Home » Gun Scopes » Best Ruger AR 556 Scope 2022 – Top 7 Ultimate Reviews & Buying Guide

When you buy through links on our site, we may earn an affiliate commission at no cost to you.

Best Ruger AR 556 Scope 2022 – Top 7 Ultimate Reviews & Buying Guide

Sport shooter, big game hunter, or varmint hunter, you know that your choice of rifle scopes is crucial for your firearm? Focal length, mounting rings, reticle, magnification? All important factors to be taken into account.

That’s why we guide you in your selection of products with our best Ruger AR 556 Scope review.

Like many American arms manufacturers, Ruger has embarked on the production of AR-15s to meet the ever-increasing demand from sports shooters.

Therefore, to get the most out of your gun and become a world-class marksman, you should get one of these…

best ruger ar 556 scope
Photo by Anything photography

Top 7 Best Ruger AR 556 Scope 2022 Reviews

1 Nikon P-223 BDC 600 Riflescope

The Nikon P-223 is manufactured with aerospace grade aluminum for durability. This single block of aluminum is nitrogen filled to make it resistant to fogging. It is also O-ring sealed to make it waterproof.

Very practical to use…

With this scope, you get a 1/4 inch MOA to make fine adjustments. The zoom feature is up to 12 x, so the fine MOA makes it very practical to use. Even at long range, you will use this best Ruger AR 556 scope easily.

To give you the best eye relief, the lenses are fully multi-coated. These allow for maximum brightness and light transmission. The end product is a superior optical clarity at all magnifications.

Keep adjustments to the minimum…

This scope has been configured to automatically compensate for bullet drop. If you use your AR 15 with the .223 Rem/5.56 NATO round with 55-grain polymer tip bullet, then you do not need to make any adjustments. In any case, you also get a reliable return to zero with this scope to make for the most practicality of its use.

Overall, the turrets are designed for fast action, which is a decisive factor in sports shooting.

Nikon P-223 BDC 600 Riflescope
Our rating:4.7 out of 5 stars (4.7 / 5)

  • Waterproof.
  • Moisture resistant.
  • Well adaptable to long range use.
  • Multi-coated lenses for superior optical clarity.
  • Built-in Bullet Drop Compensation.
  • Rapid action turrets.
  • The turrets do not have a lock-in feature to keep them in place.

2 Nikon ProStaff 3-9 x 50 Black Matte Riflescope

Another of Nikon’s top models, you will get a 9 x magnification with this scope. To make for the most user comfort, you also get a 3.6 inches eye relief feature at any range.

98 percent light transmission rate…

The lenses on this product have a 98 percent light transmission rate. This provides you superior visuals even when aiming at a long range target. Additionally, this best Ruger AR 556 scope has been configured with a bullet drop compensation feature. Hence, even if you are not an expert shooter, this scope will make you one.

The ruggedness of this scope is similar to that which you get with all of Nikon products. It is manufactured with a single block of aerospace grade aluminum for durability. This is then sealed with nitrogen and O-rings to make it both waterproof and moisture resistant.

Built to last…

Also, with this product, you are sure it will not get damaged easily as it is both shockproof and impact resistant.

To give you an assurance of these, you get a lifetime warranty with this product.

Nikon ProStaff 3-9 x 50 Black Matte Riflescope
Our rating:4.6 out of 5 stars (4.6 / 5)

  • Good eye relief at any range.
  • Shock and impact resistant.
  • Superior optical clarity.
  • Built-in Bullet Drop Compensation.
  • Waterproof and moisture resistant.
  • Lifetime warranty.
  • No included lens covers to protect them when not in use.

3 Bushnell AR 3-9x/40mm Optics

As with all incredible scopes, this scope from Bushnell offers you a decent eye relief. Not only that, but you also get a clear view as the lenses are multi-coated for the best optical clarity. Even better, at its 9 x magnification, you can use this scope for short, medium, and long range targets.

You also get a bullet drop compensation feature. This has been designed for the 55-62 grain, 223 REM/5.556 loads, which are a fairly general model. However, there are fast action turrets with which you can configure it to suit your preferences.

These allow for 1/4 MOA adjustments, which will see you through any shooting activity just fine.

Raindrops keep falling on my head…

Also, with the Bushnell AR, you get all weather compatibility. It is waterproof and resists fogging, so will not let you down, whatever the weather. It is also able to withstand recoil impact and other kinds of impact without getting damaged.

Implementing a fast focus eyepiece, and with its reliable return to zero feature, the Bushnell AR is a good bid for fast-paced shooting activity.

Bushnell AR 3-9x/40mm Optics
Our rating:4.3 out of 5 stars (4.3 / 5)

  • Decent eye relief.
  • Multi-coated lenses for superior optical clarity.
  • Built-in Bullet Drop Compensation.
  • Fast action turrets.
  • Fast focus eyepiece.
  • All weather compatible.
  • Shock and impact resistant.
  • No lens covers are included in the pack.

4 Bushnell AR 1-4x/24mm Optics

Tagged by the manufacturers as the scope that gives you clarity in any condition, the Bushnell team have done a lot to guarantee this. On this scope, you get fully multi-coated optics that offer you good optical clarity. It holds up in any condition as the scope is both waterproof and is resistant to fogging.

The lenses have an extended hood, so glare does not affect you when using it. Hence, in the rain, snow, or sun, it will work perfectly.

Even better, the lenses are included with covers that you could use when storing the scope.

In for some real action…

The reticle is calibrated for 55-62 grain, 223 REM/5.556 loads. These are a general class. If you fall into the category, then you do not need to worry about bullet drop compensation with this Bushnell AR scope model.

Also offering you a fast focus eyepiece and a 0.1 mil click value, you are in for some real action.

Magnify up to 4 x with this scope and start to see your targets in a better light.

Bushnell AR 1-4x/24mm Optics
Our rating:4.4 out of 5 stars (4.4 / 5)

  • Multi-coated lenses for superior optical clarity.
  • Waterproof and moisture resistant.
  • Extended lens hood to prevent sun glare.
  • Included lens covers for safe storage.
  • Built-in Bullet Drop Compensation.
  • Allows for superfine adjustments.
  • Fast focus eyepiece.
  • The 4 x zoom feature is best for short and medium range targeting.

5 Trijicon ACOG 4 X 32 Scope

It is no secret that an illuminated reticle will offer you better clarity in certain situations. An example is at dawn and at dusk – when the ambient light is not as clear as it should be.

Another advantage of this reticle type is that it provides you with good contrast against a wider range of backgrounds. The discouraging aspect though is that it requires batteries to run. This removes such scopes from the favorites list of several users.

What’s the real story?

With the Trijicon ACOG 4 X 32 scope, you get an illuminated reticle that is battery free. Even better, this reticle adjusts brightness automatically regardless of ambient conditions to give you superior clarity.

Due to these next-gen features, it is the preferred choice for military applications. Now imagine what you could do with this in the field.

For durability, this unit is housed in a 7075-T6 aircraft-aluminum-alloy housing. This housing provides shock and impact resistance. And is waterproof and moisture resistant. The end product is a nearly indestructible rifle scope.

Aim with both your eyes open…

Well, we have three for you. The Trijicon ACOG incorporates the Bindon aiming concept in its design. Hence, you can aim with both your eyes open.

You get a bullet drop compensation feature that is precise even at an 800-yard distance.

Third, you get a limited lifetime warranty. This should give you all the confidence you need in this product.

Trijicon ACOG 4 X 32 Scope
Our rating:4.3 out of 5 stars (4.3 / 5)

  • Illuminated battery-free reticle.
  • The fiber optic illuminated reticle provides good aim in low light conditions.
  • Shock and impact resistant.
  • Waterproof.
  • Moisture resistant.
  • Built-in Bullet Drop Compensation.
  • Great for use in both short, medium, and long range.
  • Does not have two reticle lights as with most illuminated models (green and red). And red might not be optimal for all contrasts.
  • High-end product.

6 UTG 3-9X32 1″ BugBuster Scope

Bugs are mostly annoying and are very small. While the “BugBuster” scope does not imply that you should go bug hunting with your rifle, it tells you how precisely you could hit a bug, even at a considerable distance. Looking at its complete set of features, you quickly find out why several hunters and sport shooters are addicted to this scope.

So what do you get with this product?

First, the turrets allow for fine adjustments (1/4 MOA per click). Secondly, as with most scopes, the lenses on this product are multi-coated for superior optical clarity. Taking that a notch further, the UTG is coated with an emerald coating that allows for maximum light transmission and even better visual quality.

Also with this product, you get a red and a green dot reticle for dual applications. These easy to interchange lighted reticles provide you a perfect line of sight even in low light situations.

Come rain, come shine…

You will also get a large field of view with this product. This and the good clarity ensure that you get a decent eye relief.

Shockproof, fog proof, rainproof, and impact resistant, this unit an all in one. Add that to the reliable lockable and resettable turrets, and you get a durable, practical rifle scope.

With its lifetime warranty, you can be sure that you get just that from this surprisingly inexpensive scope.

UTG 3-9X32 1
Our rating:4.3 out of 5 stars (4.3 / 5)

  • Allows for long, short, and medium range use.
  • Enables fine adjustments for precision shooting.
  • Red and green illuminated reticle.
  • Decent eye relief.
  • Resistant to shock and impact.
  • Water and moisture proof.
  • Reliable return to zero.
  • No built-in bullet drop compensation feature.

7 Vortex Optics Strikefire II Red Dot Sight

The Vortex Optics is one of the best ranges of sights provided by the Vortex group. It outshines a lot of other scopes as it has an illuminated reticle. This reticle has a green and a red light so can be used against any contrast, and in low light conditions.

Will brighten up your day…

With this product, you also get ten brightness settings. This is quite practical as too bright, and you could damage your eyes. Too low, you may easily lose sight of your target.

Also with this best Ruger AR 556 scope, you get fully multi-coated lenses that give you superior clarity. This and the brightness feature provide pretty decent eye relief.

Built like a tank…

The Strikefire II is manufactured with aerospace grade aluminum for durability. This is O-ring sealed and nitrogen purged to make it both waterproof and fog resistant.

And as a complimentary gift, you get a badass Vortex hat with your purchase of the Vortex scope.

Vortex Optics Strikefire II Red Dot Sight
Our rating:4.7 out of 5 stars (4.7 / 5)

  • Illuminated green and red reticles.
  • Can be used in low light situations.
  • Ten brightness settings.
  • Decent eye relief.
  • Superior optical clarity.
  • Waterproof.
  • Free Vortex hat included.
  • Several units are included with a pen and not a hat as advertised.

Best Ruger AR 556 Scope Buying Guide

Here for you are a few tips that will help you make the best of your purchase. Understanding the main components of your scope will help you to determine the best fit for your needs.

So let’s check them out:


Before we go any further, let’s face it: your budget will be your main factor when you examine the scopes. The price range for scopes can range from less than $100 to something requiring a mortgage.

ruger ar 556 scope
Photo by Eric Dobis

If you are in the high-quality scope market, you will be interested in the high-end products. That said, you can still get a decent level of quality at a much more reasonable price range.

Price does not directly translate to satisfaction, so taking a look at the rest of the details will help you get a decent fix for your scope needs.


Once the budget is established, the most important factor to consider, even when you start looking for a scope, is exactly how you will use that rifle and scope.

Consider the distances you shoot and hunt. And consider the total weight. Then consider the complexity you really need for your scope.

Have a good idea when you start the buying process.

Although there are many types of scopes, there are basically two categories for the most common scopes:

  • Variable Scopes: Variable scopes are the most common. And they allow the user to adjust the magnification to meet their needs. These scopes are best used in situations where the user can take a proper view at varying distances.
  • Fixed Ranges: As the name suggests, the user can not adjust the magnification. These scopes are ideal for situations where the user generally uses the weapon in the same environment and distance each time.

While most of the items on this list only feature the variable scopes as they are the most practical, there are still some sub-categories that you need to look into:


You should be able to determine the magnification values on the different scopes. You will see numbers like 2 × 30 or 3-9 × 32.

Here is what they mean:

The first digit is the level of magnification.

The second number corresponds to the diameter of the frontal lens (objective lens diameter).

If there is a range in the first number, for example, 3 to 9, this range is a variable extent whose magnification varies from 3 to 9.

If there is only one number in the first value, it is a fixed range, and the magnification is set to that number.

However, while you might believe that the best choice for rifle scopes is to choose a scope with maximum magnification, it is not always the case. Choose a scope magnification that matches the shooting style that best suits your needs.

Although there are many schools of thought on magnification, here is a very brief summary that should help you.

  • The 2 x – 4 x magnification range is good for shooting at a target within 170 yards.
  • The 4 x – 10 x magnification range is suitable for game up to 300 yards.
  • 10 x – 25 x are for extreme distances.

In any case, ensure that the scope offers you superior optical clarity at all magnifications. It should have an anti-reflective coating because you will get much better brightness with this coating as opposed to raw glass.

Lens Diameter

The objective lens allows the light to pass through the telescope and returns it to the ocular lens, this is the lens closest to the eye. Essentially, the larger the frontal lens, the more light it is allowed to enter the telescope.

Just be aware that the larger the diameter of the lens, the heavier the telescope.

Hence, an average sized lens is a good idea unless if you don’t mind a little extra weight.

ruger ar 556 scope reviews
Photo by Wedding guru

Eye Relief

Eye relief is the distance from the back lens that your eye needs to see a complete image. The standard eye relief is about four inches.

Several scopes offer less. Be careful not to use a scope with a smaller eye relief if you use a stronger rifle.

Hence, go for a product with around four inches or more.

Tube Size

Basically, the tubes are available in two sizes: 30 mm and 1 inch. No size has any notable advantages over the other. The key is to know the size of your tube in order to buy the appropriate mounting rings.

So What’s The Best Ruger AR 556 Scope?

As you must know by now, the best scopes are those that are reliable and offer you the best optical clarity. Your AR 556 is a quality gun, so getting a great scope to match it should not be a choice – it should be a decision.

While these are the best Ruger AR 556 scopes on the market, we still suggest that you go through the tips in our buying guide before making your final pick. They are sure to guide you in narrowing down which scope is best for you.

For us, however, the…

…is our favorite scope. This unit provides you with several brightness settings and two illuminated reticles for a superior aim whenever you use it. Even in low light conditions, you’ll still be at the top of your game.

Also, with its all-weather compatibility and offering you a decent eye relief, you should see why this is our preferred choice. To cap these, you get a complimentary Vortex gift with your purchase.

Leave a Comment