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6 Best ACOG Scopes in 2021 – Reviews & Top Picks

Last Updated on June 22, 2021

Modern-sniper-scope_SolidMaks_shutterstock

You know, up until the other day, we thought finding a good quality ACOG scope for a rifle was going to be a cakewalk. Well, it wasn’t. Even though we could tell the market is clearly flooded with scopes from different brands, finding the right one was like looking for a needle in a haystack. Except for the fact that our haystack was… ridiculously large.  

This made us think; If we’re struggling this much, what kind of hell will new users have to go through before finding The One?

So, do you know what we did? We decided to make magnets, and distribute them to everybody looking for the best ACOG scopes in 2021. Now, all you’ll have to do is bring the magnet to the haystack, and viola!

Have you gotten a magnet yet? Here’s one:

scope crosshairs divider 1A Quick Comparison of Our Favorites The 6 Best ACOG Scopes – Reviews 2021

Image Product Details
Best Overall
Winner
Trijicon ACOG 4 X 32 Scope Dual Illuminated Scope Trijicon ACOG 4 X 32 Scope Dual Illuminated Scope
  • Nighttime illumination
  • Fiber optics technology
  • Shock, fog, and waterproof
  • Best Value
    Second place
    TACFUN Prismatic Series 4x32mm Scope TACFUN Prismatic Series 4x32mm Scope
  • Tri-illuminated
  • Sufficient eye relief
  • Offers value for money
  • Premium Choice
    Third place
    Trijicon 4x32mm ACOG Dual Illumination Scope Trijicon 4x32mm ACOG Dual Illumination Scope
  • Fog proof
  • Compensates for bullet drop
  • Variable intensity reticle
  • CRUSHUNT 4x32 Scope CRUSHUNT 4x32 Scope
  • Wider Field of View
  • Bindon Aiming Concept
  • Chevron reticle
  • ohhunt 4x32 Hunting RifleScopes ohhunt 4x32 Hunting RifleScopes
  • Lightweight
  • Weaver-style rails
  • Rubberized matte black finish
  • 6 Best ACOG Scopes in 2021 – Reviews & Top Picks

    1. Trijicon ACOG 4 X 32 Scope Dual Illuminated Scope – Best Overall1Acog 4 X 32 Scope Dual Illuminated Chevron

    How’s this scope designed for tactical use? It has Tritium that illuminates the reticle for users looking to shoot at night, and some sort of daylight illumination offered by fiber optics. Also, because this feature was added to the design, the 223 Ballistic Reticle is now completely battery free. Meaning, you won’t have to keep checking your battery status whenever you’re doing your thing.

    The ACOG 4 X 32 Scope Dual Illuminated Scope is a non-adjustable magnification optic that comes with a power of 4x. To some users, this is a downer. But if you ask us, it’s actually a good thing. Why? Well, because anything that falls between the 4x to 6x ranges is ideal for a rifle scope.

    Long-range shooters will of course have a different opinion, seeing as they prefer shooting with a magnification setting of 10x or higher. And we’re all entitled to our own opinions. But guys, you still have to take into account the fact that this is a tactical scope. You need a low power because low equates into a wider field of view. And with a wider field of view, you get to stay on the target without struggling.

    Talking about the scope’s ability to stay on the target just reminded us of the Bindon Aiming Concept. If by any chance you find yourself wondering how the scope allows for quick one target acquisition, it’s because of this feature. Interestingly, that’s not even its main task. The BAC might take some getting used to, but once you get the gist of it, you’ll be able to keep both eyes open when stalking and shooting targets at close range.

    By now, you’ve probably heard different users talk about how the ACOG 4 X 32 Dual Illuminated Scope offers a bullet drop compensator (BDC) out to 800 meters. We’re here to confirm that’s true.

    We’re almost certain that you’ve also heard about how it’s been calibrated to use 5.56 cartridges, or how fast it feels at 50 yards. Another truth. What you probably don’t know is, you can only fully utilize this feature if the optic’s setting says it’s already at a zero, at 100 meters. But if it’s not, you’ll have to make adjustments. And once you do, they won’t change even after you detach the scope from the rifle.

    Before you ask, just know the answer is ‘Yes’. The ACOG 4 X 32 Dual Illuminated Scope has been designed with coated lenses. As a matter of fact, it’s because of the BroadBand Anti-Reflective coated lenses that all the images created are so detailed and crispy.

    You know, it just occurred to us that this is the first optic system that we’ve come across that has zero distortions. Remarkable, to be honest. It’s light gathering capabilities kind of makes it look like an alpha in the industry.

    What about durability, you ask? You’ll be glad to know the ACOG 4 X 32 Dual Illuminated Scope has a rugged aluminum housing. And the thing about aluminum is, even though it’s one of the lightest materials out there, it’s nearly indestructible. So, it’s safe to assume Trijicon knew what exactly they were doing when they decided to house this sighting system in the 7075-T6 aircraft aluminum-alloy.

    They were also kind enough to give us an 8mm exit pupil. And for those of you who don’t know what role an exit pupil plays, it determines the amount of light delivered to the eye. If the exit pupil is larger than 7mm, you’ll have more room to comfortably position your eye with respect to the optical axis.

    Sadly, there’s a downside. And the downside is, you might find yourself in a situation where the available light becomes too much for your eye to handle. This is a problem that most users complain about while using rifle scopes that have exit pupils with a diameter of 7mm and above.

    Good thing is, we’re not Debbie Downers. We don’t dwell on the negatives, but the positives. And one other positive that we’d like to add, is the fog proof, shockproof and waterproof feature. The ACOG 4 X 32 Dual Illuminated Scope is not the kind of rifle scope that will collect moisture the minute you put it down or while hunting in the rain. Also, it can handle any hard bump that you throw at it.

    Pros
    • Fiber optics technology
    • Nighttime illumination
    • Shock, fog, and waterproof
    • Adequate exit pupil
    • Durable
    • Zero distortions
    • BDc technology
    • BroadBand Anti-Reflective coated lenses
    • Decent magnification power
    • Wide Field of View
    Cons
    • Exit pupil diameter might be too large for some users

    2. TACFUN Prismatic Series 4x32mm Scope – Best Value2TACFUN Prismatic Series 4X32MM Scope

    First off, we just want to go on record as having said this is the best ACOG scope for the money. If you’re looking for a scope that will meet all your requirements while taking into consideration cost, quality, and sustainability, the TACFUN Prismatic Series 4X32MM Scope is that scope. Now moving on, the following features make it suitable for any tactical situation:

    For starters, it comes with a green fused multi-coated lens. And the science behind this feature is pretty simple. Magnesium Fluoride, which is a common Anti-reflective coating, is applied to the lens at a thickness of Lambda/4 (ƛ/4). Lambda is the heat conductivity ability of a material, and when applied at 550nm, you get to see that green color. Now, the goal of doing all that is to reduce the refraction index difference between the optic’s lens and the air surrounding it.

    “Why aluminum and not steel?”

    To be clear, we’re not saying that steel is a terrible material for a rifle scope’s tube construction. Both of them have properties or traits that come with several perks. However, gear makers do feel aluminum has an upper hand because it’s not only strong, but also lighter. Assuming you’ve used scopes before, you surely understand how weight factors into all this.

    That being said, the TACFUN Prismatic Series 4X32MM Scope has been milled from aircraft grade aluminum. We’re pretty sure you’ll love the Mil-Dot reticle technology feature, often found on duplex crosshairs. If you closely look at the axis, you’ll see four tiny 0.25 mil diameter dots. Those dots are there to help you and other users estimate range. 

    How’s that possible?

    Well, courtesy of the Mil-Dot reticle technology, you’ll be able to figure out wind drifts at known ranges, calculate the approximate size of your target at a distance, and even determine the distance between you and the target.

    And that’s not all. While using a Mil-Dot reticle, compensating for bullet drop is also a possibility. But that doesn’t mean that it can be substituted for a BDC reticle, due to the fact that the latter can compensate for the gravity effect, while the former cannot.

    The TACFUN Prismatic Series 4X32MM Scope is a first focal plane rifle scope. In simpler words, its reticle will appear as though it’s increasing in size anytime you zoom in, and reduce in size whenever you zoom out. This is advantageous in that your stadia marks will always be relevant, since both the reticle’s magnification and view remain proportional. 

    In addition, it’s tri-illuminated—has blue, green, red illumination—and designed with an adjustable rheostat that you can use to control its brightness. Its 3.5-inch eye relief enables fast target acquisition and safeguards users from heavy recoil. Hence, no scope bite.

    What did we not like about the TACFUN Prismatic Series 4X32MM Scope? We felt like the company downplayed its glaring problem because when the reticle lights up, you’ll think it’s Christmas.

    Pros
    • Tri-illuminated
    • First focal plane Mil-Dot reticle
    • Sufficient eye relief
    • Green fused multi-coated lenses
    • Aircraft grade aluminum housing
    • Offers value for money
    Cons
    • It’s reticle is too bright

    3. Trijicon 4x32mm ACOG Dual Illumination Scope – Premium Choice

    We’ve over the years fallen in love with scopes that provide battery-free illumination, as they’ve proven to be some of the most versatile models for hunting and sports shooting. On top of that, the Trijicon 4x32mm ACOG Dual Illumination Scope has also been endowed with a variable intensity reticle, making it easier for the optic to show off its capabilities in unfavorable light conditions.

    You don’t even have to stress yourself when the lighting changes because its brightness adjustment is automatic.

    “Will the images be crisp and clear?”

    Look, it’s no secret that the Trijicon 4x32mm ACOG Dual Illumination Scope is a fixed scope, with a magnification of 4x. And even in that magnification, the images created are always bright, crisp, and very detailed. In fact, we’re the one who should be asking you, do you seriously think a brand’s flagship project would be a substandard product?

    Every lens used in its construction has some sort of coating. Some coatings are present to protect your eyes from the reflection, while others are there to ensure light transmission is efficient. And to make the design standout, the Trijicon team in the kitchen added the Bindon Aiming Concept into the broth. With the help of this technology, you’ll be getting an exceptional line of sight even if you decided to use both eyes. 

    At this point, you’re probably wondering if it’s combat tested? But again, we’ll ask you this; do you think something made with 7075-T6 aircraft-aluminum-alloy needs to be tested? Because the Trijicon 4x32mm ACOG Dual Illumination Scope is, and that’s the one feature that defines it as a hard-wearing product.

    We also feel obligated to mention the nighttime tritium illuminate and the daytime fiber optic features that guarantee you’re not limited to the time of use.

    “What about the fogging situation?”

    Owing to the fact that it’s been plunged with nitrogen, it’s quite conceivable that it has what it takes to ward off moisture. The outer lens also comes with a protruding cap meant to protect it against any kind of hit that might compromise the system.

    Incidentally, hitting targets won’t be a problem, as its reticle has the ability to estimate and compensate for bullet drop. Even if the target is 800 meters out, you’ll still hit your bullseye every time. The eye relief is also adequate since users have always talked about how they feel safe while using the scope. 

    The fact that it comes with a lifetime warranty is a definite plus, considering consumers usually love working with products that guarantees them a worry-free purchase.

    Does it have any drawbacks?

    Yup. The only thing that kind of felt like a turn off was its price tag. We could obviously tell it’s a premium product, but as you’ve seen from the ones reviewed above, you can still get premium products that are cost-effective. And that’s why it dropped down in rankings.

    Pros
    • Daytime fiber optic and nighttime tritium illuminate technology
    • House by a 7075-T6 aircraft-aluminum-alloy
    • Fog proof
    • Designed with Bindon Aiming Concept
    • Compensates for bullet drop
    • Variable intensity reticle
    • Battery-free illumination
    • Automatic brightness adjustment
    Cons
    • Costly

    4. CRUSHUNT 4×32 Scope4CRUSHUNT 4x32 Scope Red Fiber Scope Glass Etched Reticle Real Fiber Optics

    Talking about the best ACOG rifle scopes in the market without even mentioning any one of CRUSHUNT’s products would be a cardinal sin. That’s because the company has often produced quality scopes, one of them being the 4×32 Real Fiber Optics Optical Scope.

    Did you know it comes with chevron reticles? A feature that has been highly praised and admired since it makes aiming and switching between targets pretty easy. And no, not all scopes have reticles designed to do this. Something that you’d know, if you’ve been in the game long enough to test different optics produced by brands. 

    The CRUSHUNT 4×32 Scope’s chevron reticle also serves a different purpose. Word on the street is some brands produce optics with reticles that get blurred out under adverse weather conditions. We’ve never actually used such a scope but it’s clear that CRUSHUNT has had to experience such. Or how else would you explain how this feature is capable of enhancing visual experience by eliminating that problem?

    The first ACOG scopes ever made were all fixed optics, came with a magnification power of 4x, and had a 32mm-objective lens. CRUSHUNT decided to work with those same specifications because they’re the reason why images created by such scopes were incredibly bright and detailed. Furthermore, the scope offers a wider field of view, thereby making it easy for the guy behind it to stay on the target.

    The 4×32 Real Fiber Optics Optical Scope is a high-strength aluminum alloy construction that functions without a battery. Its construction material is the sole reason why it’s durable, but the battery-free decision was made to ensure it remains cost-effective.

    CRUSHUNT borrowed the Bindon Aiming Concept from Trijicon, and added the technology to the optic to ensure it’s efficient for aiming. Therefore, even if you’re a newbie in the sport, the odds of hitting a moving target exponentially increases.

    What didn’t we like about the CRUSHUNT 4x32mm rifle scope? It has an eye relief of 1.5in, which is considerably less in comparison to what the market’s currently offering. But hey, at least you’ll be working with a scope that’s fog proof, shock proof, and has water resistance, right?

    Pros
    • Bindon Aiming Concept
    • Wider Field of View
    • A high-strength aluminum construction
    • Chevron reticle
    • Fog proof, shock proof, and water resistant
    Cons
    • Inadequate eye relief

    5. ohhunt 4×32 Hunting RifleScopes5ohhunt 4x32 Hunting RifleScopes Red

    The ohhunt 4×32 Hunting rifle scope is a weaver-style accessory. One thing that users always seem to forget is the fact that these types of accessories often fit any Picatinny rail. And that’s something that you need to appreciate because Picatinny rails never fit Weaver rails. You’ll essentially be getting two for the price of one, if you own two rifles with two very different rails.

    We only believe in scopes constructed using aluminum, and that’s the other reason why the ohhunt 4×32 Hunting RifleScopes made it to the list. As explained before, it’s the reason why the scope is lightweight, exudes strength, and resistant to wear and tear.

    The Rubberized matte black finish full metal casting plays two roles: it protects the optic from any external shock that might compromise the system, and reduces reflection. And speaking of reflection, its lens has an anti-reflective coating that allows efficient transmission of light.

    With an exit pupil diameter of 6mm, the ohhunt 4×32 Hunting RifleScope allows just about the right amount of light to illuminate the images created. Anything bigger than that is definitely disadvantageous, since it will allow too much light to pass through, consequently destroying the whole consumer experience.  

    You’ll also be provided with a field of view of 10.6m at 100 yards, making it easy to acquire a target and stay on it. As expected, the scope’s reticle is illuminated and automatically adjusts itself, depending on your surroundings and availability of light.

    Friendly reminder: Always confirm the size of the product inside the box before making the purchase. We noted the size on the description box isn’t always the same as the size of the actual product inside.

    Pros
    • Weaver-style rails
    • Lightweight
    • Rubberized matte black finish
    • Anti-reflective coating lenses
    • Decent exit pupil
    • Wide Field of View
    • Self-adjusting illuminated reticle
    Cons
    • Product description size is sometimes wrong

    6. CL-SPORTS Alrebeto ACOG Scope6CL-SPORTS Alrebeto ACOG Type

    You know the one thing that we loved about this scope was how it tracks light. Even if you’re running around in ambient conditions, you’ll still get a clear, detailed image. How is it capable of doing that? Credit goes to its wide lens, and the fiber optics technology. Together, these two features have made it possible for the scope to deliver optimal experience, and hence play in the big leagues.

    The other thing that’s rarely talked about is the chromatic contrast principle that the CL-SPORTS Alrebeto ACOG Scope works on. With the help of this optic, you can easily distinguish your target from its surrounding by limiting the luminous intensity of your reticle. And in case you’re still having trouble understanding what that means, it simply means you’ll be getting a clearer pinpoint vision. Also, the reticle is double illumination, so if you don’t like working with green, you can always switch over to red.

    The accuracy of every shot you make will be unrivalled, thanks to the CL-SPORTS Alrebeto ACOG Scope’s unique way of estimating wind and elevation. Unlike the other so-called “top-tier” scopes, it’s been designed with click wheels that are remarkably precise, and turrets that you’ll find easy to handle.

    In the field, we felt like this was a scope that could be relied on, taking into account the general performance of its parallax correction and tuning adjustments. Needless to say, it made the whole experience worth every dime spent on it.

    The CL-SPORTS Alrebeto ACOG Scope also defines versatility. And that’s something that you’ll realize once you learn that it can be used in short, medium, or even long-distance shooting. long story short, if the target can be seen, it can be clipped. 

    Is it hermetically sealed? Yes. The scope will never let you down or even malfunction in a moist environment. And you can tell this is something that CL-Sports really thought about because its system is plunged with more than enough nitrogen. Those gas particles will definitely make it hard for anything to condense on your lenses, and therefore, guarantees sharp images.

    By the way, if you’re one of those users who’ve used it before, have you noticed it’s resistant to shock? Yeah, we did too. And we’re pretty sure the aluminum tube has something to do with that. Aluminum has proven to be a really good construction material, and we’re happy manufacturers are slowly coming to that realization. It makes this product light, and increases its shelf life.

    For those users who are always so hung up on eye safety, the CL-SPORTS Alrebeto ACOG Scope heard your cries. Its eye relief is well calculated, and prevents the weapon from ever getting into contact with your brow during recoil.

    We’ll finish off this review by talking about the anti-glare reflective coating feature and the fact that it doesn’t run on battery power. Assuming you’ll be spending most of your time shooting in the sun, the coatings on the front part of the optic’s lens will ensure you don’t feel any sort of discomfort caused by the sun. Oh, and before we forget, the device has a matte black finish that deals with the issue of the reflection.

    Not running on a battery is actually a plus because that means you won’t have to run to the store every other day, looking for quality batteries to replace the old one. Also, it’s a way of reducing the overall weight of the device.

    Does it have a flaw? Yes, the fiber-optic feature might let you down because it doesn’t pick up enough light all the time.

    Pros
    • Battery-free
    • Has a matte black finish
    • Anti-reflective coating lens
    • Adequate eye relief
    • Aluminum construction
    • Fog proof, shock proof, and waterproof
    • Can be used on any range
    • Chromatic contrast principle
    • Fiber optics technology
    • Reticle is double illumination
    Cons
    • Malfunctioning fiber optic feature

    See Also: Red Dot vs ACOG Sights: Which Is Better?

    scope crosshairs divider 1Conclusion

    Folks, that’s all we had for you today. But as always, we’ll remind you to check out our top pick, which is the Trijicon ACOG 4 X 32 Scope Dual Illuminated Scope. But if you’re looking for a scope that offers value for money, we’d recommend the TACFUN Prismatic Series 4X32MM Scope. The Trijicon 4x32mm ACOG Dual Illumination Scope is also an incredible scope, but you might have to break the bank with that one.

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    Featured image credit: SolidMaks, Shutterstock

    About the Author Robert Sparks

    Robert’s obsession with all things optical started early in life, when his optician father would bring home prototypes for Robert to play with. Nowadays, Robert is dedicated to helping others find the right optics for their needs. His hobbies include astronomy, astrophysics, and model building. Originally from Newark, NJ, he resides in Santa Fe, New Mexico, where the nighttime skies are filled with glittering stars.