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Best Red Dot For Ruger AR 556

A Comprehensive Guide

The Ruger 556 has been a popular rifle for years, and it’s no wonder why. However, some drawbacks come with the gun as well. One of them is low-quality red dot sights preinstalled on the weapon. A best Red Dot for Ruger AR-556 solves this problem by adding Red Dot that’s easy to zero and provides fast target acquisition in all lighting conditions regardless of your vision limitations.

Aimpoint Micro H-2 Red Dot Reflex Sight with Standard Mount - 2 MOA - 200185

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Last update was on: Sep 28, 2022 10:40:11 PM

Finding the right miniature rifle optic for your favorite hunting or shooting weapon can be frustrating. There are so many options that you’re bound to get overwhelmed and make mistakes along the way.

Table of Contents

If you are in a hurry to purchase the best red dot for Ruger AR 556, and you want to make the best decision, here are our top 3 picks:

Top 3 Best Red Dot For Ruger AR 556

This article will give an overview of some of the top-rated red dot sights on the market today so that you can easily compare them against each other and pick out one that fits your budget and requirements perfectly.

7 Best Red Dot For Ruger AR 556 (Ranked And Reviewed)

1. Aimpoint Micro H-2 Red Dot Reflex Sight

Aimpoint Micro H-2 Red Dot Reflex Sight
$761 $0
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
6 new from $761
$783.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$828.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $

Specifications

The Aimpoint® Micro H-2 sight is a high-performance red dot sight that offers the features of superior optical quality, ruggedness, and reliability with extreme ease of use, making it ideal for close-quarter combat situations. The new Micro H-2 is built to withstand even more severe conditions than its predecessor. This drop zone reticle pattern provides 2 MOA dot size for fast target acquisition. The 12 brightness range settings allow you to customize the brightness to best match your environment. Micro H-2 Red Dot is like a revolutionary holographic sight for competition shooters who want to take their performance to the next level.

 

The Aimpoint Micro H-2 is a 6x optic designed and built with uncompromising principles as all other Aimpoint products. The robust and ultra-compact design of the Aimpoint Micro allows it to be used in a wide variety of roles with different mounting options. It can be mounted on a handgun, shotgun, or rifle and any MIL-STD 1913 Picatinny rail. Which makes it ideal for use on virtually any type of weapon platform. The Aimpoint Micro uses a single standard battery that powers it up to 50000 hours.

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2. Trijicon MRO-C-2200030 Miniature Rifle Optic

Trijicon MRO-C-2200030 Miniature Rifle Optic
$459.99 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$498.74 $0
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
15 new from $498.74

Specifications

The Trijicon MRO™ (Miniature Rifle Optic) is a sealed miniature reflex sight on rifles, carbines, and shotguns to provide fast target acquisition. The large aperture and tapered light path maximize the viewing area in such a compact size duty grade optic, allowing immediate target engagement – especially from non-standard shooting positions. A vital feature of the MRO is its ability to be used as a handheld magnifier via optional mounting brackets. It provides the capability to extend your effective magnification range while shooting.

 

The large aperture provides a vast field of view that makes it easy to locate targets without shifting your eyes from the front sight post. Dual-color illumination (Fiber optics provide daylight illumination, and tritium illuminates circle reticle at night) allows you to use either or both colors depending on the lighting conditions. Combine all this with the ambidextrous brightness controls, sub-flush adjusters, advanced lens coatings, and the fully sealed, waterproof housing, and you have the ultimate glass etched reticle patterns.

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3. Vortex Optics Crossfire Red Dot Sight

Vortex Optics Crossfire Red Dot Sight
$135.58 $0
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
47 new from $133.99
$149.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$149.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$149.99 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $

Specifications

The Vortex Optics Crossfire Red Dot Sight is the perfect sight for your AR-556. The lightweight, compact design makes it easy to mount on any rifle with a cantilever mount, and the 2 MOA dot will help you take down targets quickly. This red dot has 11 brightness range settings, so you can easily find the one that works best for you, whether you’re shooting early or late in the day. The lower 1/3 absolute co-witness mount allows you to use iron sights still if necessary. The Crossfire Red Dot Sight is a rugged and straightforward sight that delivers a crisp dot for fast target acquisition. It features our trademarked ACET technology, which provides 50,000 hours of continuous use on extended battery life.

 

The sight automatically turns on when it senses motion and turns off after two minutes to prevent accidental battery drain. Vortex Crossfire Red Dot Sight is the perfect sight for competitive shooters who want AR 15 red dot sight at an affordable price. The 2 MOA dot diameter promotes rapid target acquisition while providing enough light to keep your view clear and sharp at moderate ranges. The unlimited eye-relief allows you to use this product with or without glasses. This optic is waterproof, fog-proof, and shockproof for ultimate durability.

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4. Bushnell Trophy TRS-25 AR

Bushnell Trophy TRS-25 AR 2
$79.99 $0
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
8 new from $79.99
$109.99 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$109.99 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $

Specifications

The Bushnell Trophy TRS-25 is a compact, lightweight, and versatile Red Dot sight with 11 brightness settings to match any environment. The 3 MOA red dot provides incredible accuracy at moderate ranges or long-distance shooting. TRS-25 AR is a red dot sight that is built for speed. The quick detach lever allows you to easily switch between your favorite rifles without removing the sight from the absolute co-witness mount. It’s compatible with Picatinny rails and can be used on pistols, shotguns, rifles, and muzzleloaders.

 

The Bushnell AR optics are specially designed rifle scopes with a 25mm objective lens and an extended eye relief design that makes it easy to use with both eyes open. It has a 1x magnification, allowing you to make precise shot at an effective range without needing a magnified quality optic. It is a rugged, reliable, and budget scope that will keep you on target. This prism scope features a shockproof construction with nitrogen-purged fog proofing to withstand bumps, bangs, drops, and the rough and tumble environment of the field.

Bushnell Trophy TRS-25 AR

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5. SIG Sauer SOR52001 Romeo5

Sig Sauer SOR52001 Romeo55
$124.96 $0
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
32 new from $124.96
$129.99 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$139.99 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $

Specifications

The all-new SIG Sauer Romeo5 Red Dot is the most technologically advanced sight on the market today. It features an integrated red dot optic and reflex sight; this lightweight optic offers a 2 MOA aiming point for fast target acquisition. The ten illumination settings range days from daylight bright to low light and night vision compatible. This model also features Motion Activated Illumination (MOTAC), which powers up when it senses motion and powers down when it does not.

 

The M1913 Picatinny interface lets users mount the Romeo5 rifle scope on any platform or accessory that accepts this affordable scope. SIG Sauer’s proprietary Motion-Activated Illumination automatically adjusts the brightness level as ambient light conditions change. SIG Sauer’s Romeo5 is a red-dot sight that provides the experienced shooter with fast target acquisition, increased field of vision for a wide range, and excellent battery life.

Sig Sauer SOR52001 Romeo5

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6. Rhino Red/Green Dot Reflex Sight

Rhino Red Green Dot Reflex Sight
$37.99 $39.95
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
1 new from $37.99

Specifications

The Rhino Reflex Sight is an excellent sight for the money. It’s lightweight, compact, and straightforward to use. You can adjust the red or green dot for brightness, and it has adjustable windage and elevation. This site is perfect for beginners who want to get into wide-range shooting but don’t want to pay much money. Rhino Reflex Sight is a tactical reflex red dot sight. The lens allows you to see the world around you, while the red and green reticles provide quick target acquisition and pinpoint accuracy for followup shots.

 

It can be mounted on any weapon system or used as a handheld device. The Rhino Reflex Sight is built for rugged outdoor use to withstand harsh environments. It’s waterproof, fog-proof, and shockproof. Now you won’t have to worry about seeing your target because these holo sights give you a clear line of sight. The multicoated optics provide exceptional brightness in any weather condition, so you’ll always be able to see your target clearly no matter where your marks are or what time it is.

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Negatives

7. Burris 300234 Fastfire III

Burris 300234 Fastfire III
$223.68 $0
28 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
30 new from $219
$229.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$229.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $
$229.00 $0
23 09 2022
× Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com (Amazon.in, Amazon.co.uk, Amazon.de, etc) at the time of purchase will apply to the purchase of this product.
new from $

Specifications

The FastFire III is a lightweight, low profile, small diameter red dot sight with an ultra-fast lock time. It features the same zero-resettable windage and elevation adjustments that has become a FastFire trademark. The new Fastfire III also offers different dot reticle patterns to choose from, including the famous Duplex. It is the next generation of red dot sighting technology. The FastFire III is ideal for use on an AR-556 or any other platform requiring a 3 or 8 MOA dot sight. It also features automatic brightness adjustment allowing you to quickly adapt from bright sunlight to low light conditions without adjusting any knobs. The FastFire III is the quickest and easiest way to mount a red dot sight on your pistol. The FastFire III provides secure mounting that is strong and repeatable, returning to zero after disassembly and re-installation.

Burris 300234 Fastfire III 1

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FAQs

Important Note:

Any activity using a firearm has the potential to be harmful and can lead to death, serious injury, permanent disability, or property damage. Only general educational and informational purposes are served by the advice, graphics, photographs, videos, and information found on Ballachy firearm reviews. The knowledge provided about guns, gun handling, tactics, training, legal issues, and marksmanship skills on this page is the author’s opinion based on his experience and education. This knowledge, which includes advice and training methods, is applicable only in a given set of conditions that the reader cannot precisely recreate. The author disclaims any liability for improper use or incorrect interpretation of the information on this website. Use of this website as a replacement for training or any information found on this website is not legal advice of any kind.

To mount a red dot sight on your Ruger AR-556, you’re going to need two tools, an Allen wrench, and a screwdriver. The first thing you want to do is remove the front sight post by loosening the set screws with your Allen wrench. Now you can slide off the rear site leaf spring assembly and then reattach it after mounting your scope onto its base plate. Then use your screwdriver and loosen the set screws holding down the rear sight leaf spring assembly (which will allow it to move up). Finally, tighten all of those screws back down using both wrenches – easy peasy.

Important Note:

Any activity using a firearm has the potential to be harmful and can lead to death, serious injury, permanent disability, or property damage. Only general educational and informational purposes are served by the advice, graphics, photographs, videos, and information found on Ballachy firearm reviews. The knowledge provided about guns, gun handling, tactics, training, legal issues, and marksmanship skills on this page is the author’s opinion based on his experience and education. This knowledge, which includes advice and training methods, is applicable only in a given set of conditions that the reader cannot precisely recreate. The author disclaims any liability for improper use or incorrect interpretation of the information on this website. Use of this website as a replacement for training or any information found on this website is not legal advice of any kind.

The benefits of a red dot sight are many. You can easily see your target and shoot quickly and accurately with this type of sight. You don’t have to worry about lining up the sights on your gun with the target. All you need to do is line up the red dot with your desired target, pull the trigger, and hit it. 

Conclusion

The AR 556 red dot sights we’ve discussed today are all top of the line and have a lot to offer. In making your decision, you will want to consider what features matter most for your needs. For example, if accuracy is critical or weight matters more than size, our first two options might not suit you. If budget is a limiting factor, there may be some other considerations before coming up with the excellent scope purchase! We hope this review has helped you find the best Red Dot for Ruger AR 556 that meets your specific needs- happy hunting.

Our Research Process

Our curated list of products has been provided to you by our experienced team of researchers and writers at Ballachy who have tested and scrutinized product recommendations on the market. Our experience in the field, in-depth research and hands-on approach has allowed us to objectively analyse products for years and continuously providing value for buyers who are looking to get accurate and unbiased reviews. If you would like to know more about our research methods, we welcome you to visit our page here detailing how our recommendations are done. Furthermore, as we are always looking keep our guides updated and welcome any feedback from readers regarding different experiences or recommendations to adjust our list. If you consider that we have missed on some important recommendations, please let us know here, so we can add-on any valuable feedback.

Author Profile

Gabriel TackettGabriel Tackett
Gabriel Tackett is an experienced shooter and hunter for over 15 years with a degree in Engineering from the University of Minnesota. He is also a certified National Rifle Association (NRA) officer for 10 years And his passion lies in teaching others how to safely enjoy the hobby by recommending the best practices & products in the gun industry.