction, the optic will withstand abuse and last long.

Optical Clarity

It is also important that you pay attention to the optical clarity of the red dot sight. A model with high-quality anti-reflective lens coating is preferred. On top of that, pick a model that employs high-grade optics for durability.

Brightness Settings

In red dot sights, one can tailor the brightness of the reticle to match their preferences and shooting needs. So, the more brightness settings a model comes with the better. It is also wise to pick a product whose lowest brightness settings are compatible with night vision gear for optimal performance.


  • Which red dot sight is best for a Ruger SR40 pistol?,

The best red dot sight for your Ruger SR40 is one that fits your shooting needs and budget. It should be of the highest quality you can afford. On top of that, it needs to be easy to use and well-built to endure the harsh recoil the pistol scatters.

  • Are red dots on pistols worth it?

Absolutely. Red dot sights on pistols increase accuracy in nearly all shooting environments. They are reliable and easy to use and immediately you add a worthy model on your pistol, you will become a better shooter.

  • Can I use a red dot sight at night?

Yes. The red reticle in red dot sights is visible and easy to aim with even at night. If you like to shoot at night, opt for a model whose lowest brightness settings are compatible with night vision gear.

Final Words

Hopefully, this article has been insightful and of great help to you. When choosing the best red dot sight for Ruger SR40, personal preference and individual shooting needs will dictate the model that you settle for. Look at the attributes and features that make each red dot sight the right purchase and choose accordingly.