Finding the best AR-15 ACOG scopes on the market can be tricky without a clear picture on how to choose the right one that will cater to your needs. For one, the scope must help you shoot precisely even for longer distances. It must also help you aim at and shoot for a shorter distance.

The Advanced Combat Optical Gunsight (ACOG) is great for use in combat and tactical shooting because it lets you use it right away for its fixed power. What it means is that users don’t have to adjust its optical power, especially when you’re in a battle. It also means that you can target and shoot immediately even without having to adjust your scope.

However, you might find it confusing to look for and use the right one, such as one with adequate brightness level or with battery-free illuminated scope, without thorough comparison of the top picks. Here are our top eight suggestions that should be able to help you.

Best ACOG Scope for AR-15Reviews of 2022

Best Overall
Our Score 9.6 Out of 10
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Our Score 9.3 Out of 10
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Our Score 8.8 Out of 10
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Our Score 8.6 Out of 10
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Our Score 8.1 Out of 10
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Our Score 7.6 Out of 10
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Our Score 7.2 Out of 10
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Our Score 6.8 Out of 10
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Trijicon TA31F ACOG 4×32 BAC Riflescope

Our Score 9.6 out of 10
Trijicon ACOG 4 X 32 Scope Dual Illuminated Chevron .223 Ballistic Reticle, Red
Trijicon ACOG 4 X 32 Scope Dual Illuminated Chevron .223 Ballistic Reticle, Red Check price

BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light

In addition, the scope for R-15 cartridges changes the game for many gun sights because it offers a dual illuminated reticle – the tritium and fiber optic illuminated reticle, allowing for domination in any lighting condition. So, with that, you can operate it well even in a place where there is minimal light. The reticle will help you dominate in all situations without you having to adjust the brightness because it has a reticle that can deliver the illumination needed based on the situation.

Moreover, the riflescope can offer you with the reliability and durability to give you the most value for your money. I would also like to mention that it can offer us with different reticle patterns for different calibers. Plus, this ACOG for the AR-15 allows us to take advantage of the Bindon Aiming Concept. It just means that it can let us shoot with both our eyes open, giving us the opportunity for situational awareness.

This scope on your AR-15 can also offer us the indestructability that we need. So, with that said, you can have peace of mind that the high cost associated with it is worth your spending. In addition, you can be sure that this ACOG scope is what the marines and military trust, and they do it for a reason. That is the unprecedented power and reliability of the scope.

On the cons, the Trijicon ACOG 4 X 32 Scope can be quite confusing to use for first timers, though.

  • Suitable for AR-15 flat top platform
  • Allows for both eyes shooting
  • Innovative reticle and optics system
  • Battery-free illumination
  • Durable aluminum alloy housing
  • Tricky to use for first timers

But nevertheless, it is a cool choice for a high-end sighting tool with the great features that we are looking for in an expensive scope.

Trijicon 4×32 ACOG/RMR Combo Riflescope

Our Score 9.2 out of 10
Trijicon 4x32mm ACOG Dual Illumination Crosshair .223 Reticle with 3.25 MOA RMR Sight Black Optics
Trijicon 4x32mm ACOG Dual Illumination Crosshair .223 Reticle with 3.25 MOA RMR Sight Black Optics Check price

BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light

In addition, it is one of the top rifle scopes for your AR-15 is with a rugged construction. You can count on it for long term use. Thanks to its rugged construction made of 7075-T6 aircraft-aluminum-alloy for its housing. I am also impressed with the indestructible sighting system that makes it a great choice for all shooting conditions.

Also, the sight is combat proven, so it is the choice among the military and marines. There is no other scope as trusted as it is when it comes to battle. I also liked its compact and sleek design that makes it easier to use.

The Combo Riflescopes fit the AR-15 well. On the market, it is a top choice among scopes for AR-15s for its sleek design and tough built. Nevertheless, it is the best Trijicon ACOG for AR-15 that I have ever seen for its reliability and durability.

On the cons, it has a short eye relief, which may pose an issue to some users.

  • Rugged construction for long-term use
  • Both eyes shooting allowed
  • Combat-proven
  • Dual sighting system piece of kit
  • Battery-free illumination
  • Short eye relief

But still, I would like to recommend this scope for its performance and heavy-duty use. It is also with a compact and sleek design that makes it simple to use. I’d also recommend it to users that want to get the most out of their purchase.

Trijicon TA31RCO-A4 ACOG 4×32 USMC RCO Riflescope

Our Score 8.8 out of 10
Trijicon ACOG 4 x 32 Scope USMC Rifle Combat Optic for A4
Trijicon ACOG 4 x 32 Scope USMC Rifle Combat Optic for A4 Check price

BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light

The Trijicon ACOG 4 x 32 Scope is also a chosen scope by the military and marines. For one, it is always ready. The good scope for AR-15 can offer you with a battery-free illumination, ensuring you can see clearly even with low ambient lighting. I also liked that it features the same fiber optic and tritium illuminated reticle, which cannot be found in other scopes on the market. It works intelligently when it comes to adjusting the brightness, so it can be used at nighttime, too.

In addition, the USMC Rifle Combat Optic is a great choice because it is combat proven. You don’t have to worry about it breaking because it is shock proof and impact proof, both adding to the durability of the sighting tool. Just like other optics systems from Trijicon, the scope is perfect for its outstanding performance, no matter the terrain or condition. You can also use it even on a rainy or foggy day.

On the cons, this item is not affordable. It might not be for beginners that want to invest on their first scope.

  • Durable housing
  • BDC and ranging reticles
  • No battery operation
  • Good for CQB sight with both eyes in open shooting
  • Easy to mount and use
  • Stiff price

Nevertheless, the high-quality ACOG optics for AR-15 is one of the best on the market for its solid performance and durable build. It is compact and simple to operate and made of rugged aluminum alloy housing for years of performance.

Trijicon TA31-CH-G ACOG 4×32 BAC Riflescope

Our Score 8.5 out of 10
Trijicon ACOG TA31-CH-G Trijicon 4x32 Scope with Dual Illuminated Green Crosshair .223 Ballistic Reticle
Trijicon ACOG TA31-CH-G Trijicon 4x32 Scope with Dual Illuminated Green Crosshair .223 Ballistic Reticle Check price

BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light

The high-quality ACOG scope for AR-15 also allows for both eyes shooting just like the other high-end Trijicon scopes on the market. This scope is also with the .223 Ballistic Reticle that adds to its convenience of use. It makes use of the Bindon Aiming Concept known of the brand.

I liked to mention that the Trijicon 4×32 Scope is also useful as a CQB sight when shooting with both eyes open. In terms of scopes for AR-15s on the market, you might also want to check it out for its bullet drop compensating and ranging reticles. It is also with the ranging reticle that gives you an opportunity for BDC out to up to 600 meters. You can also use it this way even without making any manual adjustments.

I would also like to recommend the scope for .223 chambered AR-15 rifles for its accuracy. There is nothing quite like it when it comes to battle and combat use. I don’t doubt why it is among the favorites of people working in the military or are assigned to battle terrorist groups.

On the cons, the installation process can be tricky for beginners.

  • Bindon Aiming Concept allowed
  • Ranging and bullet drop compensating reticles
  • No battery needed for illumination
  • Durable aluminum alloy housing
  • Perfect for combats
  • Can be hard to install for the first time

Overall, I am impressed with the overall performance of the ACOG scope. It is with a rugged build and sleek design. It is powerful and highly accurate. If you don’t mind spending a bit more for your scope, I recommend the Trijicon TA31-CH-G.

Trijicon TA02 ACOG 4×32 LED Riflescope

Our Score 7.9 out of 10
Trijicon TA02 ACOG Battery Illuminated LED Scope, Black Finish
Trijicon TA02 ACOG Battery Illuminated LED Scope, Black Finish Check price

LED ILLUMINATED RETICLE: Powered by a single AA battery, the LED ACOG can run for over 12,000 continuous hours (on setting #4) and features six adjustable brightness levels with an "off" between ea...

Any AR-15 owner can also appreciate that it has a LED illuminated reticle that can be operated with just one AA battery. This ACOG can operate for more than 12,000 hours. This model also comes with six different brightness settings, each also has an off switch.

The Trijicon TA02 is also with a durable construction. It can deal with all the harshest conditions out there. No matter the condition, you can rely on it. That is why it is perfect for sporting or tactical applications aside from combat. Also, thanks to the tough aluminum alloy housing, offering you an indestructible sighting tool.

If you have rifles like the AR-15, you should check out this scope, especially if you’re looking for a scope that can offer you with an opportunity for both eyes open shooting. It is one of the most innovative features of the sighting tool. The high-quality AR-15 ACOG scope is perfect for all situations because it can always deliver clear and bright sight picture for a higher chance of acquiring your target.

On the downside, this scope might not be for beginners, though.

  • Sleek and elegant black finish
  • Led illuminated reticle
  • BDC and ranging reticles
  • Durable construction material
  • Battle proven
  • Might not be a beginner scope

Nevertheless, the Trijicon TA02 is certainly one of the best in the category for its toughness and solid performance. Choose it if you want to get more value out of your spending.

Trijicon TA11C ACOG 3.5×35 BAC Riflescope

Our Score 7.6 out of 10
Trijicon ACOG 3.5 X 35 Scope Dual Illuminated Donut .223 Ballistic Reticle, Red
Trijicon ACOG 3.5 X 35 Scope Dual Illuminated Donut .223 Ballistic Reticle, Red Check price

BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light

This model is also ideal for a tactical rifle because it features a rugged construction. It can give you a solid performance. It can deal with shocks and impacts, so it is useful for long-term use.

This scope is also great to use because it can offer a battery-free illumination, which can adjust its brightness in accordance to the ambient light available. The 7075-T6 aircraft-aluminum-alloy housing also adds to its integrity and durability, so you can ensure its long-term use.

However, the ACOG for an AR-15 can be challenging to install for the first time.

  • Battle-proven high-quality Trijicon ACOG on AR-15
  • Ideal for CQB sight with both eye open shooting
  • Used by the Marines and military
  • Ranging and BDC reticles
  • Quality and rugged aluminum alloy housing
  • Stiff price tag

Overall, I’d like to recommend this scope for its design and uses. It is also durable and heavy-duty for years of use. The scope is also using the Bindon Aiming Concept, adding to its innovative uses. I’d like to recommend it to people who want a combat-proven and always ready sight for their tactical or sporting applications, too. You might want to check it out for yourself if you find these features useful for your purpose and intention of utilizing it.

Trijicon TA33 ACOG 3×30 Scope

Our Score 7.2 out of 10
Trijicon 3x30 Compact ACOG Dual Illum Red Horseshoe 5.56x45mm/62gr Ballistic w/ Colt Knob Thumbscrew Mount 400137
Trijicon 3x30 Compact ACOG Dual Illum Red Horseshoe 5.56x45mm/62gr Ballistic w/ Colt Knob Thumbscrew Mount 400137 Check price

The new 3x30mm model is designed for law enforcement and military applications where the combination of ample magnification, low light capability and long eye relief make the TA33 the Trijicon ACOG...

This model is equipped with .223 Ballistic Reticle that makes it ideal for advanced users. It can help you see clearly even with a target afar. The fixed power scope is also with a dual illuminated reticle that makes it reliable regardless of the lighting available in the place. Also, the ACOG 3 X 30 Scope also comes with the TA60 Mount, which makes it a sure value for money. You might want to consider this item if you’re looking for a ready to use scope for your mission.

This new model is also ideal for military applications, and that is thanks to its enough magnification. It also has a generous eye relief that adds protection to the user. With it, you can rely on it being eyebrow friendly when using high recoil firearms.

This model also comes with the accessories needed, including a Pelican case, a lens pen and a user manual, to name some. With these things, you can be sure that you don’t need to purchase additional accessories before you could use it.

However, this model can be hard to mount for beginners, though.

  • Designed and made for military and law enforcement applications
  • Comes with enough magnification
  • Dual illuminated reticle
  • Designed for low lighting conditions
  • Made to last for years
  • Can be hard to mount for first timers

But nevertheless, the target shooting or military scope is a complete kit that you can count on for long-term use. It is with enough magnification and has a generous eye relief. Check out the Trijicon ACOG (Advanced Combat Optical Gunsights) scope for yourself today!

Trijicon TA55 ACOG 5.5×50 BAC Riflescope

Our Score 6.7 out of 10
Trijicon ACOG 5.5 X 50 Scope Dual Illuminated Chevron .223 Ballistic Reticle, Red
Trijicon ACOG 5.5 X 50 Scope Dual Illuminated Chevron .223 Ballistic Reticle, Red Check price

ACOG 5.5x50 Red Chevron BAC Flattop.223 Reticle includes flat top adapter.
The chevron reticle is designed to be zeroed using the tip at 100 meters The width of the chevron at the base is 5.53 MOA ...

One of the things I liked about the sight is its Trijicon tritium or fiber optics. It works by automatically adjusting the level of brightness along with the reticle contrast based on the lighting conditions available. I am also impressed that it allows both eyes open aiming for quicker target acquisition. It also works well in any lighting condition.

This model also comes with an anti-reflective multiple coated lens, offering optimal clarity. It also works to gather light but without distortion. Also, this model is with the Tritium Phosphor Lamp.

How does it work? It is an excellent choice for its glowing reticle in low lighting but without requiring batteries to do so. This lamp can glow for up to 15 years. The ACOG – 5.5×50 is also with the chevron reticle. It is included in the design to offer ease of use with the tip at 100 meters. In addition, I liked that the scope can offer great range estimation even for silhouette targets. Also, this item is waterproof to 30 meters for its nitrogen filling that can help in eliminating fogging and moisture.

This model is also internally adjustable because only its prism is moving. With this feature, the ACOG scope is also more durable than scopes that have a conventional design. Also, I would like to mention that this scope can offer a longer eye relief for more safety when used for larger caliber rifles. It also works with a larger exit pupil, allowing for a faster target acquisition.

On the downside, this item is a bit expensive, so it might not be for beginners.

  • Can adjust the brightness level
  • Allows for both eyes shooting
  • Features the Tritium Phosphor Lamp
  • Aluminum Alloy Housing
  • Battery-free operation
  • A bit expensive

Overall, it is a feature-rich scope that can adjust its brightness level and allows for both eyes aiming. It also offers a battery-free illumination and has an aluminum alloy housing.

What is ACOG Scope and Sight?

The ACOG scopes on AR-15 are battle-proven. They are perfect for close quarters. It has made its way to become the most famous optics around for the marines and people in combat. There is nothing quite like this scope that possesses the most pleasant features that we’ve been dreaming of to have in a sight. It is a highly respected sight that is used by the most seasoned hunters, military men and other markets. There is no doubt that this powerful scope is carving its name in the niche because of its superior features that no other scopes have.

The best ACOG for AR-15 is with a no-battery illuminated reticle. It is considered as a game changer because you don’t need to replace any battery. In the end, it is money saving and always ready. In the combat, this feature is irreplaceable because you can ensure of aiming at your target fast without any illumination adjustment needed.

The AR-15 with ACOG scope also works better because it is a fixed power scope that has a simple construction. It is also more durable and compact than other riflescopes are. It is also suitable for low magnification requirements.

How Do Trijicon ACOG Work

The ACOG scopes for AR-15 do not require battery, so they work in an effortless manner. They don’t require much-needed maintenance at all. It is one of the things that make the ACOG so special. In addition to the convenience of using a no-battery reticle illumination, we also love the ACOG because it is effective at close range shooting, too. It is also effective for situations where you don’t need high power magnifications.

Also, the Trijicon ACOG scope comes with different configurations. There are models illuminated using tritium vials and passive fiber optics. On the other hand, you can also find those that use AA battery. In addition, these scopes can work with different brightness settings and have excellent illuminated reticles. With one, you can also adjust the brightness settings.

These scopes also provide users with great durability. They are suitable for combats, so they are used by anti-terrorist teams. Also, they are useful for people working in special units and armed forces.

Not to mention, these high-end scopes are also with a durable and high-end construction, so they are reliable for even the most unforgiving situations and environments. They are indestructible that they can last for many years. Nevertheless, most ACOG models are highly dependable to last and to deliver their excellent performance. They are what you need for most situations and even close range shots.

Why is the Trijicon ACOG So Expensive?

If you’re a gun enthusiast or someone in the military, you might also be interested to know about why the ACOG is expensive. Aside from the chevron reticle that some of these scopes have, they are expensive for many reasons. For one, they are with an excellent battery illumination in select models, which are battery powered.

While some people won’t like an ACOG for a CQB sight mission, they are top choice among those that want features like both eyes open shooting. It only means that the shooter doesn’t have to force himself to close one eye to aim at and acquire a target. So, with the Bindon Aiming Concept, users can shoot with both their eyes open. It is one thing that makes the ACOG expensive because it is a rare feature that cheap scopes do not have.

Also, the ACOG offers users with the ability to shoot even in a place where there is limited or low light. Especially if you’re living in Alaska, where about nine months of every year can present you with a low light situation very often, you can take advantage of having an ACOG scope.

These scopes also have durable and rugged optics, so it is the go-to scope among users that want to get the most value out of their spending. They can also operate to offers users the ease that they want because they can work battery-less. It is one of the most appealing selling points of this high-end scope. They don’t require batteries because they can use the light available, and that is also thanks to the Tritium integration they have.

What Makes a Great AR-15 ACOG Scope?

The ACOG sights for AR-15 are great for combat and people working in the law enforcement, special unit and military. These scopes are perfect in terms that it adjusts the brightness based on the available light. So, even if there is not much light in the situation you are in, you don’t need to worry about not seeing through the lenses clearly.

The Advanced Combat Optical Gunsights are some of the most well-loved AR-15 sights because they’re also available with different variants, allowing you to choose one based on your purpose and intended application. You can also find a wide range of reticle combinations, such as BDC reticle, giving you the opportunity to select one that matches your needs best. They are also innovative that some of them are using a combination of fiber optics and tritium for illuminating the reticle.

They have fiber optics that can absorb the power and the light at daytime. When there is no available light, the tritium component will work to provide the reticle with a glow. You can notice the long and red tube in an ACOG. It’s the component that absorbs the light and is used in illuminating the optics system.

What Magnification Do You Need?

This question on the magnification of the Trijicon optics for AR-15 is another that you need answered when shopping around for an ACOG scope. One thing that you need to know is that the ACOG is a fixed power optic system, ranging between 1.5 and 6 times, and a wider range of options in between. In terms of the selection, it can vary from one user to another.

For example, you might want the 4X magnification, which is the most popular choice among the military. However, it might not have the most generous eye relief, only about 1.5 inches. It only means that you need to aim and shoot with your nose to its charging handle.

You can also find a 3.5X35 scope that features a larger fixed magnification power but has a larger objective lens, too. But then, it can offer a nice eye relief and field of view. It can be a great scope that balance features, like the magnification, view field, and eye relief, although a bit bulky for some people. But, if you don’t mind a little weight, you might want to check this all-around scope.

Saying these things, you can choose the magnification based on your purpose and plan with the scope. As the magnification is different, the scope can also have different specifications, like eye relief and field of view. Remember these things, nevertheless.

Factors to Consider When Buying the ACOG Scope for AR-15

When buying AR-15 ACOG sights, compare your options well so that you can arrive at a sound decision. By using the right optical system, whether you’re using the AR 15 for self-defense, hunting or competition, you can take advantage of clear images from Trijicon scopes for AR-15. In the following, we’re discussing some tips when checking the different scopes to find on the market. Let us begin.

Types of scopes

One of the main considerations to check in addition to objective lens and fiber optic illumination, to name two, you should also check the type of scope that you’re buying because it has to do with the application or purpose.

One of the most common is the telescopic scope, which is suitable for medium to long distance shooting. It is designed and built with magnification and then with crosshair or dot reticle. You might want to go for a fixed magnification or a variable scope.

On the other hand, there are reflex sights that are easy to operate, integrate into the rifle and compact in build. However, you should consider the battery life, objective size and reticle size, to name some, for a great result like when using it for night vision.

You can also find Holographic Sights that apply a different system in terms of projection in the reticle creation. They use laser diode and have a superimposed reticle to the sight’s viewing window. These scopes that the Marine Corps also use don’t require extra optical components, making them compact and lightweight.

Types of reticle

In addition to varying eye relief, a fixed power scope or a variable power scope also have different reticle styles. You should figure out the reticle type that can work best for your needs so that you can take advantage of it well.

Dot reticle: Besides the forged 7075-T6 aircraft aluminum alloy that you might be looking for, you might also be considering a dot reticle, especially if you’re a beginner because it is simple to use. It has a single dot that can aim at the target precisely. On the other hand, a red dot reticle can be yours for a close-range shooting.

Bullet Drop Compensation: BDC allows you to aim precisely and immediately, according to your shooting distance estimation.

Optics power

Top rated sighting devices have a great optics power. You should look for it and avoid low powered optics that will just give you a headache. Know the distance that you want to shoot at. For example, you need a more powerful sight if shooting at 500 yards or more. However, the power of the optics should match your firearm’s capability. For example, a firearm with a great range at 500 yards might not benefit from a too powerful scope like one with a 12 times magnification.


In addition to a generous eye relief, you should figure out if you need an illuminated or a non-illuminated scope. If you shoot at night or in low lighting conditions, you might want to choose an illuminated scope.

These are only some of the things that matter when finding the right ACOG scope that will match your performance requirements. Consider them when comparing your options to improve your shooting ability and performance at the range, in hunting or in combat.


In addition to the above considerations, you should check the price, too, ensuring it is what you’re willing to spend on the sight. You won’t want to spend too much on the scope, so you might want to compare the different options on the price.

How to Use a Trijicon ACOG Scope

To use the AR-15 rifle scopes, keep reading in the following. Let us discuss some things you need to know regarding the use of your powerful scope. Things you need are your scope, weapon with flat-top mounting rail and screwdriver.

Check the ACOG in a dark place, and let your eyes adjust to the ambient light for about two minutes. Look through your scope, and check that you see an illuminated reticle. It will mean that the scope is working properly.

Install your scope. Put it on the mounting rail with its studs aligned with the grooves. Turn the knobs, and then add a quarter turn with a screwdriver.

Zero your ACOG by figuring out the impact point of your rifle based on the reticle’s center with a live ammunition if you’re at a target range or using a boresighter. Next, you can adjust the axis of the sighting device until the impact point is matching the reticle center. Move the center of the reticle to an inch at a 100 meters range. It will need four clicks in the intended direction. You can find the adjuster on top of your ACOG scope on the right side.

Clean ACOG with a brush side of the cleaning device that comes with your ACOG scope so that you can remove dirt from the lens. Use the felt cleaner to complete the lens clearing of the AR-15’s scope. The scope that has the illuminated reticle even without batteries should work fine with proper use. For better results, here are some tips for gun owners.

  • If your ACOG scope is damaged, you should contact the manufacturer that will perform the repair. It is because it has a radioactive material that can harm your health. Put it in a plastic bag and then wash your hands thoroughly if you think that your scope is broken or is leaking.
  • Contact the scope manufacturer is the scope is not working. Ask for further instructions.

Don’t force the adjuster if you’re finding it hard to zero in the ACOG. Or else, you might damage the assembly of the internal prism. You should contact the manufacturer for other instructions.

Frequently Asked Questions

Is an ACOG worth the money?

Yes, the ACOG scope is worth the money because it is tough to deal with even the harshest conditions. It is made of high-quality materials and has a compact design. It is also innovative that it can help you aim at your target precisely and immediately. Thus, it is chosen by gun owners that want to improve their accuracy in the field, at the range of in combat. For the best results, however, compare and study your options well so that you can figure out which ACOG scope matches your situation, purpose and needs.

What’s so good about ACOG scopes?

Such a quality rifle scope is great for tactical weapons and is ideal for a wide range of ambient lighting condition. It features illuminated reticles that can operate even without batteries. This unique quality can be one of the bestselling points of an ACOG scope. It makes use of fiber optics, which can react to the lighting condition available.

It can offer great reticle illumination, thanks to its tritium that can illuminate the aiming point even if you’re shooting in the dark or nighttime. The self-luminous radioactive material is another thing that makes an ACOG sight, which can be mounted on an RMR mount, so good for those in the military, hunting field or competitions. This Hydrogen-3 feature is incomparable feature because it ensures the optimal function of the scope even with a low lighting surroundings.

In addition, the ACOG possesses a fixed magnification, so it’s not adjustable, but from one manufacturer to another, magnification levels can be available to choose from at a high or a low price. It will let you choose the magnification amount you need, ranging from 1.5 to 6 times magnification power.

Also, remember that there will be fewer moving parts with a fixed magnification, which could translate to durability. Nevertheless, the scope is stylish, quality and compact. It also uses a red dot aiming reticle, which can illuminate according to the amount of light.

What is the difference between ACOG and red dot?

Red dot sights are known for reflex sights and are engineered for fast targets. They are using a projection system and can stay fixed on their target. It is regardless of your angle of looking down the sight. Most of the red dots from Trijicon on the market, for instance, don’t magnify. They are also used to replace regular iron sights. These scopes are usually lightweight and compact. They are also versatile for mounting on any weapon. They also have an adjustable illumination.

On the other hand, the ACOG scopes, which are very nice scopes, are a standard among the military. They are common for combats, although also useful for civilians. They also have fixed magnification between two and four times, allowing for precision when used between middle to long-range distances. They are ideal for low lighting conditions, too. They also have illuminated reticles with fiber optics, gathering ambient light. In this case, they are useful for daytime shooting as well because they can offer you with an excellent contract against your target.

What ACOG scope does the military use?

The military use a high end ACOG scope, which is ideal for combats, because it allows them to target immediately without having to adjust it. It also has a non-battery operated illumination that makes it suitable for shooting at low lighting ambience. For reference, a few of the top-rated ACOG scopes are featured earlier.

Is an ACOG good for hunting?

Yes, the stylish ACOG scope is good for hunting because it allows for fast target acquisition like the red dot sight. It is also for you if you don’t want to change the battery for the illumination because it has a Tritium glow, which can last for years even if you don’t adjust it. The ACOG sight is great not just for hunting but also for target practice and competition. You can also choose it if you are working in the military. Also, it might be for you if you want to take advantage of a scope at the range. The ACOG is also good for close-range shooting for the adequate magnification that can offer a nice view field.

Does ACOG work at night?

Yes, the ACOG is one of the coolest sights to use for nighttime because it can offer you with illumination that you don’t have to adjust. You don’t also have to use a battery for it. So, if you’re hunting in a low lighting ambience, you can also depend on it. This sight is perfect if you want a scope that can offer you with enough optical power even in the dark. That is why it is chosen by those working in the military or are hunting at dusk or dawn. So, if you’re someone who does not want battery powered optics, you should choose an ACOG that can give you illumination for clear sight picture even at night.

How far can you shoot with an ACOG?

The ACOG can be effective for close ranges to long range shooting. For example, one with a fixed four-power optic, you can use the scope for short to medium engagements. If you would use it at 500 yards, you might be able to hit a target consistently, too. Nevertheless, a great ACOG can eliminate all the trials and errors and adjustments needed. In fact, its holdover can also remain consistent between 100 and 500 yards (using the four-power optic as example).

Which ACOG has the best eye relief?

You should compare your options well when figuring out the eye relief. There are models with 2.5 inches eye relief. It can be a lengthier one when compared to other models. Still, we would recommend that you check that out when trying to compare the different ACOG scopes for the armed forces or civilian markets as well as backup sight. Just like a ballistic reticle that can differ from one model to another, the eye relief available can also be different. If you’re looking for a generous eye relief, you can get started looking into the top picks mentioned earlier and compare the offered eye relief for each of them.

How long does the tritium in an ACOG last?

When shopping around for an ACOG with a bullet drop compensation, for instance, you might also be asking how this Tritium will last. It can last for years, according to the many manufacturers of AR-15 sights.

Nevertheless, these sights have that illumination property that you can rely on to last for years based on model to model or manufacturer of these scopes. You might want to check it out, though, when comparing your choices. It will also help to read reviews to check the feed backs of users on the longevity of the Tritium.

But according to one source, the illumination can have a usable life that can last between 10 and 15 years. There are also versions that have an additional daytime illumination in the fiber optic light pipe.

So, at the end of the day, the answer to this question can vary. There are ACOG scopes with tritium that can last longer than the others do. Again, it will help you are reviews for what customers are saying.

How much does it cost to replace tritium in ACOG?

The tritium is reliable to adjusts the brightness based on the ambient light, one of the best characteristics of ACOG sights for AR-15. However, you might also want to know how much it costs to replace the tritium in the ACOG. No one can be certain on the updated prices unless you have the same problem.

Some sources, however, revealed that it costs a few hundred dollars, but this has to do with the internal components that they will also replace, including the glass, fiber optic rail, prisms, tritium and other parts.

When you called the manufacturer, you can also tell them about other parts you need replacement for, such as the reticle installed. However, be sure to tell them what reticle type you want. If your tritium needs replacement, you must send the optics system in if it is dying out or dimming.

(Source: [1], [2])


The scope of an AR-15 is what you need for aiming at your target precisely even at a low lighting condition, so you can aim at it at low light. However, you should spend enough effort and time to compare your options well so that you can figure out the scope that can match your needs.

Our team is hoping that we’ve helped you find reliable iron sights scopes that fit your budget, deliver clear images, and made of high quality materials. Study your options well with a thorough comparison of the features that you’re looking for. Refer to the top 8 picks on the market and buy among the best AR-15 ACOG scopes today!

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