Best Armorers Wrench Review and Buying Guide

Your survival skills and situational awareness will be of the essence in even in the worst-case one. Moreover, what you need is a well-packed sack of survival gear, including a medical kit as a must-have. Every prepper, survivalist, and homesteader should have different techniques of sustaining themselves and surviving. But one thing is crystal clear and universal for everybody: if you want to be ready for anything master your knowledge and skills. And, of course, ensure your tools are all right.

We honestly say that Magpul AR 15 wrenches are the best on the market, and of course, it would be great to start your first armorer’s tool experience from them.




Being a first-timer, you would not know how much pain other armorer’s wrenches brought to us before we got acquainted with a Magpul’s one, and we are glad that you would not have to know what it feels like to:

  • contuse your hand because of an over-pressure metal handle,
  • or to get blood from your knuckles when loose castle nut or barrel nut wrenches decide to slip (which is the worst feeling in the world!)
  • or to get really mad when your tool barely compresses the nut before falling out

Now you see how great Magpul Armorer’s wrench actually is? It does not make you suffer from any of the stuff that we mentioned above and risk your health when using it. On the contrary, it is the safest, the fastest, and the easiest AR 15 wrench with a decent but a bit higher price and thickness that you would be very much appreciated with!

Balancing in-between

Balancing In-Between

Magpul_Armorer_WrenchIt is only logical that when any company makes some new product, it must compromise on the number of instruments and the ways of placing them. You would not expect every item to be able to be put inside a NASA spacecraft, as well as see one instrument getting in the way of another.

This is the same with a gun tool: creating a helpful multifunctional armorer’s wrench also implies that you would need to balance your attention between individual parts and their relationships.

For this reason, you might understand why there are so many Leatherman Sidekick models. You cannot expect that a good gun tool would let its leverage handle land on a sharp edge of another one, as it would definitely worsen the product’s implementation.

Then what about a Magpul AR 15 tool?

Then What About A Magpul Ar 15 Tool?


Our helpful device has seven tools that are located over 11 inches’ length. The maximum impact of a tool is made when your hand is as far from the rotational point as possible. However, this implies that your hand would need to apply the biggest force there.

Opplanet-Magpul-Industries-Armorer-S-Wrench-Accessory-Fits-Ar-15-With-Bottle-Opener-Mag535-Av-1Other armorer gun tools that we used were hurting our hands: they had a pointed projecture instead of an ergonomic grip. This, in turn, made us wrap out the tool with a rag or wear gloves when using a torque wrench. Otherwise, injuries and blood would appear on our hands, and who wants that?

But with a Magpul helpful wrench, you would not have to worry about that! It provides you with:

  • A solid palm platform that lets you apply your hand force to the tool,
  • A proper foot-pound length of a wrench that is considering a human hand’s anatomy and the construction of a rifle,
  • A design that allows you to use the wrench with a torque wrench or a breaker bar.

When choosing an armorer’s wrench in a store, you would see that most of them put another toll right in the place where you would have needed to apply some power. Fortunately, the Magpul wrench is not like that.

Our helpful advice to you

Our Helpful Advice To You


One of our editors once told us a story about his neighbor that kept every device, be it good and helpful or not. And while helping him with a skylight project, our worker asked him for a number two Phillips screwdriver, but he brought a lot of different screwdrivers, and only one out of seven could have barely been used. So after that, our editor offered him to buy one excellent Snap-On tool and throw out all of the old ones.

We have told you this story to make you understand the following thought: you might think that settling for a lot of bad stuff in the sum would give you something better than one good tool, but actually, this is not the case. We advise you to get rid of anything “not bad but not good,” be it barrel nut wrenches or anything else in your life, and focus only on the highly qualitative stuff. A long warranty is always great, but is it not better to buy a helpful tool that would last you a long time even without it?

However, do not take this advice too strictly: you probably do not need the best and the most expensive armorer’s wrench in the world. Instead, think about your needs and find an appropriate high-quality armorer’s wrench for yourself.

Most common mistake

A big mistake that most newcomers make is buying a tool only for an immediate need. And then, when something more is needed from your wrench, you would have to purchase additional new parts for your wrench as well as the tool for them. But why would you want to pay three times more than you could have?

When you really understand that this tool is for one use only, then of course: save the money, buy the cheapest and some band-aids. But when a highly qualitative and helpful wrench that would not break is needed, a bit different price and wrenches categories must be considered.

For more proof, try asking around your friends who have wrenches and see how many times they have tried to upgrade it.

DPMS: purchase or not?

Dpms: Purchase Or Not?

ToolWe are very glad that DPMS tools are no longer made and sold on the web: they might look like a solid wrench, but in reality, they are not. It is too heavy, and its thickness is too big, has a low-quality performance, and has a weak tool grip.

But heck, DPMS wrenches are not the only ones that are horrible. Others also lack a decent grab, rotation, and grip. And when looking online for a decent DPMS wrench, do not trust the pictures! They do not show you how the person is applying the strain to the possibly helpful tool, as this would let you avoid slipping off of your loose castle nut wrench accidents.

More about the Magpul Armorer’s Wrench

More About The Magpul Armorer's Wrench

Magpul_FanboyWe admit that we are absolute fans of this multifunctional wrench! You folks definitely cannot find anything better than it is: the design, the functions, the convenience in hand – everything is top-notch!




Magpul_PayrollThere are no unnecessary updates on the market, and they come only when the new functions and needs are understood by the company and by its customers. Magpul is a company that actually cares about the quality of its products and learns from the mistakes of others: when they noticed that an AR armorer’s wrench was broken, they came to the rescue and did what they could.



Now, let’s see what features this Magpul 535 wrench has:

  • A tenth over a pound weight,
  • 11.7-inch longitude,
  • Heat-treated steel material with full manganese phosphate coating that gives you additional corrosion resistance,
  • An armorer’s wrench that serves both as an AR operator and professional armorer,
  • Two hammer faces, a rifle-length tube wrench, and a bottle cap for opening SAE and Metric bottle caps.
  • The amount of AR jobs that you can do with this wrench is bigger than on other tools.

The three most common actions

  • An ability to remove/install a muzzle device,
  • To remove or tighten the buffer tube castle nut,
  • To loosen or tighten a barrel nut wrench/free-float handguard ring

So, to sum it all up, here is the list of the three most important advantages of our wrench:

  1. Magpul has more contact points for gripping the product in need
  2. Has a more secure interaction with a workpiece
  3. It fits really well into the human’s hand and lets you easily apply maximum pressure

A closer look

A Closer Look

Magpul_Armorer_WrenchThe castle nut wrench has two sides: the logo’s side that decently captures a USGI castle nut so that your grip would not fly off the handle. However, note that this site is of use only for traditional castle nuts with no external features such as QD attachment points.

But do not think that Magpul did not think about this problem: they did and created a reverse side for this reason. This one is compatible with your castle nut’ enhanced plates with three beefy prongs.



Magpul_Review_Armorer_S_WrenchRemember that when using either of the sides, your barrel nut wrench should be placed over the carbine buffer tube. Do not slide aggressively if you do not want to create scratches on the tube.



The other wrench’s end

At the other end of your wrench, you would find a two-sided handguard interface: one side for traditional USGI barrel nuts, while the other side for free-float tube nuts.

In comparison with a DPMS, a barrel nut wrench has two more contact points, and provide you with a torque interface up to 80 foot/pounds.

And the free-float tube nut has a seven-pin spanner that will give you a great torque wrench to the floating handguard mounting solutions. Moreover, the Magpul wrench has embedded muzzle brakes helpful tools inside the castle nuts.

In addition, we can actually say that the Magpul tool is beautiful: you would even enjoy leaving it out on a bench and looking at it or hang it on the wall.

Wrenches as hammers

Wrenches As Hammers

Breakers HammersWe all used a wrench as a hammer in a moment of frustration, so you might wonder whether it is possible to build in a hammer or two inside the wrench? Well, it is. Magpul’s dual hammer faces give you a convenient surface for taps and punches. The company recommends you create a 90 degrees perpendicular for the better use of a torque wrench.

However, when some serious kicks must be done, it would be wise to buy an additional hydraulic hammer.

Frequently Asked Questions – FAQ

What does an armorer’s wrench do?

This great tool uses pressure and its deep sockets for letting you grip the nuts and not slip off. It allows you to apply some strain onto your castle and barrel nuts, muzzle brakes, or torque wrenches and move them if needed.

However, not all of these tools are of high quality: most of them could hurt your hand or slip off frequently so that no job can be done with their help. Look carefully for a decent one.

What is the best AR 15 armorer’s wrench?

In our opinion, the Magpul tool is the best one on the market, providing you with a good quality that is worthy of your money. It has a lot of contact points, a secure interaction with a device and your hands, and a great fit into a human’s hand for applying the maximum possible strain.

This helpful tool can be used for removing or installing a muzzle device, removing or tightening the buffer tube, and loosening or tightening a barrel nut. Moreover, it is not very thick and, at the same time, will not break for a long period. Other functions and features can be found in our article on this device.


A former USA Army sergeant and a highly educated survivalist and prepper with a degree and interest in Engineering and Electronics, Mike Millerson applies his extensive expertise in survivalism, homesteading, backpacking, hiking and hunting, spreading his deep knowledge about handling emergencies and prepping for them reasonably and effectively.




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