Aimpoint ACO Review [Updated 2024]

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Overall Score 7.6

Tested With Scoring System 2.0

Optical Quality
Durability and Build Quality
Weight and Size
Battery Life
Ease of Use

Learn How I Test & Score Here

⭐️ Verdict: Best for Professionals (7.6)

The 2 MOA dot, adjustable for various light conditions, and the promise of up to a year’s operation on a single DL1/3N battery, make it quite a catch. 

During testing, the Aimpoint ACO impressed with its clear glass and crisp dot, enhancing target acquisition.

The range of brightness settings proved useful under varying light conditions. Zeroing in was straightforward, and it held its zero admirably even after hundreds of rounds. 


Exceptional glass clarity

Durable, waterproof construction

Holds zero reliably

Wide range of brightness settings

Good battery life


Not night vision compatible

Slightly heavier compared to similar models

Red dot may appear fuzzy for some users (astigmatism)

Price Comparison

Available at 2 shops 
Optics Planet

Aimpoint, a brand known for top-notch sights, ventures into more budget-friendly waters with the ACO model. 

This product steps up with a 2 MOA dot, suitable for rapid target acquisition, coupled with 9 brightness settings for adaptability in various lighting.

It promises durability, ease of use, and a year-long battery life, all within a rugged, waterproof design.

It generally lives up to these expectations, but it’s not without its shortcomings. It lacks night vision compatibility and might be slightly cumbersome for those used to lighter models.

Performance Review of Aimpoint Carbine Optic ACO

1. Optical Quality

The optical quality of a red dot sight is paramount, and the Aimpoint ACO doesn’t disappoint in this regard. 

The clarity of the lens is commendable; it’s crisp and undistorted, enhancing target visibility. 

These features facilitate precision shooting, even at longer ranges, which is a significant plus.

However, it’s essential to note a few Drawbacks

The sight isn’t night vision compatible, which, although not a dealbreaker for daytime shooters, limits its versatility compared to some competitors. 

Additionally, the 2 MOA dot, while generally sharp, can appear fuzzy for users with astigmatism or eye strain, which is a common issue among red dot sights but worth mentioning.

Comparatively, the Aimpoint ACO holds its own against market competitors in terms of optical quality, especially at its price point. 

Its simplicity and effectiveness in bright conditions are impressive. Yet, the lack of night vision support and potential clarity issues for some users slightly mar an otherwise solid performance. 

From a personal standpoint, the sight has been reliable and precise in my usage, though the limitations are noticeable.

Score: 7/10

2. Durability and Build Quality

The Aimpoint Carbine Optic ACO’s durability and build quality are, frankly, what you would expect from a brand like Aimpoint: robust and reliable. 

In my time with this sight, I’ve put it through various conditions: rain, dust, and the occasional bump. 

It’s built from anodized aluminum, which not only gives it a sturdy feel but also ensures it can handle rough use.

The sight’s ability to withstand submersion up to 15 feet and its shockproof nature are impressive.

In comparison to others in the market, the Aimpoint ACO stands out for its toughness. 

However, it’s slightly bulkier and heavier than some of its competitors, like the Bushnell TRS-25. 

This added weight might be noticeable for those used to lighter models. 

Overall, its robust build quality overshadows the minor inconvenience of extra weight, making it a reliable choice for rugged use.

Score: 8/10

3. Weight and Size

When it comes to weight and size, the Aimpoint Carbine Optic ACO strikes a balance between being substantial enough to feel durable. 

Weighing in at about 10 ounces with the mount, it’s slightly heavier compared to some lighter models available in the market. 

While this does give it a solid and robust feel, it can be a point of consideration for users who prefer ultra-lightweight sights.

The dimensions of the ACO, standing at 2.2 inches tall and 4.8 inches long, make it a compact option, fitting well on most rifles without being obtrusive. 

In my experience, the size was never a hindrance; in fact, it added to the overall balanced feel of my rifle setup. 

The compact size doesn’t compromise the sight’s functionality or field of view, which is a significant plus.

It might not be the lightest or the smallest, but it offers a size and weight that feel “just right” for a sturdy, reliable optic.

Weight10 ounces (with mount)
Height2.2 inches
Length4.8 inches
Objective Lens Diameter38mm

Score: 7/10

4. Battery Life

The ACO’s battery life is a standout feature. With the promise of up to a year of continuous operation on a single DL1/3N battery, it sets high expectations.

In my use, it’s lived up to these claims admirably. Having used it for extended periods without the need for a battery change is a significant advantage, especially for those who use their sights frequently.

From a practical standpoint, not having to worry about constant battery changes adds a layer of confidence in the field. 

The battery compartment is easily accessible, making changes straightforward when needed. 

In terms of battery life, the Aimpoint ACO certainly delivers on its promises and stands out in its category.

Score: 9/10

5. Reticle

The 2 MOA red dot reticle of the Aimpoint Carbine Optic ACO is designed for quick target acquisition, and it excels in this regard. 

The dot is clear and distinct, making it easy to focus on the target. 

The range of brightness settings allows for adaptability in various lighting conditions, a crucial feature for any shooter who might find themselves in different environments.

However, it’s important to address that some users, particularly those with astigmatism or other eye conditions, might find the dot to be fuzzy or less defined. 

This issue is not unique to the Aimpoint ACO but is a common characteristic in red dot sights. 

While this doesn’t detract from the overall quality of the reticle for most users, it’s something to be aware of.

The crispness of the dot in optimal conditions and the ease of adjusting brightness contribute to an overall positive experience with the reticle.

Score: 8/10

6. Ease of Use

The Aimpoint Carbine Optic ACO scores high on ease of use, a critical factor in any shooting scenario. 

The fixed mount is robust and provides absolute co-witness with standard AR-15 iron sights, which is a big plus for rapid deployment. 

Adjusting the 2 MOA red dot’s brightness is intuitive, with 9 settings to cater to various lighting conditions.

However, the lack of night vision compatibility might be a limitation for some users, especially 

those who need a sight for low-light environments. 

Despite this, the Aimpoint ACO’s user-friendly design makes it a great choice for shooters of all levels, from beginners to more experienced ones. 

Overall, for someone who values a no-nonsense, reliable sight that’s easy to operate, the Aimpoint Carbine Optic ACO checks most of the boxes.

Score: 7/10

7. Price

When it comes to price, the Aimpoint Carbine Optic ACO strikes a balance between Aimpoint’s renowned quality and affordability. 

It’s a significant investment for some, but you get what you pay for a reliable, rugged, and high-performing optic. 

Compared to higher-end models in Aimpoint’s lineup or other premium brands, the ACO is reasonably priced, especially considering its features like waterproof construction, 10,000-hour battery life, and clear optics.

As a shooter, I appreciate the value for money this sight provides. 

It’s an investment in reliability and Aimpoint’s legacy of quality, making it a wise choice for those who want dependable optics without stretching too far financially.

Score: 7/10

Final Verdict

After thorough testing and consideration, the Aimpoint Carbine Optic ACO stands out as a reliable and robust red dot sight that offers excellent value for its price. 

Its standout features include a clear 2 MOA dot reticle, impressive durability, and a user-friendly design. 

The sight’s optical quality is commendable, providing crisp and clear visuals, though it does lack night vision compatibility. Its build quality is robust, made to withstand harsh conditions, and the weight and size strike a good balance between sturdiness and convenience. 

Overall, the Aimpoint ACO is a solid choice for anyone looking for a high-quality red dot sight without the premium price tag, making it suitable for both casual shooters and serious enthusiasts.


What is the battery life of the Aimpoint ACO?

The Aimpoint ACO offers a battery life of approximately 10,000 hours from its single DL1/3N battery.

Where is Aimpoint ACO made?

The Aimpoint ACO is manufactured in Sweden, ensuring high-quality construction and reliability.

whats the difference between Aimpoint Aco Vs Pro?

Aimpoint ACO is more affordable and lighter, while Aimpoint PRO offers longer battery life, higher durability, and advanced brightness settings including night vision compatibility.

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