Essential Things About The Best Red Dot For AR 15 You Need To Know

There are some great things and advantages that red dot sights can bring to a shooter’s life whether in combat, hunting, and even competition activities. Speed and accuracy are just two of these many advantages that red dot sights promise to its users. Thus, it is always best to know the proper use and techniques of this equipment. Most importantly, it is best to pick the best red dot for AR 15 to be able to maximize its potential fully.

This article is set to provide you the essential tips on choosing the best red dot sight for the money for you to improve your shooting skills and experiences. We have provided you the necessary information you need to know to be successful in this venture, and we have also reviewed the top red dot sights for AR 15 available in the market today. So, read further and continue expanding your knowledge in this exciting field.

**Below, you'll find our more detailed reviews, but you can also click the links above to see current prices or read customer reviews on Amazon.


Factors To Consider

Since there are a thousand other choices in the market today, it is best to know what to look for in a red dot sight, so you will not regret buying something which is not at par with your other equipment or does not meet your needs. Read the following section as we introduce to you the factors which you need to know before buying a red dot sight.

Reticle Or Dot Size

Reticle Or Dot Size

The principle should be, the larger the reticle or the dot is, the better. This is especially true since red dot sights are very ideal for active hunting and shooting experiences which require for you to find the target the soonest possible time. Thus, the larger the dot, the quicker the shooter can search for and shoot their target.

Red dot sizes are different from sight to sight while there are also sights which allow adjustments with the sizes. It is always wise to consider the available space in your firearm and the size of the reticle which you prefer in accordance with your shooting needs and purposes.

Red dot sights are preferred by most hunters and shooters as the hit percentage is a lot higher compared to other sights. The size of the reticle should be the first determining factor as it is critical especially for fast shooting.

Battery Life

Red dot sights are battery powered and the longer they can be of service to the user, the better and more efficient it would be. Thus, choose the one that could serve you for a longer period and can withstand cold weather conditions as this drains battery power quickly.


The ability to co-witness is also vital when choosing a red dot sight. This will let you see and use your iron sights together or in replacement of the red dot sight. With this being said, you should also consider getting the most appropriate height since this is the key to this vital factor.

Night Vision Compatible

It is also very essential to consider choosing the one which is compatible with night visions as this will be very necessary especially for those hunters who prefer to camp out for days and nights.


Price ar 15

Plinking shooting may not require expensive red dot sights. However, for serious shooters and avid hunters out there, it is best to know that red dot sights do not come at affordable prices as the price goes hand in hand with quality. There are best red dot sights for AR 15 under $200 in the market, but one should expect that it may not do well in withstanding recoil beyond .22.

So, upon deciding on getting a red dot sight, you also have to decide how much you are eager to spend and if you need it. This is where the “knowing your shooting purpose” comes in as it will determine whether you need one or not.

Now that you have the fundamental knowledge as to what to look for in a red dot sight, you are now more equipped to purchase your preferred red sight. Now, let us introduce you to the top five best red dot sights in the market today to narrow down your choices further.

Here are our Top Best Red Dot For Ar 15 Reviews

**Below, you'll find our more detailed reviews, but you can also click the links above to see current prices or read customer reviews on Amazon.


C-MORE Systems Railway RED Dot boasts its ultimately bright red dot that can be adjusted in various levels according to the user’s preferences. This is very important as it permits the user to modulate the dot to a setting which he finds comfortable and suitable to his shooting capabilities.

Its size and weight are very appropriate for other equipment and provides ease to the user as it does not add extra weight on the things which he needs to carry. These factors are crucial to consider since it decreases the pressure and other things which the user needs to worry about.

It offers two (2) mounting cross bolts that ensure stability and accuracy. This is one of the edges of the C-More Systems Railway compared to other brands which only comes with one cross bolt feature that leaves a side to side wobbling and accuracy. It also works compatibly in most Picatinny in the market. It can also work with night vision optics.


  • Offers various dot sizes
  • Highly durable and one can ensure longevity provided by the aluminum body
  • Lightweight
  • Compact size making it convenient to carry around
  • Numerous adjustments on the dot
  • Increases shooting accuracy through the two mounting cross bolt features
  • Has 2-night vision settings


  • Costly
  • Does not use AA/AAA battery system

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Vortex Optics Sparc II 2 MOA Red Dot Sight  - Best Red Dot For Ar15 Under 200


The Vortex Optics Sparc II 2 is an upgrade to your standard red dot sight with x1 magnification capabilities. This allows the equipment to be up and ready to be used with an AR15 and ensures the user that there will be no additional weight as there is no extra magnification required.

It boasts its bright red dot display even in daylight making it very reliable anytime of the day. This feature makes it very dependable for hunters and shooters who need to visibly see the red dot to ensure accuracy and guarantee success.

Also, this is capable of performing for three hundred hours at a maximum level of brightness and 5000 hours when used in the lowest light level. It also auto shuts down in 12 hours straight usage which extends the life of the battery longer.

Vortex Optics Sparc II 2 is capable of protecting itself from harsh conditions since its O-ring can prohibit dust and dirt from penetrating the entire system. It is capable of withstanding and resisting wet conditions.


  • Strong-built ensures durability
  • Quick MOA adjustment
  • Compact and lightweight
  • Works fast and allows the usage of two eyes open
  • Bright LED Red light
  • Clear glass which is free from fogging
  • On and off power button are easy to use and secured from accidental push


  • Red dot is not good for those with astigmatism
  • Windage cap and battery cover are awkwardly located
  • Requires an allen wrench to use or remove the base

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Aimpoint PRO Patrol ensures the accuracy of shooting even at various distances. It comes with a very innovatively designed mount. It has a rubberized cap keeper which also connects the battery cover and the adjustment turret covers. This is very essential as it ensures you to keep your caps whenever you are faced with other relevant circumstances when hunting and shooting.

It offers ten brightness adjustment settings intending four adjustment settings for night vision options. This particular feature is very helpful to its users as it will allow them to adjust it according to your preferences and ease. Aimpoint Pro Patrol also takes pride with its ability to hold zero which could be very vital especially to experienced shooters.

Aimpoint PRO Patrol is reliable and dependable in any battle conditions as it features water resistance capability up to 150 feet. It can also withstand dust, dirt and any debris from entering the entire system making it able to last for years.

Its lenses are fully protected and are designed to not get any fingerprints on them. It has fully coated lenses with dry gas that prevent moisture inside and prohibits fogging inside.


  • High quality of the lenses
  • The battery can last for three years even when it is turned on 24/7 without battery replacement. It is economically friendly as it can save energy excellently.
  • Can be used even when the covers are on.
  • Comes with a large tube that makes an acquisition easier.


  • Oversized tightening knob
  • Thick body and bulky
  • Expensive
  • Small sight window

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Trijicon RMR 6.5 MOA offers an adjustable brightness setting making very convenient for the users like you to adjust it according to your preferences and shooting needs. These eight brightness settings include 1 super bright setting and two night visions. This feature makes the Trijicon RMR a convenient piece in any condition as you can easily find the suitable brightness style according to the situation and needs. One notable thing about these adjustment buttons is that they are easily adjustable and very accessible.

It also offers a strong nature to all its users as it is made of aircraft aluminum-alloy which diverts the impact far from the lens and ensures protection and longevity. This is one of the most important features of the Trijicon making well-appreciated and loved by most shooters and hunters out there since they can take their sights anywhere regardless of the harsh conditions and rough terrains which these sights are going to be exposed to.

Trijicon RMR sight also has a genuine multicoated lens that adds to the creation of a wide-band light broadcast without substantially changing the color of the target. It can be easily adjusted without the aid of other special tools and can provide the user quickly with 1 MOA per click.


  • Auto adjustment in brightness
  • Battery life is reliable and is true to its promise of 4 years
  • Quick target acquisition
  • Easy zeroing of the dot
  • Features auto-dim
  • Well-built
  • Great design


  • Tedious way of changing the battery since you have to remove the optics
  • Expensive

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Burris 300234 Fastfire III speaks of versatility and durability regardless of the outdoor condition and challenges. It is made for ruggedness and rough use as it is made of high quality and durable materials which also ensure its strength and durability. It can withstand the challenges of nature and of active action in the shooting field.

One of the best things about this sight is that it also offers wind age and elevation adjustments and upgrades. It also features three brightness adjustments and automatic brightness settings which adjust itself according to the light condition of the current environment. Its battery is strategically located in a place which allows you to conveniently access the battery if the need to replace it arises. It also has a battery indicator making it very convenient for the shooter to prepare for their future trips.

Burris 300234 Fastfire is waterproof and shockproof ensuring longer use and service to its users. You do not need to worry about the durability of your equipment since they are capable of withstanding abuses and other unexpected incidents making you enjoy your hunting session to the fullest.


  • Can be easily installed and mounted
  • Holds zero well
  • Compact size
  • Lightweight
  • Highly durable
  • Comes with a functional sun shield or cover


  • Button is not very tactile and needs to be pushed thoroughly to get the settings right
  • May have adjustment issues
  • Not recommended for those with astigmatism

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The Final Judgment

C-MORE Systems Railway Red Dot Sight with Click Switch is undoubtedly the winner among the five brands we have reviewed above. Basing from the features that it can offer to the users, it has a lot of benefits which could greatly create an impact to your shooting experiences. It may be a bit expensive compared to other brands but its practicality will be felt in the long run as it is proven to last for years instead of purchasing a less costly one for a year of use.

This buying guide aims to give you ease as you take your shooting venture to the next level. We are very confident that with the knowledge which you have gained from this article, you are more than ready to take your first successful shots!

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