Are you an AR-15 user? Are you facing problems with respect to its recoil? If somebody ever compiled a list of all that complaints that people have against their inability to reduce the recoil, then we would have to certainly write a book about it. Well, for all the AR-15 users out there, there is a way by way of which you can achieve this task of minimizing the recoil of your AR-15 and that too without any threat to the internal components of your gun.

Yes, you read that correctly! There is way you can give a rest to this problem and that too without any wear and tear of the internal mechanics and components.

AR Gas Block

And you can do this by way of installing an AR gas block.

The AR-15 is a rifle that is opted by many because of the customizations it offers. While there are many methods by way of which you can minimize the effect of the recoil, installing a gas block is a great way to do it. Now, some would argue that the AR does not need any further reduction in the recoil as it is already a very light recoiling rifle so it would do no good by reducing it even further. But there are actual benefits of reducing the recoil. Some of them being:

• You can fire shots without much interval between them.

• The shots will also be more precise since they will essentially be one after the other.

Still wondering whether you should reduce the recoil or not? Still confused if you should go for the AR gas block or not?

Well, go on reading below to find out why you should go for a gas block for your AR rifle and what considerations you should keep in mind while buying one for your firearm as an upgrade.


To begin with, it is important that you know what exactly is a gas block. The gas block, as the name suggests, is a filler which fits over the hole above the rifle’s barrel. What a gas block exactly does is controlling the gas flow from the tube into the receiver which emerges as a result of firing a shot. To be more precise, when you fire a shot, the bullet moves down the barrel and side by side the gun powder inside the shell casing explodes.

As this happens, there is the production of hot gas, which moves through the barrel from where it travels down to the gas tube and then the receiver, creating a pressure.

This pressure leads to the bolt moving backward.

Thus, to sum up, your adjustable AR gas block will control the amount of hot gas that ends up in the receiver and by extension the pressure that causes the bolt to move backward. Thus, the gas block will determine the very functionality of your rifle.

Still doubting the importance of a gas block in your rifle’s use? It is meant to improve performance of your rifle and upgrades it in more respects than one.


The rifle market offers two types of rifle gas blocks:

1) Fixed gas blocks

2) Adjustable gas blocks

Now, the question is which one should you go for. The most commonly available are the fixed gas blocks because no matter the type of ammunition used by you, there will be always be some amount of hot gas that ends up in the receiver. While opting for it is completely fine however there are predicaments that accompany fixed gas blocks.

They end up transmitting more gas than what is needed to travel down the magazine tube leading to deposition of thick layers of gunk, which ultimately destroys the interior and when used repeatedly. While the functionality of the firearm may continue because of the over gassing, there will be considerable damage in the form of wear and tear of the internal components and mechanics of the firearm as each time a shot would be fired, due to over gassing the bolt would propel back and forth with excess force the load of which would be difficult to bear.

Further, the gunk would not only lead to wearing out of the internal components, but would also be difficult to clean.

Thus, many AR-15 users prefer an adjustable gas block for their rifle. An adjustable gas block, as the name suggests, enables you to adjust the amount of hot gas that enters the tube, helping you to limit over gassing and furnishing to the bolt only that much force which is needed to make it operational. As a result, you will now have a firearm free of gunk and you will be free of any tensions with respect to damage to the internal components of your rifle.


AR Gas Block

This question might cross your mind and you are right to ask this question. And to be honest, you do not need it after all, AR-15 rifles come manufactured with fixed gas blocks and they are being used just fine. However, an adjustable gas block is like an upgrade that you never knew you your rifle needed.

It will completely change the ease with which you use your rifle. It will be extremely beneficial for your rifle. Imagine no damage to your rifle’s internal components, no stress, easy cleaning. Does it not sound amazing? Yes, a fixed gas block would offer you more reliability, but an adjustable gas block is in no way less than a fixed gas block given that it would provide smoother and lighter recoil.

Further, as mentioned earlier, an adjustable gas block also gives the incentive of easy cleaning. Because of smoother recoil and generation of the adequate amount of gas, there is less carbon building up implying that there is little to no deposition of gunk and other such material. Hence, you would not have to spend hours cleaning up your rifle. Thus, it saves time and energy.

But are you wondering why so many people opt for an adjustable gas block for their AR-15 rifle is not because of these little pros. It is because it leads to less recoil or to be more precise, smoother recoil.

This is extremely beneficial as it helps you fire up shots quickly one after another, without much interval between them. This leads to a greater degree of accuracy and precision, boosting your performance in competitions or as a defense tactics and your overall shooting experience.

To sum up, an adjustable gas block is the preferred choice because:

i) Ease of handling

ii) Smoother recoil

iii) Ease of cleaning

iv) Better performance

v) Time saving and energy saving and

vi) Improved shooting experience.

Clearly, an adjustable gas block is the right choice for your AR-15 rifle.



Firstly, consider the material. There are various options available of which the popular ones are:

a) Stainless steel

b) Aluminium

While both are good options, between the two, it would be better if you go for the stainless steel one as an adjustable gas block made of stainless steel is durable and long lasting, thereby saving money and resources.


The next thing in your list of considerations should be the size. A wrong sized gas block will be of no use and thus, will serve no purpose. Thus, you must ensure that your adjustable gas block is of the right size. Make sure that the gas block fits the barrel.

Different AR-15 rifles have different barrel. For instance, a pencil barreled AR-15 rifle will require an adjusted gas block that has a diameter of .625 while a heavy bull barreled AR-15 rifle will require a .936 diameter adjusted gas block.


What also needs consideration is the way the adjusted gas block attaches itself to the barrel of the AR-15 rifle. The easiest way by which you can do this is by following the steps mentioned below:

a) Adjust the gas block down the barrel of the firearm.

b) Adjust the gas block in the desired place.

c) Make sure it is in the desired place by fixing it with screws on the underside.

Thus, the things that you need to factor in the case of an adjustment gas block are as follows:

i) Material of the adjusted gas block

ii) Size of the adjusted gas block

iii) Attachment style of the adjusted gas block

Hence, the only thing that your AR-15 rifle needs is the adjusted gas block for smoother recoil, accurate and faster shots and a fulfilling shooting experience. It is for sure a necessary prerequisite for a great shooting performance not just for competitions, but also for leisure time activity. The adjusted gas block is truly the cherry on top of the cake. So, what are you waiting for?