Top 10 Best AR-15 Scopes – Reviews And Buying Guide

So, you have finally purchased the AR-15 of your dreams. Now what? You need to compliment your AR-15 with the best rifle scope possible. It can be tricky to navigate the market since there are numerous AR-15 scopes available. Most of them may have close and identical features. How can you tell that the AR-15 scope is worth a second and third look?

Today, we point you in the exact direction of the best AR-15 scopes.

Related Buyer’s Guide:

Best Ar-15 Scope (Quick comparison)

Reviews of the Best Ar-15 Scopes 

ATN X Sight 4K Smart Day/Night Rifle Scope

Best Ar-15 Scopes 1 ATN X Sight 4k Smart DayNight Rifle Scope

The connected device will work on the Internet of things to deliver enhanced functionality. Additionally, the four dual core processor brings you cutting edge technology with higher resolution. Also, the ballistic calculator ensures that you hunt responsibly. It makes sure that your shot hits the target each and every time at any range.

Furthermore, you can stream videos to your mobile device at HD resolution. From there, you can simultaneously record to the SD card inside. With ultra-low power profile, you don’t have to worry about your batteries dying in the field. These batteries can sustain 18 hours of continuous operation.

Away from that, the recoil activated video will take care of all your worries. All that is required on your side is to relax and focus on your game as you let the Obsidian core do the heavy lifting. From its features, it is a giant step forward for night vision riflescopes. It was designed with increased eye relief to help you see the entire image without distortion or loss of resolution.


  • Ultra HD sensor.
  • Dual stream video recording.


  • It consumes battery faster with the night vision.

Vortex Optics Strike Eagle Second Riflescopes

Best Ar-15 Scopes 2 Vortex Optics Strike Eagle Second Focal Plane Riflescopes

This rifle scope is defined by speed and versatility. You will have the right AR-15 scope if you are among those people who prefer something without costing more than $500. It is by no doubt a compelling option. Additionally, this product adapts to a wide range of scenarios. With this AR-15 scope, you will be able to engage targets from point blank to extended ranges.

The manufacturer has updated the magnification ring. It now includes a thread in throw level and several magnification indicators. These magnification indicators can be seen without coming off the scope. Unlike in other AR-15 scope, the new illuminated reticle focuses your eye to the target faster. The holdovers are very helpful in this case since they allow immediate use out to 650 yards.

The main use of the fast focus dial on the eyepiece is to allow quick and easy reticle focusing. On the other hand, the function of anti-reflective coatings on all air to glass surfaces is to provide increased light transmission. This is for greater clarity and low light performance.

The reputable scopes maker could not forget to include the nitrogen purged and O-rings sealed. These features are for water and fog-proof performance. Last but not least, the aircraft grade aluminum tube is shockproof and can resist other impacts.


  • Quality build.
  • Magnification adjustment ring.


  • It is an expensive product.

UTG 3-9*32 1 Bugbuster Scope AO RGB Mil Dot

Best Ar-15 Scopes 3 UTG 3-9X32 1 BugBuster Scope, AO, RGB Mil-dot, QD Rings

Manufactured of high quality materials, this AR-15 scope offers a great amount of durability. The best thing about this AR-15 scope is that it is fog proof, waterproof and shockproof. It is designed to be great for any level of shooter. Additionally, you will have an easy time mounting this AR-15 to virtually any rifle. There is no doubt it will provide you with a great amount of usability.

Furthermore, the lens in this AR-15 scope is emerald coated. It offers high visibility in low light shooting conditions. How does the emerald lens coating works? They duplicate the little available light there in the environment. They focuses the light onto the shooter field of view. You can also customize the scope in the field.

The one click MOA is uniquely made for quickly sighting in the rifle in the field. However, the mounting of this AR-15 scope can be a bit detailed. After mounting the scope, you will be required to sight to the rifle. Although small adjustments can be made in the field, most of these adjustments have to be made at the range.


  • Multi emerald coated lenses.
  • Shockproof and rain proof.


  • Limited eye relief.

Nikon P Tactical .223 3-9*40 Matte BDC600

Best Ar-15 Scopes 4 Nikon P-Tactical .223 3-9x40 Matte BDC600

This AR-15 scope is worth every penny. Additionally, the BDC 600 reticle will provide you with unique open circle aiming points and hash marks. Also, it provides you with all the features you need to maximize your hunting experience. This will be achieved regardless of the platform you mount this AR-15 scope in.

The fully multi coated optical systems are rugged. Furthermore, the tubes are manufactured with aircraft grade aluminum main tubes. They will brighten even in the most dismal environments. Moreover, the versatile scope provides the field of view at the low end and the details at the high end. This enables it to satisfy most shooting demands. Another notable thing in this AR-15 scope is that the reticles are perfectly matched.

All the reticles will offer exact adjustment when used in Ballistic technology. Last but not least, it features the highly regarded aluminum ring. O-rings featured in this scope will prevent moisture from entering the body. Finally, the nitrogen purged is for total reliability against thermal shock.


  • Waterproof.
  • Quick focus eyepiece.


  • Reticle is hard to see.

Bushnell Trophy TRS 25 Red Sight Riflescope

Best Ar-15 Scopes 5 Bushnell Trophy TRS-25 Red Dot Sight Riflescope, 1x25mm, Black - Copy

The highly regarded AR-15 scope features a 3 MOA Dot reticle with multiple brightness settings. Additionally, it is easy to mount on most rails and it is compatible with rifles. The most notable thing about this product is waterproof construction. The O-rings sealed optics will stay dry inside even when immersed in water.

This AR-15 scope is manufactured to withstand bumps, drops and tumble environment of the field. It joins other top league AR-15 scopes that are nitrogen purged. The nitrogen purged features ensure that the interior optical surfaces won’t fog due to humidity.

It is quite an easy task to adjust the red dot brightness on the TRS 25 using the easy to use adjustment dial. This means that you can tune your brightness to your liking for any situation. This AR-15 scope can be used for a wide range of activities. You can use it at the range, shooting competition or even chasing long beards. You will get the job done with optimal performance when you consider purchasing this AR-15 scope.


  • Extended battery life.
  • Multi coated lenses.


  • The dot is not centered in the inner tube.

Bushnell Banner Dusk And Dawn Reticle Riflescope

Best Ar-15 Scopes 6 Bushnell Banner Dusk & Dawn Multi-X Reticle Riflescope with 3.3-Inch Eye Relief, 3-9X 40mm

This product boasts of high quality optics with stunning HD clarity. Additionally, it is manufactured with 100 percentage quality materials used and tested extensively. Also, it is beautifully designed and the durability will last.

You will not find many Marine approved AR-15 scopes in the market, but this is a fantastic beginner scope that will deliver hints of performance. The manufacturer has advertised it as a great scope in low light settings. You can see it in direct sunlight as well. The only downside is that the manufacturer has not included or even made a sunshade compatible with this AR-15 scope. People have been claiming that this scope has a bit of distortion at its highest levels of magnification. Overall, this AR-15 scope feels surprisingly tough for its price.


  • Low light capable for use during dusk and dawn.
  • Waterproof and fog proof.


  • The reticle is not clear beyond the crosshairs.

Vortex Optics Viper 6.5-20*50 Focal Plane Riflescopes

Best Ar-15 Scopes 7 Vortex Optics Viper 6.5-20x50 Parallax Adjustment Second Focal Plane Riflescopes

This AR-15 scope is manufactured in a 30mm main tube with a hard anodized finish. This makes it a rugged and tough hunting riflescope. Originally, this AR-15 scope was used by the United States of America Marine Corps. It has proved to be the best for estimating range and bullet holdover.

The premium and fully multi coated lenses will bring an excellent resolution and color fidelity. The XR coatings in this AR-15 scope provide enhanced light gathering while the coating protects the lens from any damage.

You might be wondering the use of capped reset turrets. It allows quick re-indexing after sighting in the riflescope. Furthermore, the fast focus eyepiece allows quick and easy reticle focusing. This AR-15 scope is ideal for predator and target applications.


  • Fast and easy quick reticle focusing.
  • Extra low dispersion lenses.


  • Expensive.

Vortex Optics Viper Pst Gen Ii Second Focal Plane Riflescopes

Best Ar-15 Scopes 8 Vortex Optics Viper PST Gen II Second Focal Plane Riflescopes

This AR-15 scope will take incredible performance and rock solid tactical features to new heights. Additionally, it is an ideal choice for close to medium range shooting scenarios.

If you dial your turrets for bullet drop and wind compensation, you will definitely appreciate the laser etched turrets. You will be able to keep track of your turret position with the fiber optic rotation indicator.

Furthermore, the reticle offers shooters with highly functional and detailed hold points. Away from that, it will remain uncluttered for optimal viewing. It features multiple intensity levels with an off position between each setting.

The extra low dispersion glass increase resolution and color fidelity while the multi coated lenses increase light transmission. Your lenses will be protected from scratches and dirt with the armortek coatings.

Other crucial features include the viper that delivers waterproof and fog proof performance. Last but not least, the aircraft grade aluminum material gives you a durable platform.


  • Very nice and reasonably priced.
  • It works as advertised.


  • Not easy to adjust.

Eotech Vudu 1-6*24 Mm Precision Rifle Scope

Best Ar-15 Scopes 9 EOTECH Vudu 1-6x24mm Precision Rifle Scope

Do you know that the manufacturer is well known for its industry breakthrough in holographic technology? They are attributed to have brought one of the most reliable mid-range AR-15 scopes of all the time.

The reticle in this AR-15 scope will increase in size with the magnification. Additionally, it comes with impressive light transmission and scene clarity.

The illuminated reticle will definitely improve aiming under low light conditions. Last but not least, the manufacturer has included a lifetime warranty in the package. Finally, it is an affordable product that will match the quality you have been looking for.


  • It comes with a warranty.
  • XC high density glass.


Simmons 8 Point 3-9*50mm Rifle Scope With Truplex Reticle

Best Ar-15 Scopes 10 Simmons 8-Point 3-9x50mm Rifle Scope with Truplex Reticle

Have you been searching for reliable AR-15 scope that comes with robust features for the price? You are definitely in the right place. Additionally, this AR-15 scope features coated optics to provide bright and high contrast images. Furthermore, it is constructed to be waterproof and fog proof.

Other crucial features included by this manufacturer include audible click wind-age and elevation adjustments. The elevation system will stay locked to zero. Last but not least, the QTA eyepiece enables easy target acquisition.


  • High magnification power.
  • Robust features are set for the price.


  • It is a bit pricey.

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What should you look at when purchasing the best AR-15 scopes in the market?

There are some specific qualities you should look for when purchasing a new AR-15 scope. The first and most important thing is to define your needs. You should be aware of what to expect from your new AR-15 scope. You might have been looking for completely different features whether you are a hunter, casual range shooter or a target shooter.

Since we have reviewed the top AR-15 scopes in the market, now it is the right time to look at several things you should never forget when shopping for an AR-15 scope.


There is no doubt that you have come across some AR-15 scopes with numbers that look like 3-9*40. This is simply the magnification range of the scope. Such types of scopes can produce images at least three times bigger than what you see with your naked eye. “40” is the size of the objective lens. The objective lens is the lens furthest from the shooter. Typically, it is measured in millimeters. The presence of a big objective lens means that more light will be transmitted. This will lead to clearer images.

It is good to know that not all AR-15 scopes are manufactured for all round use. With that in mind, you should consider first where you will be using your AR-15 scope. Are you going to use your AR-15 scope for big game hunting trips? Will you be using it in an open field?

You can go for an AR-15 scope constructed with a maximum magnification of at least 12x if you are going to use it for extreme long distance hunting in an open field. All that you need to ensure is that the specific AR-15 scope has a good objective lens. You don’t have to purchase a powerful scope if you are hunting in a dense forest.


Nowadays, reticles come in different forms. Similar to the magnification power, choosing a reticle mainly depends on where you will be using your AR-15 scope. There are several types of reticles namely the duplex, mil-dot and bullet drop compensation reticle.

Of the three types, the duplex is the most common reticle. Also, it is the most straightforward. This type of reticle is designed for quick target acquisition. Additionally, it features thick lines on the edges. You will also find thin lines near the intersection point.

In most cases, AR-15 scopes manufactured for long distances sometimes include a duplex reticle and several markers. These markers allow you to estimate distances. On the other hand, the mil-dot reticle is similar to the duplex reticle in terms of appearance. Mil-dot reticle features a simple cross etched on the scope. The only major difference between the mil-dot reticle and duplex is the set of markers. It is advisable to go for the mil-dot reticle if you are a hunter or even a marksman who enjoys long distance shooting.

Last but not least, the BDC reticle allows you to consider the effects of gravity on the fired bullet. You are required to aim higher in long distance shooting. You will have the measurement needed to compensate if you have the BDC reticle. AR-15 scopes designed for long range shooting comes with a BDC reticle.

Although it is not common, reticles are illuminated. This is done for precise target acquisition in low light environments that are commonly experienced when hunting during dusk. It is quite hard to see illuminated reticle in dark environments. Most people prefer black reticles for shooting competitions.

Focal Plane

A reticle is either found at the first focal plane or the second focal plane. What does this mean? It is the position of the reticle inside the scope. The most useful focal plane is found near the objective lens while the second one is near the eyepiece. Every time you adjust the magnification power of your scope, the reticle located near the first focal plane is magnified. It is magnified with the image. The small markers become larger when you zoom in a scope with a mil-dot reticle. This allows better accuracy over long distances.

Instead of the reticle on the second plane growing bigger, it remains the same size. This happens even when the magnification level of the scope increases. Choosing either of the configurations mainly depends on your personal preferences.


The body of the AR-15 scope can vary in diameters of 25mm and 34 mm. It depends on the brand and the type you are looking for. AR-15 scopes with larger tubes come with more space for interior components. This increases the range of adjustment. It is quite vital for long distance targeting.

Furthermore, you should shop for an AR-15 scope that comes with nitrogen or argon purged. This prevents fogging. Moreover, it should be waterproof and shock-proof.

Eye relief

Eye relief feature is very important if you don’t want to get bruised when firing your gun. There is a distance between the ocular lens and your eye whenever you pull the scope to your eye level. In most cases, eye reliefs are around four inches. You can agree with me that this must be a short distance for higher recoiling rifles. Higher eye relief is for people who own powerful rifles. This will avoid the scope eye.


It is rare to find parallax in most low magnification scopes. Be aware that parallax only occurs in high power scopes. This illusion increases with magnification. It is known to give a larger margin of error at higher powers. Most AR-15 scopes feature an adjustment ring that is located on the objective bell.


A warranty might look irrelevant, but it is one of the most important factors that should never be ignored. The most reputable and trusted manufacturers provide lifetime warranty since they believe in the quality of their products. In case your AR-15 scope turns to defect, you can return it to the maker.

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Bottom line

There are numerous benefits of using an AR-15 scope. The right AR-15 scope will improve your experience and shooting performance across the board. The best AR-15 scope will give you more accurate shots while at the same time increasing the shooting range dramatically. You will easily shoot from a safe distance against an aggressive game. Additionally, you can recognize the game from far.

It is about preferences when purchasing the best AR-15 scopes. You need a different scope if you will be shooting in an open field than someone who often participates in shooting competitions.  Hopefully, with this review article and buying guide on hand, you will be able to make an informed decision when buying your dream AR-15 scope. Let me know if you have any questions. Thanks!


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