Best AR-15 Flashlights – 2020 Complete Round-up

| Last Updated: January 14, 2022

A really important part of any rifle is the flashlight. Adding the proper flashlight to a rifle can increase the functionality greatly, especially when we talk about the AR-15. A good flashlight can make all the difference. 

However, one is left wondering which one to choose among the vast choices present in the market. 

To make it easier to pick, we have put together a complete round-up of the best AR-15 flashlights. 

Comparison of the Best AR-15 Flashlights

  • The total weight of the flashlight is 5.3oz, which is very light
  • It can be attached as well as detached easily with one hand
  • The flashlight has a very intense beam, making it the best overall
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  • The total runtime is 2 hours.
  • The runner-up flashlight weighs a total of 4oz, which is very light.
  • It has an output of 800 lumens, which is brighter than the average model.
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  • It is lightweight and weighs just 4.1oz.
  • The unit has a maximum output of 500 lumens.
  • This model offers great features and is the best for the money.
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  • It is the best AR-15 flashlight laser combination.
  • With this flashlight, you can target far-off targets with ease.
  • This model has a long run time compared to its competition.
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  • The battery is quite long-lasting.
  • It can provide up to 900 lumens of bright white light.
  • This flashlight made from anodized aluminum is the editor’s pick.
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What Purpose Does a Flashlight Serve on an AR-15?

First and foremost, it allows you to use both hands to handle your weapon as it is mounted on the rifle itself. This means you have a more secure and steady grip. This, in turn, may ensure a better shot. Moreover, if the flashlight is mounted to the rifle, it frees up your hands. This makes handling other equipment much easier. It makes moving about much easier, too. 

The primary purpose of any flashlight is to illuminate the dark. A flashlight on the AR-15 does that and more. Not only does it help identify targets in dark and dimly-lit spaces, but it also can be of use in broad daylight too. That is because it helps in making out tracks and having a clear view in areas with poor lighting. 

In the nighttime, it helps to get a more accurate shot as you are not shooting blindly. It can help you tell a friend from foe, which is also very important. All in all, it just makes using the rifle, as a whole, a lot easier. Having the light mounted means that the source of the light will also be steady, which also works in favor of the user. 

Characteristics of Our Favorite Flashlights

There are many aspects to consider before investing in an AR-15 flashlight. However, we will talk about them later on. Let’s first see some of the characteristics of our favorite models. So let’s get right into it!


All of our favorite models have one thing in common and that is durability. The reason this feature is important is that it ensures you get what you pay for. Apart from that, it can be really inconvenient to keep changing such an important piece of equipment. A durable flashlight will see you through any rough and tough situation with ease.

Crimson Trace CWL 202 mounted in an AR-15


Another thing that we like about our favorite models is they are lightweight. This means they do not put extra weight on the rifle itself, making it easier to carry. Since it is mounted on the rifle, the weight of the flashlight can affect the accuracy of the shot as well. That is why it needs to be lightweight, so it does not affect any other function of the rifle. 

Quality of Light

The quality of light must be excellent. That is a given in all the models we like. As mentioned before, the primary function of a flashlight is to brighten up darkened spaces. However, if it cannot do that, then it is more or less of no use. 

Review of Best AR-15 Flashlights

This is the section we have all been waiting for. Here are the reviews of the best AR-15 flashlights. Our favorite models have been categorized to help you make a pick easily. 

Best Overall:
Streamlight TLR-1S HP 69215


  • Total lifetime is 50,000 hours
  • Able to absorb shocks without getting damaged
  • Two powerful lithium batteries give it a long battery life
  • Quite sturdy and durable build crafted from anodized aluminum
  • Fitted with polycarbonate lens which cannot be cracked and is scratch-resistant as well


  • Gets very hot when left on for more than three minutes

What Recent Buyers Report

Buyers of this product are overall very satisfied with their investment. The quality of the STREAMLIGHT TLR-1S HP 69215 is nothing short of top-notch. It is virtually without flaw and lasts for a good amount of time. Although the powerful light is the star of the show, all the other features make it even more likable. 

Why it Stands Out to Us

Well, we do not know where to start with this one! It is such an amazing piece of equipment. Everything from its anodized aluminum body to its high-powered beam is excellent. The lens of the flashlight is very commendable, as well. It can stand a lot of pressure without getting damaged or even scratched. Lastly, it can also function in extreme temperatures, which is another plus point. 

Who Will Use This Most

Given all the specifications of this flashlight, it would appeal most to people who need the extra elements. It would work best for those who use their rifles in rough terrain and extreme temperatures. Furthermore, if you want those extra meters of illumination, this would be your best bet. 

Bottom Line

The STREAMLIGHT TLR-1S HP 69215 is a wonderful flashlight with various functions. The plus points may seem too good to be true, however, they are actually great. Yes, the flashlight may get warm when left on for a while, but that is a given. It is not much of a setback either. 

Inforce WMLx (Weapon-Mounted Light) Gen 2


  • Body made from high-quality materials
  • Lightweight but durable and can withstand shocks
  • Offers three operating modes: constant, strobes, momentary
  • Can be mounted easily without any complications or additional tools
  • Light is radiant, bright, and can illuminate for a considerable distance


  • Heat from the light may affect the body of the flashlight

What Recent Buyers Report

The light and sleek design is what makes this little flashlight so popular amongst buyers. Almost all reviews made by recent buyers show how happy they are with the compact design. The light is also appreciated because of how bright it is. The customer service has also been praised in many reviews.

Why it Stands Out to Us

This flashlight proves that great things come in small packages. Despite its size, the performance of this unit is beyond excellent. It offers a strong beam which outshines many of its competitors. The lockout feature is also a favorite, as it makes sure the light does not turn on when it is not needed. 

Who Will Use This Most

Users looking for a powerful light would automatically gravitate towards this flashlight. It offers 800 lumens of light, which is more than enough to satisfy anyone. Plus, it would also attract beginners, as it is very easy to mount and control. 

Bottom Line

More or less, this little flashlight measures up to all the important aspects. It is durable, bright, and lightweight, as well. In addition to that, it has a long run time, so that is another thing you do not have to worry about. 

Best for the Money:
Surefire M300C Compact


  • Lithium battery included
  • Light is steady and bright
  • Made from lightweight aluminum
  • Mounting process is easy and efficient
  • Sturdy and durable, despite being lightweight


  • Only 1 lithium battery included
  • Run time is lesser than other similar flashlights

What Recent Buyers Report

Most of the reviews are positive. It is a flashlight that offers all the necessary features at a feasible price and that is why it appeals to so many. Buyers report that it does a good job even though it is not as fancy as the other available options.

Why it Stands Out to Us

It is a complete package and offers a good collection of features. First of all, the material used to craft it is very lightweight. This makes it easier to carry and mount as well. Other than that, it is bright and the flashlight itself is sturdy too.

Who Will Use This Most

This is definitely the best unit for anyone on a budget. Users looking for a good flashlight but who want to get a good deal would be most attracted to it. 

Bottom Line

Overall, this is a good option to consider. It has everything that a good flashlight needs to have and it is easy on the pocket as well. Those who would like to get the most on a budget will enjoy this option thoroughly. 

Best AR-15 Flashlight Laser Combo:
Streamlight 69120 TLR-2 C4

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  • 2.5-hour run time
  • Two lithium batteries included
  • Can operate in extreme temperatures
  • Selector allows easy access to different modes


  • Some durability issues have been faced

What Recent Buyers Report

Many buyers find this product very satisfactory. It is a bright and lightweight unit, and according to many reviewers, it is quite sturdy, too. However, it has been said that this flashlight is a bit too bulky. Otherwise, it is a very nice piece of gear.

Why it Stands Out to Us

It has two functions integrated into it, so how could we not notice ? In addition to that, it has a run time of 2.5 hours, which is amazing. Although it has a laser and a flashlight combined together, it is still pretty lightweight. Lastly, it can operate in some very extreme temperatures, which also makes it stand out. 

Who Will Use This Most

Well, this flashlight will appeal to anyone and everyone. It is a great 2-in-1 kind of a deal that delivers quality. So, anyone needing this specific combination of functions would find this product very attractive. 

Bottom Line

If you're looking for a flashlight laser combo, this is a great option for you. It may be bulky, but every other feature makes up for that fact. It has a very long run time and it can help you mark your target with pinpoint accuracy. 

Editor’s Pick:
Crimson Trace CWL-202


  • Can resist water up to 1 meter
  • Includes two lithium batteries
  • Up to 1-meter impact-resistant
  • Battery life is 1 hour 25 minutes
  • Can be used as a handheld flashlight, or it can be mounted


  • A bit more on the expensive side

What Recent Buyers Report

Anyone who has bought this flashlight is absolutely taken by it! It has great features that are enough to satisfy users. The fact that it can be used as a handheld flashlight only adds to its popularity. 

Why it Stands Out to Us

There is no reason for it not to. Each and every feature of this flashlight is just great. The best part is that you get a maximum output of 900 lumens. The battery life is good too and you get a strong and sturdy piece of gear to work with. 

Who Will Use This Most

Given its top-notch features, this flashlight is bound to be a favorite among professionals. People who have a great interest in this field would also be attracted by this product. 

Bottom Line

This is an amazing product that really offers you the best. Out of all the products mentioned in this review, this one has the most functionality, as it can also be used as a handheld flashlight. Apart from that, it checks out on all the right places, making it a fan favorite. 

Aspects to Consider Before Buying

Earlier, we mentioned a few qualities from our favorite models. Now, let’s go through other aspects to consider before buying a flashlight. 

Battery Life

This is yet another essential factor to take into account. If a flashlight does not have a good battery life, it can let you down at any moment. That is why when you opt for a specific flashlight and make sure that it can see you through thick and thin. 


Make sure your flashlight is made from the best materials. While the insides do all the work, the outside also plays a critical role in holding the flashlight together. It is best if the flashlight can take a fair amount of shock. It would be even better if it was water-resistant, as well. 


Make sure the your flashlight of choice is not too bulky. It can obstruct the view and may even hinder your movements. The best flashlights are small, sleek, and yet still powerful.

How to Mount a Flashlight to Your AR-15

Mounting a flashlight to your rifle is actually quite easy. We have a video you can refer to for better understanding as well. All you really need is a polymer rail section, two screws, two nuts, and a wrench.

First of all, you will need to remove the handguard from your rifle. Then, take the bottom part of the handguard and put on the rail section to see whether the holes line up properly. If they don’t, you will need a rat file to make the needed adjustments. 

Once you make the holes from the handguard and rail sections line up, you will need to attach the two parts together using the screws and nuts. When that is done and dusted, simply reattach the handguard to the rifle and put the flashlight mount on the rail section. 

The last step is to put your flashlight on the mount and you are good to go!


Our review for best the AR-15 flashlights has come to an end. While AR-15s are powerful, you still need something to guide you in the dark so you can make the perfect shot. This is where AR-15 flashlights come in, which is why it is imperative you have the best. We hope you found this review insightful and it was able to help you choose the best option for yourself! 


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