Top 5 Best AR 15 Armorer's Wrench in 2018 Reviews - Rifles HQ

Top 5 AR Wrench Tools For The Money Reviewed

  • November 22, 2017

best armorers wrench feature

It could be very tough to maintain rifles and other long-range guns. Many gun enthusiasts consider rifle as a complex machine that requires much attention, and they are quite right about that. To create a rifle, you need an ample amount of skills and knowledge. Designing this firearm alone is never an easy task, talk less of building one from scratch.

But thankfully, there are now a number of tools available for the maintenance of rifles, and one of them is the AR wrench.

When it comes to designing and building a rifle, one of the hardest aspect of this art is the maintenance. Maintaining a long-range gun can be very complex. But to ensure that your gun remains in good condition, it is necessary and important that you have full knowledge of the maintenance practices.

Normally, to maintain a gun, you need a lot of tools, including wrenches, pins, nuts, hammer, and many more. This should give you a clue of how bulky and heavy a conventional maintenance tool kit for guns can be.

More specifically, we shall be focusing on AR 15 and the tool required to build and maintain this weapon for effective performance.

Getting the best armorers wrench is what you need to keep your rifle in good shape. In its simplest form, this tool is used to tighten down the castle nut on the buffer tube of an AR carbine. Furthermore, it is used to fasten barrel nuts in case of any loosening.

If you really care about your gun, having this tool is nothing to think over because it does a great job in making your weapon function at its maximum potential.

Among the numerous armorers’ tools available in the market today, we have taken out time to do market research on the best AR 15 Armorer’s wrench you can buy for your weapon. But before we look at the reviews of these tools, let us first consider some key things that will lead to buying the good quality AR 15 tool.

What to look out for when buying top castle nut wrench

The armorer’s wrench for AR 15 is never a mystery, yet they could be very complex. Majority of the owners of AR 15 never assemble or take apart their guns beyond the elementary field stripping.

Even, for those who claim to build their rifles, they begin by working on an already assembled upper, which means besides tightening the castle nut, what is required of them is just a conventional hand tool, a steady hand and a sharp eye to make the assembling process go smoothly.

Most people have made use of a flat tip screwdriver and mallet to tighten their castle nut because they believe they can’t spend a couple of dollars to buy a basic tool. The truth is, if you are planning to build your own AR style gun or you already own one, you should look for the right tool for it, and an armorers’ wrench will probably be the top choice.

Below is a review of the top products to buy in the market.

Best Rated AR 15 Wrench Tools On The Market in 2018

1. Wheeler Engineering – AR Combo with Torque Wrench

Wheeler Engineering – AR Combo view

Most of the armorer’s wrenches are designed either as a simple single purpose equipment, or can perform virtually all the tasks that have to do with assembling. For the AR Combo tool, it has the capacity to perform an all-round tasks, and also comes with screwdriver bits and torque wrench for optimum use. It is rarely possible to see another wrench in the market that can perform a complete task as this tool.

It is a well-known fact that barrel nut has a torque range that needs proper care to ensure safety and maximum functioning of your gun. To be honest, how many of you have a torque wrench lying around? The percentage will very low I guess. If you are beginning to build an AR 15, this is certainly one of the best AR 15 wrench you need.


  • It is made from high grade material
  • It has a multipurpose function
  • It is relatively cheap


  • There is certainly no downside with this tool


2. Smith AR15/M16 Carbine Stock Armorer’s Wrench

Smith Wrench view

Having enough tools for your gun can be sometime essential because you never can tell when problems might arise. The simplest tool you thought is least important can be the best choice armorer’s wrench for your AR-15. The Smith AR15 Carbine Stock Armorer’s Wrench is designed to perform the two most common tasks in maintaining and building an AR. It can be used to take off flash hiders and fasten the buffer tubes castle nut.

While some people may prefer owning a wrench that is capable of doing everything, the Smith armorer’s wrench does greatly in improving your AR. It has an amazing build, less expensive, easy to keep, and lightweight. The fact that this tool is made in the United States and simple to use makes it one of the best wrenches you can get for building or maintaining your AR-15.


  • It is relatively cheap
  • It is simple and easy to use
  • It is made in the United States
  • It is lightweight
  • It has a beautiful design
  • Can be used for different purposes
  • It is made of durable material


  • It may require little fitting
  • It can’t do everything on your AR


3. Mythic Outdoors AR 15/M4/M16 Tool

This is another great tool every gun enthusiast needs to have for their rifles. With the Mythic Outdoor AR 15 armorer wrench, you are sure of having your rifle in a good shape. This tool is made of high grade material and it has an excellent design that makes it easy to use. It is made in the United States, and its durability feature is compared to none.

The Mythic Outdoor is used for mil-spec and tight fitting of your firearm to keep it in an excellent form. Maintaining your rifle is so easy with this wrench.


  • Mil-spec and tight fitting
  • Made from high grade, durable material
  • It has excellent built for easy use
  • It is relatively cheap


  • No downside related to this tool from all indications


4. MAGPUL AR 15/M16 Armorer’s Wrench

magpul ar 15 wrench tool view

It will be absolutely wrong not to mention MAGPUL on the list of the best castle nut wrench for AR 15. The MAGPUL AR 15 Armorer’s Wrench is an American made gear that is known for its rock solid and nearly indestructible features.

This amazing equipment will handle flash hiders, castle nuts, barrel nuts and torque wrenches. You can also use this tool to open bottle. Probably, MAGPUL thought it would be nice to take a cold drink after assembling your AR that’s why they include this feature in this tool.

Of course, this is the most expensive wrench on our list, but it is also the best in terms of construction and function. If you haven’t gotten an armorer’s wrench already, going for this product will certainly erase any form of worry about owning another again.


  • It is made in the United States
  • It is constructed from high quality material
  • It is versatile
  • It is durable


  • It is expensive when compared to other wrenches


5. BROWNELLS AR 15 Armorer’s Wrench

brownells ar 15 armorers wrench view

This is a great wrench that has the capacity to work on every part of your rifle. It can perfectly handle the installation of your barrel, great for changing out buffer tubes, and also perfect for flash hiders. Basically, if it has to do with an AR 15 and a wrench, this is the perfect tool you need.

This tool is a must-have for every gun enthusiast who wants to keep their weapons in good shape, or who is looking at building their own gun. This professional armorer tool is made from first grade cast iron, and you don’t have to break the bank to own it. It is durable, and it is expected of every AR 15 owner or gunsmith to own this tool.


  • It is made of high quality material for durability
  • It is easy and simple to use
  • It is versatile
  • It is worth every penny spent on it


  • Has limited function
  • Extra care will be needed to prevent it from breaking


Getting the best AR 15 Armorer’s Wrench is a nice way to keep your guns in good shape. With these tools, it becomes easy to clean every part of your rifle. Also, you can use armorer’s wrench to assemble your gun easy and efficiently. Any of the four tools listed above will be great for you and will serve you for a reasonable period of time.
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