If you’ve ended up finding this article, we assume you are already a fan of MK18. And now, you are looking for the right optic to enhance your shooting experience. Since the rifle is mostly used for its reliable and balanced construction, it can’t be just used with any red dots because it can leave you at risk of deteriorating shooting performance.
Hence, you need to find red dots which are also structurally reliable and balanced. Along with that, the reflex sights should be durable enough to withstand rough environments and heavy recoils.
We have done a bit of a discussion of key factors to check while buying a red dot in this article. So, if you are interested to know more about the factors, go through the buying guide given at the end of reviews.
Speaking of the reviews, the products that have been listed here are the most compatible optics available in the market. To purchase the right sight as per your shooting style and need, we will suggest you to read the reviews carefully. So, let’s begin!
Best MK18 Rifle Optics – [Editor’s Choice]
1. Holosun (HS515) Military Grade Micro Red Dot Sight
It is one of the most ruggedized micro red dots available in the market. The housing of the sight has been constructed from CNC machined 7075 Aluminum to ensure it can withstand rough environments and recoils. It has also been gone through the pressure test up to 30 meters for 30 minutes. Besides, the housing is designed to be snag free to protect the windage and elevation turrets.
The optic comes with a high quality CR2032 battery to support you in all shooting environments. In addition, the red dot has been featured with the Shake Awake technology that works to activate the reticle when the sight is in motion. It even helps to preserve the battery life by shutting the reticle while the sight remains idle.
To enable you to control the brightness level, the red dot is offered with 10-level manual brightness settings along with 2 night vision modes. However, note that the optic has only one MOA dot option such as a 2 MOA dot with a 65MOA circle reticle, so if you don’t like to use small dots, this product is not for you.
What accessories are offered with the optic?
The optic is offered with three accessories such as flip-up lens covers, kill flash, QD 2-PC mount. The flip-up lens protects the optic from dust and other outer harmful elements. Additionally, the lower 1/3 co-witness QR mount gives you better cheek position and clears over any iron sights.
Is it parallax free?
Yes, it is. Whenever you purchase a sight for your rifle make sure it is parallax free, otherwise you won’t be able to get a clear image of the targets.
What is the mounting footprint of the sight?
This sight has a T1 mounting footprint. So, if you want you can also install any aftermarket mount which has a similar footprint. However, these aftermarket mounts have a carved shape base, hence, the flash won’t fit in the base.
2. EOTECH EXPS3 Holographic Weapon Sight
This sight does come with multiple dot size options but we believe the EXPS3-4 which has 4 MOA dot with 68 MOA circle reticle will be perfect for your MK18. Because the 4 MOA dot size works really well in both short and long range shootings. Besides, the Quick Detach mount offered with the optic is made to fit on 1″ Weaver and MIL-STD 1913 rails, hence it makes it perfect to mount on the rifle.
The sight has night vision compatibility so that it can work with all Gen 1-3 night vision devices. Moreover, it has a manual brightness adjustment system to help you increase or decrease the brightness as you want. It also allows you to manually turn on or off the sight with these push buttons.
You will get a CR123 battery with the optic which can serve you up to 1,000 continuous hours at nominal setting 12 at room temperature. The company also provides a 10 years warranty with the product. So, it can be a good deal for you since it has a balance structure with all the necessary factors.
Does it have water resistance?
A good quality red dot always ensures it has wear or moisture resistance. By keeping it in consideration, the EXPS3-4 is designed to have a good amount of water resistant ability. It is submersible up to 33ft. or 10m depth.
Can it be used outdoors in a brighter light condition?
The optic can be used from a very low light to the brightest lighting conditions. However, you may notice that when you increase the brightness to the highest level, the reticle may get a bit fuzzy.
What is the eye relief of the optic?
It has unlimited eye relief. Always remember eye relief is an issue of the magnified optics and since it is not a magnified optic, it doesn’t have a problem in eye relief.
3. Aimpoint Micro T-2 Red Dot Reflex Sight
What you will love about the optic is its rugged construction and battery life. The sight housing is made of Aluminum to make it strong to endure heavy recoils from shooting. In addition, the red dot has been equipped with an advanced lens system which ensures better light transmission and unmatched optical clarity.
As it is important to have a high capacity battery with an optic for longer usability of the sight, the dot is offered with a high capacity CR2032 battery. It enables you to use the optic up to 50,000 hours (nearly 5 years) even if you use it on a regular basis.
Though it is available in only 2 MOA dots, it works really well for precise target acquisition from all distances. Moreover, there is a 12-level brightness setting with a one extra brightness option to use in bright sunlight. So, if longevity is what you are looking for, go for it!
Is it available with a night vision setting?
No, it doesn’t have a night vision setting. If you want, you can purchase a night vision sight that is compatible with this rifle. According to the company description, it is usable with all generations of night visions.
Does it come with a lens cover?
Lens covers are very useful to protect the optic lens from any potential damages. Hence, the product is offered with both front and rear lens covers.
Can you use aftermarket mounts with the red dot?
There are plenty of options for mounts which are designed by different aftermarket product manufacturers. We will recommend you to use “Scalarworks Aimpoint LEAP/Micro T-2 Mount” as it is highly compatible to use with Aimpoint Micro T-2 Red Dot sight.
4. Elcan Specterdr 1-4×5.56 Scope W/Integral A.R.M.S.
This is another hyped red dot, so much so it is even used by the U.S. special forces. It is mainly because it has rugged construction, magnification range and BDC reticle. This combination of features makes it a great choice for those who use their MK18 as serious CQB shooters and home defenders.
With the help of Raytheon technology, the optic is built into a sturdy accessory to be used with your rifle. Hence, It has the ability to withstand any impacts from drops, kicks and bumps. Besides, the 5.56 BDC reticle enables you to aim up to 1000 yards and also ensures you can change the aiming range as quickly as possible.
Additionally, its 1-4x magnification range comes really handy for the shooters with astigmatism. The optic even has 2.75” eye relief so that your eyes remain protected from injuries. All in all, it can be a desirable option for you, if military grade quality is your thing!
Can you use the optic for .223 rounds?
The rifles which are compatible to use with .223 rounds can use the optic on their rails. Since the MK18 is compatible with this caliber, you can mount the optic on the rifle.
What type of battery is included with this product?
Like we said before, it is essential that the red dot sights are offered with a high capacity battery to support the sight for a long time. As the optic comes with a high quality CR2032 battery, you can be rest assured about its longevity to work with the sight.
Do you need to buy flip-caps separately for the optic?
No, it is not necessary to buy the flip-caps separately for the optic. The company includes the flip-caps along with the product.
5. Vortex Razor HD 1-10x24mm Gen III FFP Riflescope
Looking for an optic for your MK18 that can aim at long range? If so, this is just for you! It has the magnification range from 1x to 10x and also 11 intensity levels to enable you make quick and precise target acquisition. In addition to that, the L-TEC tool of the optic ensures accurate adjustments of the turrets to aid you in the fast targeting. With this scope, you can aim more than 1,000 yards.
The tube of the Razor HD Gen III is made of Aircraft-grade Aluminum to make sure it becomes resistant against shock and wear. To get a clear image of the targets, it is essential that your optic comes with a high quality lens. Keeping it in mind, the optic is crafted with an HD optical system which delivers an exceptional resolution, color fidelity and light transmission.
Another good part of the lens is, it has anti-reflective coatings to minimize the visible signature. The unconditional life-time warranty, given by the company, is also something to be appreciated. Due to this you can use the optic without worrying any servicing cost.
What is the reticle type of the Razor HD Gen III?
The reviewed product has EBR-9 MOA reticles. But it is also available in different MRAD reticles and MOA reticles.
Does it come with night vision mode?
The optic is not designed to have night vision mode. But it has an 11-level dot intensifying system to make the dot brighter or dimmer.
Is there any accessory provided with the product?
The company provides a good amount of accessories which may come very handy for you. Following is the list of the items that are provided with the product:
- 2″ long sunshade
- Lens protectors
- Magnification dial lever
- Scope mount torque value warning card
- Lens cloth
- Hex wrench
- 2 CR2032 Batteries
Buying Guide Of Optics For Mk18 Rifles
Honestly, you can add points after points one can check in a red dot before buying it. But to avoid making the process overwhelming, here we have discussed the factors that mainly work to ensure the reliability and compatibility we expect from an optic.
The materials used to construct the sight housing and lens need to be really strong and durable. Otherwise, it won’t be able to endure the heavy impacts or recoils the rifle can produce. The lens of the optic also should come with multi-coatings to transfer maximum amount of lights through the glasses.
Without a high capacity battery, buying a red dot is a waste of money. Because the high quality batteries make sure you can use the sight for a longer period of time and in any given environment. Therefore, if you purchase a dot sight with poor quality battery, it won’t give you the support you will need while aiming at the target.
Normally a red dot manufactured for MK18 comes with a mounting plate. However, if it doesn’t come with one, you need to find a compatible mount to install the optic. We will suggest you mount the sight a bit forward from the middle portion of the rail. This way you will have enough eye relief to protect your eyes from injuries.
The larger MOA dots work better for short range shooting whereas the small dots are better for long range shooting. But it is not a fixed requirement, you can choose sights with a MOA dot you like.
The red dots are lightweight and can make as accurate and fast target acquisition as possible. So it has been popularly used and recommended to install on MK18 rifles for perfect aiming. As there are plenty of options in the dots, it can get tiresome to find the right one for your shooting purposes.
Hence, to reduce your work, you have brought you the best optics for MK18 that are available in the market. We have also included a checklist of key factors you should look at before buying the sight.
Hi, I’m Brent Hansford. A writer turned hunter & now sharing my love for the sport through writing. As I practically breathe weapons, I firmly believe I’m capable of providing you with new knowledge about firearms and hunting. My mission is to help more people get better at hunting & master the weapons. Let me help with unleashing the beast within you!