Top 8 Best Scopes For AR 15 In 2023 Reviews & Buying Guide

This will be a challenge! The goal is to pick the best scopes for AR 15 shooters. As many will know, there are more scope choices for this platform than you can shake a stick at. But maybe that is half the fun.

All of the major scope manufacturers produce scopes for AR 15 use, but all are certainly not equal. The intention is to look at a wide range of optics. These will offer different functionality and features as well as prices from low to very high.

Setting the limit at eight models means there is sure to be disagreement over models left out. However, here goes:

Best Scopes For AR 15 In 2023 Reviews

Let’s start with a scope that will suit those new to the world of AR 15 scope use. It’s not a bad choice for the more experienced either!

1 Monstrum 2-7×32 AO Rifle Scope w/Illuminated Rangefinder Reticle and Parallax Adjustment – Best Beginners Scope For AR 15

Monstrum Tactical are certainly no mugs when it comes to quality scope manufacture, and this model clearly shows their expertise.

A very solid entry-level choice and more…

While this 2-7×32 scope is a great choice for those new to AR 15 optics, it will also serve the more experienced very nicely. It offers between 2 and 7x variable magnification, a 32 mm AO (Adjustable Objective) lens, and 1-inch main tube. This makes it a good fit for short to medium range targeting.

It is possible to reach out to 400 yards with this scope. However, in respect of distances, most new shooters would do well to lower their sights(!) Accuracy out to 300 yards should be the goal.

Impressive specs…

Available in black or FDE (Flat Dark Earth), one thing is for sure, robust use is also yours. Monstrum Tactical has constructed this scope using durable 6061-T6 aircraft-grade aluminum and a nitrogen-purged, water/fog-resistant housing. It comes in at 9.5-inches in length and weighs just 12 ounces.

Field of view at 100 yards runs between 58.9 and 16.9 feet, while eye relief varies between 3.5- and 3.8-inches.

Adjustability in more ways than one!

The mentioned AO lens is a very handy addition. It benefits users by giving a sharper focus on target images, works to eliminate parallax, and assists with range estimation.

You can then consider the advantages of the adjustable, illuminated reticle. This is etched black and will always be visible without illumination. However, it does come with five brightness levels to enhance reticle visibility, dependent on the conditions you are shooting in. This includes low-light environments such as deep brush or when hunting at night.

It comes with finger adjustable capped reset turrets and offers MOA windage and elevation adjustability in 1/4 MOA click steps. As for the multi-layer lens coatings, these help protect against any scratches while also improving the clarity of view.

Throw lever…

Included in the very appealing price comes a ‘tacticool’ detachable throw lever that is sure to turn heads. Also included are 1-inch medium scope rings for weapon attachment and lens caps. In terms of torque for the rail mount and scope rings, Monstrum recommends 30ft/lbs and 18ft/lbs, respectively.

All-in-all the Monstrum 2-7×32 AO rifle scope has to be classed as an excellent scope for the price, features, and inclusions offered.

2 Vortex Strike Eagle 1-6×24 Riflescope – 2 Models – Best 3 Gun Competition Scope For AR 15

This is the first Vortex model to be reviewed in terms of the best mid-priced scopes for AR 15 shooters. It won’t be the last! Vortex really does produce optics that offer exactly what shooters are looking for.

Close to Mid-range accuracy is yours…

Whether you are practicing at the range, into 3-gun competition, or out doing what most enjoy, hunting, this rifle scope has you covered. The true 1x low-end magnification works in a wide variety of situations and allows rapid target engagement from point-blank range.

You can then move gradually up the magnification scale to 6x in order to accurately hit mid/longer range targets. This 1-6x variable magnification is complemented by a 24 mm objective lens and a 30 mm one-piece main tube.

Magnification adjustment could not be easier. This is thanks to the magnification ring, which includes a thread-in throw lever. This means magnification level changes can be made without having to move your head from the scope.

Reticle difference between the two available models…

Whichever reticle you choose, it sits in the SFP (Second Focal Plane). The difference in the two models relates to reticle choice. Both are LED red illuminated and come with an included CR2032 lithium battery. However, the cheaper version has a standard BDC (Bullet Drop Compensation) reticle; the more expensive version offers a BDC3 reticle.

There is no doubt that the standard version will suit many, so here is a brief description of…

What the AR-BDC3 reticle offers:

It has been specifically tested and tuned to the ballistic performance of AR 15 platform weapons using common 5.56 loads. The design includes a 1 MOA center dot that provides a precise aiming point.

You then have a surrounding broken circle of 16.625 MOA. This assists in getting your eye into the reticle center quick-time. From there, it gives the ability for rapid target acquisition. The other real plus is that at known distances, the BDC will keep you right on target out to 650 yards.

It should be noted that the listed reticle subtensions which are used for range estimation, holdover, and wind drift correction are only accurate when on the highest (6x) magnification.

Features and Specs. worthy of mention…

Other specs worthy of mention are the proprietary fully multi-coated lenses that come with multiple anti-reflective coatings on all air-to-glass surfaces. You will see these termed as XD (Extra-Low Dispersion) glass elements. This provides crisp, clear imaging through enhanced light transmission.

There will be no worries when it comes to use in any kind of weather or environment. This is due to the robust anodized aluminum tube construction and the fact the scope is waterproof, shockproof, and fog-proof. As for the included fast-focus eyepiece, rapid target acquisition is a given.

Dimension-wise, the scope is (LxWxH) 10.5 x 3.38 x 3.75-inches and will add 18.5 ounces to your weapon. Linear field of view at 100 yards comes in between 19.2 and 116.5 ft., while eye relief is 3.5-inches. Included in purchase are flip caps, a lens cloth, and manuals for both scope and reticle use.

When it comes to the best scopes for AR 15 long distance shooting, the choice is once again ample. The real challenge for shooters comes with the vastly differing price points. To highlight this, here are three models that come in at a low, medium, and high purchase price:

3 Bushnell AR Optics 4.5-18x40mm Riflescope – 3 Models – Best Budget Long Distance Scope For AR 15

Bushnells have an excellent name within the shooting community. This 4.5-18x40mm scope comes in a number of models and shows the quality that can be had for a very favorable price.

How the three models vary (and are the same!)

Shooters have a choice of three models. The differences being in the reticle and illumination type.

There are two non-illuminated models. The cheapest comes with a Drop Zone-223 reticle. The mid-price one comes with a Windhold reticle and includes BDC (Bullet Drop Compensation) elevation turrets. The third (and most expensive) option comes with a red LED illuminated Windhold reticle and BDC elevation turrets.

Although these models vary in price, they are all on the low-end of wallet-pleasing for what is offered! The model looked at here is the cheapest version with the Drop Zone-223 reticle and is tailor-made for 5.56/.223 cartridges.

However, in terms of “same,” whichever model you choose, it offers between 4.5 and 18x variable magnification. You can then add to that a 40 mm objective lens and a 1-inch, one-piece main tube.

Coming in black with a matte finish, this optic is waterproof, shockproof, and fog proof for use in all weather conditions. It is 12-inches in length and weighs in at 19.4 ounces. As for other specs, the exit pupil runs between 2.2-8.9 mm, and linear field of view at 100 yards is 22 ft. Parallax runs from 10 yards to infinity, and eye relief is 3.6-inches.

Precise aiming points…

This reticle sits in the SFP (Second Focal Plane). Thanks to precise aiming points, it makes a solid choice for tactical and hunting shooters. A further benefit comes from the exposed MIL adjustable turrets. These allow for ease of wind and elevation adjustments to cope with whatever situation you find yourself in.

It comes with short and long throwdown levers that allow rapid magnification changes and a convenient side parallax feature. This allows shooters to make necessary adjustments without having to change their stance.

While it is highly effective in terms of long distance accuracy, you can also rely on it for shorter mid-range targeting. This is due to the fully multi-coated optics that deliver optimal light transmission. The design ensures bright, clear imaging under most light conditions.

Those long-distance AR 15 platform shooters looking for real value should take a close look at this optic. In fact, it’s one of the best value for money AR15 Scopes you can buy.

4 Vortex Optics Diamondback Tactical First Focal Plane Riflescopes – 2 Models – Best Value for Money Long Distance Scope For AR 15

Moving up the price ladder but offering features usually seen in much more expensive scopes comes the second Vortex offering. Their FFP (First Focal Plane) Diamondback Tactical scope comes in two versions. The model reviewed I reviewed is the 4-16×44 with EBR-2C MRAD reticle.

Solid build with features to impress…

Constructed from a block of aircraft-grade aluminum, this scope offers rigidity and strength. It also has a low glare, hard-anodized finish that helps conceal and camouflage your position. This Diamondback tactical scope is 14-inches in length and weighs in at 23.1 ounces.

Variable magnification of between 4 and 16x is complemented with a 44 mm objective lens. The solid, one-piece 30 mm main tube is as tough as you need. It is shockproof and has been designed to withstand recoil as well as expected impacts. The strong O-ring seals, along with nitrogen purging, also ensure fog proof and waterproof performance.

Field of view at 100 yards runs between 26.9 and 6.7 feet, while eye relief is a comfortable 3.8-inches.

Crystal clear vision…

It is fitted with extra-low dispersion (XD) glass that increases resolution and highlights colors. This results in sharp, crisp image views. As for the fully multi-coated, anti-reflective coatings, these are present on all air-to-glass surfaces and work by providing increased light transmission. The result is better clarity and effective performance during those low-light shooting sessions.

Then add to this the FFP glass-etched reticle that keeps subtensions accurate regardless of the magnification range. More on the reticle shortly….

Smooth magnification changes come through the precision-glide erector system. This functions effectively in any weather or terrain you are operating in. Three additional features that every long distance shooter will appreciate come in the form of:

An information-packed FFP reticle…

Shooters will be more than pleasantly surprised when considering the price of this scope against the included features. A point in case is the EBR-2C MRAD FFP reticle.

This has been designed to make the most of long-distance shooting and ranging abilities. It is effective for determining ranges, holdovers, windage corrections, and providing moving target leads.

The quality of this laser-etched glass reticle means MRAD specs are kept to extremely tight tolerances. As for the fine center crosshair subtensions, these provide an excellent balance between precision aiming and low-light visibility.

5 Steiner T5Xi Tactical Rifle Scope – Close Compact Riflescope for Hunting – Best Premium Long Distance Scope For AR 15

Take a deep breath when looking at the cost of this superb hunting and/or competition rifle scope. However, for really serious long-distance shooters with deep pockets, the Steiner T5Xi series will certainly not disappoint.

Ultra-solid build and feature filled…

Steiner’s T5Xi family of top-notch scopes comes in a variety of variable magnification sizes. The one looked at here is their 3-15x50mm model. It measures 13.1-inches in length with a weight of 29.8 ounces. All-weather/terrain use is yours due to the shockproof, fog proof, and waterproof (submersible up to 33 ft.) design.

This quality optic is ready to withstand whatever you put it through. There is no doubt that it will come back for more, time and time again. Steiner shows their confidence in quality build by offering a Lifetime Heritage Warranty. (As with any purchase, you should check what is/is not covered).

One of the Most Versatile AR15 Scopes money can buy…

Short to extended distance accuracy comes from the variable 3 to 15x magnification, 50 mm objective lens, and one-piece oversized 34 mm main tube. This design increases reliability and strength. It also allows for enhanced elevation and windage adjustments when shooting at longer ranges.

The included throw lever makes magnifications fast and easy. As for the Tenebraex lens covers, these are designed to protect those precious lenses from dust and moisture.

A ‘special’ reticle…

Reticle quality and effectiveness plays a huge part in acquiring and accurately hitting targets. This is particularly the case when it comes to longer range shots. Steiner has taken care of that need through the inclusion of their illuminated FFP (First Focal Plane) SCR (Special Competition Reticle).

While it has been designed for precision competition use, it is also highly effective for taking down your chosen large prey. Powered by a CR2450 battery, there are seven day and four night level settings. This ensures clarity of view dependent upon the light conditions you are operating in.

Quality through and through…

The extended illumination area and 1/10 mil ranging brackets give shooters precise ranging across the full magnification range. The second rotation indication feature is a Steiner exclusive. After the first 120 clicks, the scaled mil numbers automatically change. This prevents shooters from losing their position on the dial.

Best fixed magnification scope for a budget price…

Not all AR 15 shooters want variable magnification. Once again, the choice of fixed magnification scope models is wide. Choosing just one example is tough. But, with a low budget in mind, this 4×32 Tactical scope from CVLIFE could well be the answer.

6 CVLIFE 4×32 Tactical Rifle Scope Red & Green & Blue Illuminated Reticle with Fiber Optic Sight – Best Budget Fixed Magnification Scope For AR 15

A real bargain for what is offered…

This scope offers fixed 4x magnification and a 32 mm objective lens. Built using quality aluminum alloy, it has a durable black matte finish, is shockproof, and recoil resistant. Being nitrogen-filled also means it offers fog resistance.

It is just 5.5-inches in length and weighs 15.9 ounces. This makes it a good choice for hunters who like to move around their hunting grounds. The fiber optic sight also ensures quick, accurate target acquisition. Parallax is pre-set at 100 yards, while field of view is 36.6 ft. at 100 yards.

All-in-one choice of reticle colors…

It comes with a tri-illuminated, glass-etched reticle that is powered by an included CR2032 battery. Shooters have the choice of red, green, or blue illumination with three power settings for each color. This allows changes to be made depending on the light and weather conditions you are shooting in.

The green multi-layer coated lenses provide good light transmission for crisp images, accurate focus, and precise aiming. In terms of mounting, this fixed magnification tactical rifle scope comes with an integrated mount that has been designed to fit most 20 mm Picatinny/Weaver rails. You also get mounting slots on each side should you wish to add accessories.

Fantastic for those on a budget…

If budget is an issue, this is one of the best cheap scopes for AR15 on the market. It has its drawbacks, such as low light use and its weight, but on the whole a fantastic option for the price.

Best Red Dot Scopes for AR 15 Shooters

Red dot scopes are ideal for close encounters and continue to attract AR 15 shooters. With this in mind, here are two models that come highly recommended. The first will fit the budget of most; the second is for those serious shooters who are prepared to pay.

1 Bushnell Trophy TRS-25 – 1x20mm Red Dot Riflescope Sight – Best Budget Red Dot For AR 15

If popularity is something you set store by then, this Bushnell Trophy TRS-25 red dot certainly meets that requirement. Shooters have embraced the solid build, consistent performance, and keen price it is available for.

Put it through whatever you go through!

Coming in at (LxWxH) 2.5- x 3.4- x 2.2-inches, it weighs just 3.7 ounces and has a matte black finish. Compact it may be, robust it certainly is. The shockproof construction means it will withstand bumps, drops, and the harsh conditions hunters often find themselves in.

You can then include the fact it is nitrogen-purged for fog-proofing, and the O-ring sealing gives complete waterproofing (even if fully immersed in water).

Featuring an illuminated 3 MOA Dot reticle with 11 brightness settings means clarity of view is yours. This is regardless of the light conditions you find yourself in. It is powered by a long-life lithium CR2032 battery that, on middle settings, gives an impressive 5,000 hours of life.

Optimal height for your flat top AR…

This quality red dot comes with a supplied riser block. Once installed correctly, it is positioned to the optimum height when fitted to flat top ARs and tactical shotguns. The 1x magnification comes with a 25 mm objective lens and adjustment click value of 0.5-inches at 100 yards. As expected, unlimited eye relief is yours.

The multi-coated optics have amber-bright high contrast lens coatings that further enhance the mentioned clarity of target view. Any shooter who wants to test the red dot waters should take a close look at the TRS-25. It comes in at a more than realistic price for what is offered, making it one of the best value for money AR15 Red Dots you can buy.

2 Aimpoint Pro Patrol Rifle Optic 30mm Red Dot Scope – Best Premium Red Dot For AR 15

The final choice in the best scopes for AR 15 use is a red dot to be reckoned with. While it is certainly not cheap, it does offer value for serious shooters who demand top quality.

Designed to increase your first shot hit ratio!

This well-built scope comes with a long-lasting hard-anodized 30 mm tube. As for the 1x magnification, this is complemented by a quality 38 mm objective lens. It is fully shockproof, fog proof, waterproof, and has been tested to operate at between -49 and 160 Fahrenheit. That means use in virtually any weather and no matter how tough the environment you are operating in happens to be.

Coming in at (LxWxH) 5.2- x 2.8- x 3.2-inches it weighs a very manageable 11.6 ounces. The design lends itself to rapid target acquisition and accuracy. This means that your first shot hit probability should rise to more than pleasing levels.

Brighten up your day…

The 2 MOA Dot LED red illuminated reticle offers ten brightness settings to suit your shooting environment. As for the lenses, these are multi-coated, and users can expect 60% light transmission. This excellent optic is parallax free, eye relief is unlimited, and the adjustment click value comes in at 0.6-inches at 100 yards.

You also get flip-open front and rear lens covers that protect the precious optics. On top of this, it features a threaded front lens opening that works as an anti-reflection device, while the transparent rear cover can be used in an emergency.

Ease of mounting and impressive battery life…

The included QRP2 rail grabber mount means mounting is quick and easy. It is also compatible with such weapons as flat-top AR15s, M4 carbines, and M16 rifles, making it one of the most versatile AR15 red dots out there. As for battery life, the design incorporates a high-efficiency circuit and an included lithium DL1/3N battery.

This gives up to 30,000 hours of life. Put another way; this means it can be left switched on for up to three years on a single battery. While this is not recommended, it does show just what amount of use you will get from one battery.

Clever technology…

The other benefit here comes with an in-service and battery change date reminder feature. This makes for ease of inventory tracking, maintenance, and ensures you don’t run out of battery at a crucial time.

The final feature that must be mentioned is the fact that this Aimpoint Pro Patrol red dot is fully compatible with all generations of night vision devices. It can also be used with the company’s 3X Magnifier as well as its concealed engagement unit.

Best Scopes For AR 15 Buying guide

The first thing to establish is what sort of distances you intend to regularly shoot over. This is really split into three categories. The distances given below are based on shooters using .223 or 5.56 NATO cartridges:

While the above are broad examples, many shooters will want to shoot over varying distances. This being the case, then a variable magnification scope is the way to go.

For short range shooters, the choice should be a scope offering between 1-4x magnification or a red dot. Because the AR 15 platform excels at close-range, these scope options are highly effective for close range targeting.

Mid-range targeting is where the majority of varmint hunters sit. Choosing a scope between 5x and 9x power will certainly do the job. As for long range shooters, consider anything from 9x magnification and upward.

Durable, robust build

It is very likely you will be putting your rifle and scope combo through some regular, testing conditions. This is particularly the case for hunters. But, whatever your application, the scope you choose needs to be of robust build.

This means you should be looking at scope models honed from aircraft-grade aluminum and a solid, one-piece main tube. It should also be shockproof, waterproof, and fog proof. Again, these are highly important features for hunters.

Quality lenses

If you struggle to see your target, it stands to reason that you will find it hard to hit it! Do take your time to check out lens quality. Consider such things as the type of coating they have (fully multi-coated, anti-glare lenses work well) and their light transmission ability. The latter is required if you like to hunt in low-light conditions or deep brush.

Good clarity of target images and your surroundings is an absolute must if you are to make the most of any situation. On this point, your chosen reticle is also key. There are more types of reticle out there than you can imagine. If you are just starting out, keep it simple! A Duplex reticle offers straightforward crosshairs and is a solid choice when hunting.

Do you need illumination? Yes, if you are shooting at all hours of the day and like those dawn/dusk/night sessions. Not necessarily if you are a daytime, occasional or fair-weather shooter. You can be assured that non-illuminated vs. illuminated scopes very often impact on large price differences.

Features and Functionality

Again, this really is “Horses for Courses.” Those new to scopes should not over-complicate matters. Having an optic with more features than you can shake a stick at may seem very attractive. However, trying to understand, coordinate and make best use of too many features can be frustrating!

Consider at what level your shooting expertise is. Beginners should keep things as straightforward as possible. The more experienced will know what features are essential and which ones would be nice to have.

With the above in mind, it brings us onto….

Price

The popularity of AR 15 scopes means you have an excellent choice when it comes to cost. These optics range from low double-digit $ right up to 4-digit $. You should set yourself a firm budget limit then concentrate on models in that price range. By doing this, you will be comfortable with the price paid for the features and functionality offered.

Experienced shooters will know what they need and pay that price accordingly. On the other hand, it goes without saying that those new to scope use should temper their needs. Novice shooters do not need huge magnification, all the bells and whistle features, or the most expensive scope.

AR 15 use and expertise does not grow on trees. It is all about practice and then.… more practice! Taking a scope that meets your immediate and foreseeable future needs will set you in good stead. That is far better than buying into a scope that has more features and functions that you can handle.

If you outgrow a scope, you will know when it is time to upgrade. On top of that, if kept in good condition, there is still the possibility of a sell-on/exchange and smaller payment for an upgrade. The other option is to pass your scope onto your children as they start out in the exciting AR 15 world. In my book, the more responsible shooters out there, the better!

Looking for More Great AR15 Scope Options?

Then check out our comprehensive comparisons of the Best AR 15 ACOG Scopes, the Best Night Vision Scope for AR 15, Best Scopes for AR15 under 100 Dollars, or the Best AR15 Carry Handle Scopes you can buy in 2023.

You may also be interested in our in-depth review of the Primary Arms 2-5x Compact AR15 Scope.

Or for other more quality scopes for different rifles, check out our reviews of the Best Deer Hunting Scopes, the Best 300 Win Mag Scopes, the Best Scout Scopes, the Best Mil Dot Scopes, or the Best Scopes for M&P 15-22 currently on the market.

So, Which of These Best Scopes For AR 15 Should You Buy?

The best AR15 scope depends very much on what applications you favor. Are you a close quarter shooter? Do you revel in finding the middle range when hunting or improving your target accuracy? Or are you determined to up your long distance game? Making that decision a priority makes choosing the correct scope far easier.

The above eight choices cover these disciplines, and depending upon your shooting style/experience, they all have something to offer. But, recommendations need to be made, and with that in mind, here are three models that are very worthy of consideration, first we have the…

Aimpoint Pro Patrol Rifle Optic 30mm Red Dot Scope

…for close range targeting. It offers everything and more for the serious CQB shooter.

Mid-distance targeting is where most shooters sit. There are a host of choices here. However, for those just starting out or the more experienced shooter looking for good value, take a close look at the…

Monstrum 2-7×32 AO Rifle Scope w/Illuminated Rangefinder Reticle and Parallax Adjustment

It should fit the bill very nicely.

As for long distance accuracy, look no further than Vortex who offer a wide range of options. But, it is their…

Diamondback Tactical First Focal Plane – 4-16x44mm scope

…that offers mid-to-long range accuracy as a given.

The quality build, included features, and lifetime warranty are offered at a more than attractive price. This makes it little wonder that this is a ‘go-to’ AR 15 scope for many.

Happy and safe shooting.