ACOG sights have grown in popularity in the past few years and for good reason. They are a highly versatile scope that allows the user to shoot with fantastic accuracy in just about any condition you can put them in, there really isn’t a better scope out there today honestly. Telescopic sights also gained popularity in recreational hunting, especially with moving or distant targets. While there are other manufacturers in the market, Trijicon offers the best ACOG sight right now. Like anything else though, knowing exactly which is the best ACOG sight out there on the market can seem confusing and hard to find, so to help our readers out we have put together the top ACOG sight review that can help you save time and money finding the right scope for you. Below you will see our results and why we placed them where we did so keep reading below to check them out.


The Best ACOG Sight Review of 2019



What Does ACOG Mean?

ACOG stands for Advanced Combat Optical Gunsight and it is a group of telescopic sights manufactured by Trijicon. Originally intended for M16 rifles and M4 carbine, the company expanded its use to other firearms as well. These are issued in the US military and were obviously positively received there. Civilians now can also use ACOG for competitions, hunting, fun and of course for self-defense. Keep in mind that there are many different models made to suit individual user needs.

Most people think ACOGs use batteries but actually most do not use batteries to operate. Instead, you get an ACOG sight via internal phosphor from the radioactive decay of tritium. Some variants have fiber optic light pipe to match the light of the surrounding and your field of view.


What To Consider When Buying The Top ACOG Sight

As we noted earlier, ACOG pertains to a class of telescopic sights that cater different user needs. While we ensure Trijicon produces quality telescopic sights, picking the wrong unit will make things difficult for shooting. Here are the following considerations you must factor before buying an ACOG.


Objective Size

There is a general rule that the larger the objective, the more light it gathers and the more you can see your target. Nonetheless, there are telescopic sights that offer smaller objectives but have more powerful magnification.


Lens Coatings

All ACOG units should have AR coats in their lenses. There should be a colored hue that is reflected on the lenses’ face. This will help you shooting targets when there is too much light.



Trijicon guarantees their reticles to last for 10 to 15 years. Tritium’s radioactive decay is an energy saving alternative to electric batteries.

Note that there are reports of receiving knockoff copies of ACOG products on the internet. You will easily differentiate an original one from an imitation by looking at its serial number. This should be located at the top of the optic, eyepiece and the housing. Call the customer service to match the serial number to their inventory listing if you have any suspicions that your ACOG sight is a fake.

Trijicon’s name and ACOG must also be embossed on the telescopic scope you ordered. Lastly, you should also look for the tritium indicator near the eyepiece. If there is any of the three missing, it is best to immediately return what you ordered and demand a refund.


The Best ACOG Sight Review of 2019

Are you interested in mounting ACOG on your firearms? We provide an ACOG sight review below to guide you which model to buy. Check these out below.


1) Trijicon ACOG 4×32 BAC Riflescopes



Our first entry for the top ACOG sight device in our list is the humble ACOG 4×32. Its design is very simple making this very lightweight in exchange. It is only 5.8 inches long and weighs about 10.9 ounces. This fixed power optic is an excellent companion on AR like the R-15 by Remington. These firearms are gaining popularity, and its respective telescopic sight follows.

The body is made from aircraft-grade alloys that make this nearly indestructible. This is also waterproof up to 11 meters without the aid of the cap. Since it was originally designed for military purposes, its durability and strength are evident in its design.

ACOG 4×32’s bullet compensator serves a rangefinder and is helpful in estimating bullet drop. This telescopic sight allows a hunter to maximize the rifle’s range. The bullet drop estimation works for at a maximum of 800 yards. On the other hand, the reticle is illuminated by tritium. The lighting automatically adjusts based on the available light. Hence, it is the perfect ACOG sight for recreational hunting.


Our Take

Designed to be lightweight and for long-range shooting, ACOG 4×32 is the choice of recreational hunters. We also appreciated its plain design that does not attract much attention. Customer response is unanimous, giving this a high rating of 4.5 out of 5 stars on Amazon.

The tritium-based reticle is very convenient. While all ACOG units have this mechanism, you can make the best of it in ACOG 4×32. While we barely found shortcomings in this unit, be careful in placing an order online.

Since this is the most popular ACOG, it also follows that this is also the most counterfeited. We read complaints about buyers getting a knockoff and failing to get a refund since the return period has expired. Lastly, you may also find a slightly blurry crosshair but this is a known issue in all ACOG models.


2) Trijicon TA31RMR-G ACOG 4×32 Scope




While the BAC Riflescopes work best for hunting, this is the perfect choice for self-defense. This works best for close quarter combats. This is crucial when you are protecting your home as every shot counts. Quick action is needed, and you may not have the opportunity to shoot as much as you can. You may be able to aim better if the situation drags a bit but there is still a need to lock targets accurately.

Its design is a bit complicated but remains easy to use thanks to Trijicon’s intuitive ergonomics. ACOG 4 X 32 Scope Dual Illuminated Crosshair are two telescopic scopes in one unit. First, you get the powerful 4×32 lens. Mounted on the top is a smaller Trijicon Ruggedized Miniature Reflex (RMR) sight. It is a 1 power and holographic open sight.

This ACOG device uses a two-aiming procedure, coined as the Bindon aiming concept. The reticle locks a target with a red dot as both of your eyes are open and this is imposed over your vision. On the other hand, the lens mounted on the top is designed for rapid engagement. ACOG 4 X 32 Scope Dual Illuminated Crosshair .223 Ballistic Reticle is the top ACOG sight for self-defense.


Our Take

Customers are extremely happy with their experience. This is one of the rare units in Amazon that scored 4.9 out of 5 stars. We also felt the same since you get a versatile short-range scope that is normally available for a couple thousand dollars more. Thanks to the Bindon aiming concept, locking targets is an easy task.

This gives way for convenience since all you should do is to put the red dot on your target then pull the trigger. However, choosing a reticle color can be confusing as all options are included in the product description if you visit the Trijicon’s website. Do not hesitate to contact the company to get your preferred color.


Trijicon ACOG 3.5 X 35 Scope Dual Illuminated Crosshair .308




Accuracy, flexibility, and precision – these are the reasons why we put this ACOG at the top of our list. This is a popular choice in the AR platform, only second to the 5.56. This ACOG has a 3.5 fixed fiber optic with and a 35mm objective lens. This telescopic sight is designed to snugly place on flat on AR rifles and has a very long range up to 1,200 meters.

If the first two rifle scopes have specific uses, this one is a favorite in shooting competitions. Moreover, ACOG 3.5 X 35 is optimal for heavier rifles and for shooting short to medium range. It also follows the Bindon aiming concept, where both of your eyes are open and there is a red dot on the reticle to lock the target.

However, this riflescope also works in shooting long distance targets. It has the same traits of ACOG 4 x 32 in serving as a bullet compensator. You only need to place the hash mark on the target and pull the trigger. With its features that enable short and long-range shooting, we have no qualms on placing Trijicon ACOG 3.5 X 35 as the top ACOG sight out there today.


Our Take

We expected that this will perform like the first two entries and we are blown away by its performance. Locking targets for the first 300 yards is a breeze. Beyond that distance, you may still have a successful hit after considering factors like target size and the environment.

Customer response is also very positive, rating this 4.9 stars out of 5 in Amazon. On the downside, it also suffers from occasionally blurry crosshairs, but that is a frequent problem among Trijicon units.



Advanced Combat Optical Gunsight set a benchmark for other optic firms to catch on. Its durability, ease of use and precision made it a popular in the military and recreational hunting. Quality-wise, this is also one of the best optics in the market. It is just a matter of picking the right ACOG for your purpose. We hope our reviews help you.