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  4. Holosun AEMS Review: A High Quality Reflex Sight [2023]
Holosun AEMS Review: A High Quality Reflex Sight [2023] preview image
Jul 30 2023
7 min read

Holosun AEMS Review: A High Quality Reflex Sight [2023]

Holosun AEMS GreenHolosun AEMS


I’ve been a fan of Holosun’s pistol red dots for quite some time, as I’ve found them to be a nice balance of quality, reliability, and aesthetics. So, when the AEMS (Advanced Enclosed Micro Sight) came out, I knew I had to snag one for one of my ARs and write a Holosun AEMS review.

Well, life happened, and I didn’t get around to it until just recently. Thankfully, GunMag Warehouse had the green dot AEMS in stock and could get it to my door quickly for this review.

holosun aems mounted on springfield saint edge
My new Springfield Saint Edge was a perfect match for the AEMS.

Holosun AEMS Review

Holosun AEMS Green


Reticle2 MOA Dot and 65 MOA Circle
Reticle ColorGreen
Magnification 1x
Power SourceSolar and Battery
Battery TypeCR2032
Battery Life50,000 Hours
Brightness Settings8 DL and 4 NV
Window Size1.1 Inches by 0.87 Inches
Weight3.9 Ounces
Housing Material7075 T6 Aluminum
Adjustment per Click0.5 MOA
Parallax FreeYes
Unlimited Eye ReliefYes

Pros & Cons

  • Solar Failsafe and Shake Awake technology        
  • Multiple reticle options
  • Durable – T6 aluminum housing and IPX8 submersion rating
  • 50,000 hour battery life
  • Pricey – but you get what you pay for
  • Looks bulkier than it really is
  • Proprietary footprint makes it incompatible with many mounts

First Impressions and Testing

I couldn’t wait to hit the range with the AEMS once I got it. Right out of the box, I noticed how large and clear the viewing windows were. The green reticle is very sharp and easy to pick up in any light setting. As usual, Holosun included its nifty little multi-tool that made mounting it an easy task.

holosun aems boxed
Sometimes great things come in small packages!


Trust me, I wish I had already put thousands of rounds down range with the help of the AEMS, but I’ve only sent about 400 so far. While that’s a rather “small” sample size compared to what it will wind up seeing, it held zero perfectly fine and I didn’t notice any loosening of the optic itself once it was mounted.

It got a bit wet during one of my range sessions, but with the IPX8 rating, I wasn’t worried about it. Now I see; I was right to not worry.


Of course, to an extent, the optic can only be as accurate as the gun it’s mounted to, and vice versa. I had access to a 25 yard and 100 yard range since I got the AEMS, and I had no problem out to 100 yards ringing the range’s 12” gongs consistently.

I also found it very easy to transition between targets at varying distances and acquire them quickly each time. For 100 yards and closer, I’ll definitely be keeping the AEMS as one of my go-to options. It’s not meant to replace a long-distance scope, but I wouldn’t expect it to.

Overall Feel

Since you’re not going to be sitting there feeling your optic for hours on end, it doesn’t need to be super ergonomic and comfortable, but you don’t want it to be a pain to handle either.

Even though the AEMS is a decent-sized “square,” the edges are rounded, making it comfortable to handle.

The brightness adjustment buttons are rubberized and easy to manipulate. They seemed to work each time I needed to adjust brightness with no lag time. Overall, I was left with a sturdy feeling after handling and mounting the optic.


Solar Failsafe

One of the features that make Holosun stand apart from many others is its innovative Solar Failsafe technology. If your battery fails, which after time many do, the Solar Failsafe will kick in and use the natural light to keep your optic running.

In addition to saving you in a time of need, it also will change your brightness setting to match your current lighting conditions. The prepper side of me loves the idea of having the solar backup just in case.

holosun aems top level view
If the solar backup is not important to you, you can save some money and go for the AEMS CORE.


The more options, the better, in my opinion. The AEMS features a multiple-reticle system in which you can pick between a 2 MOA dot, 65 MOA circle, or a combination circle-dot.

Being able to change your reticle based on the distances you’re shooting at or the speed needed to move between targets makes for a very versatile optic. I’ve found myself running the circle-dot combination the most and would highly recommend it.

holosun aems green dot view
After alternating between reticles, the circle-dot combination won my vote.

Shake Awake

Many optics out there on the market feature some version of “Shake Awake”. Some people love it because it saves battery life by shutting off the LED during periods of no motion, while others don’t want to rely on it in a time of need and prefer an “always on” optic.

I can see both sides of the argument, but I tend to lean towards the shake awake. With the AEMS, I can’t raise my gun fast enough to beat the optic before it turns on.


As I mentioned earlier, the brightness adjustment buttons are easy to find in a hurry.. The windage and elevation knobs are also easy to adjust, and provide a 0.5 MOA adjustment per click. Thankfully, none of the controls are “too easy” where they seem loose or as if they will adjust with getting bumped.  

holosun aems side view
Even though the brightness adjustment buttons look to be rather flush, they are still easy to find in a hurry.

Other Features

There are plenty of other attractive features to note aside from the fancy and innovative ones mentioned above. Having clear flip-down lens covers is a nice change compared to many of the all-black solid ones that I’ve seen lately.

It also has a 50,000 hour battery life (that’s side loading by the way), eight-day light, and four night vision brightness settings, and a nice large window size.

holosun aems review side view 2
The flip-down lens covers are some of my favorites that I’ve used lately. I’ve actually found myself leaving them up half of the time.


Whether it’s your budget causing you to look at other optics, or the AEMS is simply not your style, here are a couple of other options to consider.



EOTECH pops up on many of the “best optic for XYZ” lists and for good reason. It has built a reputation for itself that has been backed by performance. You’ll get a 1 MOA dot surrounded by a 68 MOA ring in one of the most durable optics on the market. It’s even more pricey than the AEMS, but I have yet to hear of someone with buyer’s remorse with one.

Sig Sauer Romeo5

sig sauer romeo5

The Romeo5 is going to be my budget recommendation. Often found right around $125, you get a ton of bang for your buck. It comes with a simple 2 MOA red dot, but simple is not a bad thing in this case. You’ll get 10 brightness settings, motion activated illumination and it’s IPX-7 rated. It may fall into the budget category, but you probably won’t be able to tell when you use it.


Is the Holosun AEMS good?

Yes. After reading the article, do I need to say much more?

Is Holosun AEMS holographic?

It is not holographic; it is a reflex sight. We may just have to do a full article on the different optic types soon…

What footprint is the Holosun AEMS?

It features the proprietary Holosun AEMS footprint. This means you will not have compatibility with many of your other optic mounts.

Final Thoughts

While I haven’t conducted a torture test on the Holosun AEMS, I don’t have any reservations about its durability or keeping it on one of my main rifles. I can already tell that after I spend more time with it, I’ll like it even more. If you’re looking for a quality reflex sight with a ton of advanced features, I suggest you take a look at the AEMS for yourself.

Written by Ryan Domke
Ryan Domke photo Ryan Domke is a freelance writer, photographer, and social media consultant with a passion for guns and tactical gear. He works with some of the largest manufacturers in the firearms industry, allowing him the opportunity to continuously learn from and knowledge share with the 2A community. Ryan has contributed his writing expertise to numerous reputable publications, including Guns.com, Cheaper Than Dirt, Springfield Armory's 'The Armory Life,' Smith & Wesson's 'The S&W Bench', and The Mag Shack. When he’s not spending time with his family, you’ll likely find him at the range or starting a new DIY project.


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