Red dot sights are also known as an optical scope and can be used with other devices that aim to make your shooting more accurate and reliable.
The red dot produced by the sight is in line with the firearm used to help the shooter hit the target with higher accuracy.
Top 9 Best Red Dot Sights for AR15 Comparison
Here are the top 9 red dot sights for AR15 that you can find in the market today:
C-MORE Systems is known for two things, great rifle scopes and gun sights. If you are shopping for a red dot sight for AR15, I would recommend you check the list of C-MORE Systems gun sights first.
What is the best red dot sight for AR15 from C-MORE Systems then? If money is not an issue and you can spend a few hundreds of dollars, the Tactical Railway Red Dot Sight from C-MORE Systems is worth checking.
This red dot sight is available in different sizes of the MOA available and in different colors. The main body of this red dot sight is made of aluminum and the price ranges from $200 to $400 (click here for the prices). The C-MORE Systems Tactical Railway Red Dot Sight features a heads up display allowing user to have faster target acquisition.
This also features a super bright red dot that is adjustable depending on your eye’s comfort. It also comes with an adjustment for windage and elevation. The body of \ C-MORE Systems’ Tactical Railway Red Dot Sight is aluminum made. It has 12 click intensity switches for its brightness including the off option, 2 NB, 1 low light and 8 day light settings. This is best attached to the flattop rail of an AR15. This best AR15 red dot sight for AR15 just weighs 12 ounces.
AR15 is a powerful military and civilian rifle and comes in different style and length. Still, regardless of how powerful it is and how skilled the user is, the best AR15 red dot sight can still make a difference when attached to.
This is true especially if you are doing a long range shooting. For the AR15red dot sight from a known scope and lens maker like Trijicon, we have the 1×25 MRO 2.0 MOA Adjustable Red Dot. This red dot sight comes with a AC32068 full co-witness mount Adaptor plus a large viewing view. This red dot sight has a price tag of just a little over $500 (click here for the price).
The Trijicon 1×25 MRO 2.0 MOA Adjustable Red Dot comes with different brightness settings with an ambidextrous brightness control. This red dot sight is also waterproof of up to 100 feet, something that can be expected from a great provider like Trijicon. While some AR15red dot sight reviews say that a $500 red dot sight is not practical, with Trijicon, you can always view it as an investment that you can use for a lifetime making it the best red dot sight for AR15.
The next item on our AR15red dot sight reviews list is the M4 2 Minute of Angle ACET CompM4 Sight from Aimpoint. This red dot sight has a price tag of less than $1000 (click here for the price).
Aimpoint has been producing a series of top notch scopes and red dot sights and this is one of their newest red dot sights so far. This red dot sight offers a more improved and highly efficient battery with its own internal voltage regulator. This red dot sight also works with a double AA battery. Aimpoint’s M4 2 Minute of Angle ACET CompM4 Sight now comes with an integral mount hence user won’t have to purchase separate ring anymore for their tactical accessories.
One of the new features of this red dot sight is its ability to efficiently use its battery hence it can give 100% dot brightness (as preferred by user) without sacrificing so much of its battery’s power. This was also made possible by the front lens’ unique coating. A complete kit of the Aimpoint M4 2 Minute of Angle ACET CompM4 Sight comes with a QRP2 mount and standard AR15 spacer. It also comes with a killFlash anti-reflection device and MILSPEC rubber lens cover. If you will be purchasing this for personal use, you can get ten year warranty and if you are going to use it for sports, you will get two years limited warranty from the manufacturer.
For the best red dot sight for AR15 from EOTech, you can get their EXPS2-2 Holographic Sight for less than $600 (click here for the price).
This red dot sight for AR15 features a 65MOA circle with two 1 MOA aiming dot. The base of this red dot sight is shorter hence you can mount it with less rail space needed.
The EOTech EXPS2-2 Holographic Sight no longer have battery cap and latch as the manufacturer just add an O-ring in its place. With the O-ring system and tethered cap, the batteries are better sealed inside.
The design of this red dot is also different in a way because of its battery compartment is no longer on the base but rather on top of the delta ring. This uses lithium 123 batteries. The batteries of this red dot sight can last up to 600 hours. For things that need adjustment, a button has been added for quicker access such as for brightness.
If you don’t have $500 but you want a quality red dot sight that goes with your AR15, the Reflex and Red Dot Sights 3X Magnifier Reflex and Red Dot Sights 3X Magnifier is the best red dot sight for AR15 that I can recommend.
This is a product of Mako Group and comes in at $$$$ (click here for the price). The Mako Reflex and Red Dot Sights 3X Magnifier is very light and have a rugged design that promises to stand even the harshest condition outdoor. This red dot sight is very easy to use and attach using a standard MIL-STD-1913 rail.
Once mounted, it won’t affect your firing negatively; it can even make you a better shot, the purpose of a red dot sight! With this red dot sight, there is no need for user to zero in anymore. The lens of the Mako Reflex and Red Dot Sights 3X Magnifier has 3x magnification power. For shooters whose gun doesn’t have a Picatinny Rail behind a reflex sight, this red dot sight can be attached to a regular metal sight. The Pica tinny Rail behind a reflex sight has a dimension of 6 x 4 x 2.8 inches and weighs 13 ounces.
Is there such a thing as good red dot sight for less than $25? Some might say they are good enough already hence they only need little help when it comes to aiming and shooting and a cheap best red dot sight for AR15 will do.
In this case, the Ohuhu Red and Green Reflex Sight is what I recommend. The Ohuhu Red and Green Reflex Sight just costs $ (click here for the price). This tubeless red dot sight has a 33mm reflex lens for wider field of view while sighting. Since the fov is wide, target acquisition can be done faster even if the target is moving.
The Ohuhu Red and Green Reflex Sight features four reticle patterns and the red dot has four sizes too. This is very easy to mount because of its standard base and when mounting and dismounting, there is no need to re-zero it. For its price, you will be surprised to know that this is parallax free too hence you can sight at any angle without changing how the red dot looks. For windage and elevation adjustments, it can be done with the Allen-head locking screw attached to it. This best red dot sight for AR15 from Ohuhu is also waterproof and shock proof and a V lithium battery is all you need to make it work. The battery is included in the package. This red dot sight has a dimension of 4.7 x 3.7 x 1.4 inches and weighs 5.6 ounces only.
When it comes to the best scope, best binocular and best AR15 red dot sight, you can all find them under one brand – Vortex Optics. Vortex Optics has been known for providing quality lenses and optics and their StrikeFire 2 Red / Green Dot Sight Scope is a proof to it.
The StrikeFire 2 Red / Green Dot Sight Scope offers simple and fast target acquisition making it one of the most effective red dot sights for AR15 out there. This is parallax free hence you can take advantage of the red dot sight even with your eyes open. Vortex Optics products are also known for durability and for their ability to withstand harsh outdoor conditions. The StrikeFire 2 Red / Green Dot Sight Scope is no different being fogproof and waterproof.
This red dot sight is O-ring sealed and purged with nitrogen to keep it safe from water, humid, debris and internal fog. Vortex Optics’ StrikeFire 2 Red / Green Dot Sight Scope also employ a 6 hout auto-shutdown mechanism allowing its battery to last longer. For the package that costs $$$ (click here for the price), you will get the red dot sight and a CR2 3v Lithium Battery. This red dot sight is compatible with guns having a Weaver-Picatinny Rail. This Vortex Optics item also weighs 2.7 pounds.
The next item on our AR15 red dot sight reviews list is the DDHB Red Dot Reflex sight from Dagger Defense. This red dot sight offers two colors, red and green hence it can be called as a green dot sight.
Dagger Defense’ DDHB Red Dot Reflex sight has four position reticles. Sighting adjustments can be done with the locking screws attached to it. The Dagger Defense DDHB Red Dot Reflex sight features an aperture of 3mm by 82mm and it weighs 291grams. This also comes with a field of view of 15.8m@100m.
The 15.8m@100m is compatible with any firearms that has Picatinny rail. For a price of less than $50 (click here for the price), you can have this red and green dot sight plus an instruction manual, the battery, a cleaning cloth for the lens and an Allen wrench. If you don’t know yet whether a red dot sight will work for you, try a cheap one first and if you feel like you can do better in terms of accuracy with a red dot sight, then it is the time to get a real and expensive one.
Most AR15 red dot sight reviews I read so far comes with certain favorite brands and among the common pick is Bushnell. For the best red dot sights for AR15 from Bushnell, you can check their Trophy TRS-25 Red Dot Sight Riflescope.
This red dot sight features a red dot with a measurement of 1x25mm. It also has 3 MOA. The Bushnell Trophy TRS-25 Red Dot Sight Riflescope produces the red dot by tilting its front lens hence reflecting the red LED dot light in the process.
You would know that you have incorrect red dot sight settings if your red dot looks misshapen in when sighting. This means that the intensity is too high. The Bushnell Trophy TRS-25 Red Dot Sight Riflescope is so far one of the most affordable red dot sights for AR15 with a price tag of less than $100 (click here for the price) that can do the job of a real red dot sight. This red dot sight only weighs 6.4 ounces.
Red dot sight and how it works
For shooters and firearm users, red dot sight is also called as reflex sight. The red dot is produced by a non-magnifying reflector through a small LED that gives it the red color. The light is reflected on a spherical mirror and when you look into your sight, you get to see the red dot. Standard and cheap red dot sights often produce parallax or the changing position of the red dot if you look at your sight from a different angle. If you are looking for the best red dot sight for AR15, you must look for one that is parallax free.
Types of red dot sights
There are different types and shapes of red dots once you look at your sight. You can see a tube like red dot like what you see in a scope while some produces a square like image with the dot in the middle. Although it is called red dot sight, there are sights that produces green dot among others so before making a purchase, ask your local store about it. The size of the dot also varies per model. It is important to use a red dot sight where the image is visible enough for you to see and appreciate it.
Why use red dot sights when you already have a scope?
When it comes to price, red dot sights can be much cheaper than a high quality scope and if you will compare the clarity of the image and the performance, you would notice that red dot sights can do it better. As compared to laser sights, it is also safer to use a red dot sight because damaged laser sights can possibly harm the eyes (cracked lens). Modern red dot sights are also getting lighter and lighter hence it is easier to mount and to carry it around. Last but not the least, the main use of red dot sight is to help acquire target more easily and with less time needed. This is something that most scopes cannot do hence if you are hunting with your AR15, getting the best red dot sight for AR15 will make your hunting more productive.
Placing a red dot sight
The best place to mount an AR15 is in the middle. Don’t place on the rear end of the rifle because it will be too close to your eyes and can cloud your eyesight. Since it is too close, all you can see now is the red dot and you might lose awareness of your surrounding because of that. If you have an nonmonolithic upper receiver, it is not recommended to place your sight on the far forward part because once you raise your gun to aim, the last thing you will see is your sight resulting to slower target acquisition.
What is the best red dot sight for AR15? The best red dot sight for AR15 is a battery free red dot sight that is free of any electronic failure. The disadvantage of course of a battery free red dot sight is its low performance in a low light environment. As for the an electronic red dot sight, it might need constant charging but with it comes better performance even in low light conditions, durability and modern electronic red dot sights even comes with longer battery life.
The best red dot sight for AR15 is the one complements the size of the firearm. Asking different people and reading different AR15red dot sight reviews can give you an idea of what you should be looking in a red dot sight but in the end, the feel and your comfort of using it matters most. Before paying for a red dot sight, try it first. This is the only way to tell whether you are indeed buying the best red dot sight for your AR15. As for the reviews, recommendations and customer feedbacks that you would be reading, those are just your guide on how to choose the sight to buy.