Holosun 507K Mini Red Dot Sight Review

If it is 2015, most of you don’t know who Holosun is. That’s right! They just started their establishment in the weapon sight those days. 

Only a few people know about their products because of their budget price. After all the ups and downs, now Holosun is one of the companies that produces a large number of red dot and mini weapon sights in the market. Holosun always scores when size matters. 

Indeed, size matters especially when you are carrying a weapon. No one wants a huge and bulky gun accessory to carry because they can worsen the conditions in such cases. 

Whether it is guns or accessories for guns, we also stick to lightweight and compact designs. But you can’t always find one like that. 

For instance, If you were looking for a mini red dot for your handguns or pistol, the choices for you are very limited as you may be looking for a lightweight, compact, and pocket-sized red dot. 

Well, that will not be the case anymore, Holosun understood the conditions and solves the issue with their pocket-sized 507k Mini Red Dot Sight for concealed carry following the footprint of Shield RMSc who is the initiator of creating pocket-sized red dot sights.

Holosun 507k X2 Mini Red Dot Review

The 507K is small, compact, and lightweight yet powerful and performs well. Too many good things in a small package are what 507K is. 

Talking about the weight, this 507K X2 weighs just an ounce with 1.6 inches length, 0.98 inches width, and 0.95 height. They sell this saying 0.9 ounces without the battery. 

Quick Stats

  • Brightness Settings: 10 Daylight and 2 Night Vision
  • Length: 1.6 inches
  • Width: 0.98 inches
  • Height: 0.95 inches
  • Window Dimensions: 0.58 x 0.77-inches
  • Weight: 1 ounce
  • Battery: CR1632
  • Battery Life: 50,000 hours

It has a 0.58 x 0.77-inch viewing window which is relatively fair enough. The width of the sight fits most of the handguns.

Holosun is made of 7075 T6 solid anodized aluminum housing in 507K X2 sight. The construction is durable and not at all weak, cheap, or flimsy. We could not find any flexing, flaws, or rattling in the first impression.

Installation is very easy and simple that happens within a few seconds. The loss of factory rear sight is not an issue because of the integrated backup sight that the Holosun comes up with.

Holosun 507K comes along with two reticle systems, you can choose between circle dot and dot only reticles. It is flexible and easy for anyone to change the reticle even if it is their first time with Holosun.

It uses a CR1632 battery. The battery tray is convenient to open and close. The battery works for 50,000 hours unlike the rest of their optics. The 507K does not have a solar backup. 

With this mini red dot sight, you get 10 daylight settings and 2 night-vision settings. So, Holosun 507K X2 Red dot is a perfect sight for day and night shooting.

Why is the Holosun 507K the Best?

As of now, Sig Sauer, Glock, Walther Riton, Shield, and Swampfox are producing the pocket pistol-sized red dot sights. But, how does Holosun beat all of them in the first place?

Keep reading to know!

The first thing is their construction, unlike other competitors, Holosun creates 507K sights from solid aluminum materials while most of the competitors mentioned above are made in Polymer.

The next thing will be the durability of 507K. As the red dot has a solid durable aluminum housing, it is durable to work in different weather conditions without the risks of corrosion and damage.

Another thing is their side-mounted battery compartment which avoids the need for removing the optic from the weapon to replace the batteries. To remove the battery, you need to just unscrew, replace, and tighten it.

Their multi-reticle system might be another reason. Holosun 507K offers a simple 2 MOA dot, a 32 MOA circle, and a combination of circle and dot.

The 507K has an ergonomic design with two control buttons unlike most of the competitor sights with one button or automatic controls. To attain the needed brightness level, you no need to switch through every option in the optic to go to the starting point, you just adjust back them as needed.

How Holosun 507K Performs at Shooting 

Let’s talk about their performance in their playfield. First, we checked the optics by zeroing down at 10 yards. For the concealed carry pistol 10 yards is very high. The zeroing at 10 yards made us reach 25 yards without taking any extra effort.

While checking the sight at 10 yards, we could see how the optic goes off and in which direction it should be adjusted. 

Once we completed the setup and directed on target, it began to rock.

Big Dot Reticle

To check the reticle, we started at 10 yards and focused on presentations. We used a big 32 MOA circle and dot reticle which comes in handy. It is a great option for those beginners out there.

The same applies to sight tracking between the gunshots also. That big red dot is present all the time and does not go away from sight. 

The big dot always helps you hit on the target for most concealed ranges say like 0 to 25 yards.

Tested at Different Ranges 

We decided to change the range so we moved off to 5 yards and changed our target from man-sized papers to the desk of steel pieces. The rack steels included 4, 6, and 8-inches targets.

At first in the 15 yards range, it was easy for us to get each steel target. Again the big dot makes it easy to attempt the rapid shots from at chests to the 100% clear headshots in the paper.

Then at 20 yards, the performance of the sight is the same and great. Later at 25 yards, it was not that easy. Using a sub-compact pistol to hit a 4-inch steel target at 25 yards is without any doubt made by bones. Still, with a red big dot, it was possible to get it every time. 

For us on average, it took 4 seconds between small to large changes, and for large to small it took 3.6 seconds. I’m pretty sure, we can’t do the same with irony sights.

Alternatives of 507K X2 Red Dot Sights

Holosun optics are rewarded for their reliability, durability, and professional-grade build. In addition to these great housing, Holosun mini red dot sights have come with a box of extras that attracts users. 

In that line, there are two more little fellows that work exactly or greater than 507K, namely 507C and 509T. These three have more similarities and few differences in a good way.

More than the alternatives, we could call them the siblings of 507K. These 507C and 509T have differed one major features from 507K which is the solar back panels, unlike 507K. So, when you are out of battery, your mini optic still works by inhaling the energy juice from the Sun. 

Sounds like a pro backup, doesn’t it?

Let’s dive into the amazing features of these Holosun mini red dots.

As we have already seen, great optics with powerful features make sense only when they are built well. 

In such a case, some of the Holosun red dots are made of Titanium material which is great because the end product will be strong and lightweight. Red dots made of Titanium have always topped the rows of other weapon sights.

Another important and most user-concern feature you could find in these red dots is their Automatic shutoff, everyone knows what it is. It preserves the battery life of the optic by automatically turning it off after a certain period of inactivity and going back to work with a little press.

Different reticle options are the next amazing thing to talk about Holosun mini red dots. The red dots come with both small dots and big red circles. The big circle reticles help people with astigmatism.

The last one would be their smart idea of having a battery compartment on the side. This idea clearly shows how they work at the user’s convenience. By having a side-loading battery, you do not have to remove the optic from the rifle to swap the batteries.

It still makes me think how Holosun managed to get every little or big smart thing into a tiny 1-ounce package so well.

Holosun 507C V2

The Holosun 507C V2 is the first mini red dot that surprised everyone out there with its outstanding features and performance. It made the people stick to Holosun despite the popularity of Trijicon RMRs.

To be honest, this Holosun 507C attracted 9 out of 10 people towards it, fighting most of the long-time champions.

Quick Stats

  • Brightness Settings: 10 Daylight and 2 Night Vision
  • Length: 1.78 inches
  • Width: 1.24 inches
  • Height: 1.54 inches
  • Window Dimensions: 0.63 x 0.91 inches
  • Weight: 1.5 ounces
  • Battery Life: 50000 hours

With 507C, you will get three reticles including 2 MOA dot, 32 MOA circle, and a combination of 32 MOA circle and 2 MOA dot. These reticle options opened many possibilities.

Using a 32 MOA circle reticle at close to 15 yards is missing nothing. It was easy to see and catch the targets. The 32 MOA reticle works great with traditional shotgun distances.

It is very easy to mount and demount. The tactile buttons are easy to access and responsive.

To conclude, the Holosun 507C V2 mini red dot is an ideal choice for different types of handguns, shotguns, and rifles.

Holosun 509T

Holosun 509T is another big brother of 507K though it is the latest. The 509T gained popularity and made a terrific sale in a short time.

The enclosed emitter design with the strong Titanium housing made 509T standout in their family of mini red dots.

Except for ACRO, the 509T from Holosun is the second mini optic to have an enclosed emitter design for pistols.

Quick Stats

  • Brightness Settings: 10 Daylight and 2 Night Vision
  • Length: 1.61 inches
  • Width: 1.21 inches
  • Height: 1.35 inches
  • Weight: 1.72 ounces
  • Window Dimensions: 0.66 x 0.9 inches
  • Battery Life: 50000 hours

The above two mini Holosun red dots, 507K and 507C have exposed emitters.

The fuss about exposed emitters is they are endangered to sand, water, snow, and mud. Rarely, it made it hard to see the dot on the lens.

While an enclosed emitter does not at all allow anything between the lens and emitter. It works the same in snowy, dirty, and muddy places. Now, the Titanium housing remembers its contribution to bringing out this level of durability even at worst weather conditions.

The optic has a Trijicon RMR adapter to fit on slides and mount RMR. There is also a place designed for the Glock MOS system if you need it.

Primarily, 509T is the pistol optic, but after the review, we could say that it is an outstanding option for PCCs and braced sub-compact guns.

I recommend any Trijicon users combine this 509T with RMR for a compact and lightweight optic option for serious shooting.

The 509T has only two reticles such as 2 MOA dot and 32 MOA circle. Both options are fit for long target precision and close-range hunting.

In close-range shooting, speed is more important than precision. Also, the 509T is great for its speed. When you use 32 MOA reticle at close range, you get on target quickly.

For a little long-range like 50 yards, you can use 2 MOA dot to even shoot the small targets that are not more than 5 inches.

No doubt 509T is intended for pistols, still, it works like a beast on PCCs.

In a Nutshell

Indeed, adding a red dot to the pistol will fill the skill gap between you and your game. Hitting targets less than 5-inches using any irony sight is not possible without wasting your ammunition. Instead, you can just use this Holosun Mini Red Dot and hit hard on the targets.

We have seen many benefits and advantages of using a Holosun’s 507K red dot sight and its other optics 507C and 509T, one more to add to that list is that a red dot sight on optic prevents sight radius problems and makes you a winner even with sub-compact pistols at a much lower price.

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