Magpul Armorer's Wrench for AR-15

Manufactured by Magpul Industries
Manufactured by Magpul Industries
35 Reviews

In Stock

Standard orders will ship out in 1 business days or less if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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The Magpul AR-15 Armorer's Wrench is an American-made, solid steel tool. This AR-15 tool is heat treated and manganese phosphate coated, the tough Magpul Armorer's Wrench engages both stock and pin-style barrel nuts. Compatible with standard sized flash hiders. The armorer's wrench installs and removes rifle receiver extensions and carbine castle nuts, with extended teeth for use with ASAP plates. Works with 1/2" torque wrench, relevant torque specifications embossed on Wrench for quick reference. This AR Wrench even includes a convenient bottle opener for refreshments after the build is complete (fits both Metric and SAE bottle caps). 

NOTE: Not compatible with larger pistol-style receiver extension tubes

  • American-made with heat-treated U.S. steel with a manganese phosphate finish
  • Armorer's hammer (two hammer faces)
  • 3/4” Flash hider/muzzle brake wrench
  • USGI torque specs embossed on handle
  • 1/2" torque wrench/breaker bar interface
  • USGI barrel nut wrench
  • Free-float tube barrel nut wrench
  • Rifle-length/Entry-length receiver extension wrench
  • USGI castle nut wrench with extended teeth
  • Bottle opener
  • Length: 11.7”
  • Handle thickness: 0.35”
  • Weight: 1.1 lb

Magpul continues to grow and develop based on innovation, simplicity, and efficiency. At Magpul, mission driven requirements inform their product design, materials, and manufacturing, focusing on efficiency without sacrificing quality or performance.
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Manufacturer.Magpul Industries
TypeArmorers Wrench
Weight17 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

35 reviews


Great wrench!


Although it's expensive, the wrench is very well made and nice and heavy. The finish does not rub off easy either. Last wrench I will probably ever buy!

Magpul AR-15 Armorers Wrench


Awesome, best I've used.

Magpul AR Wrench


Excellent product as expected, heavy duty forged construction and finish to last a lifetime. Used it to get off a particularly stuck barrel nut that took more than my body weight to break loose. Awesome tool, buy one over a cheaper wrench and you won't be disappointed.

What a tool!


For quite some time had been unhappy with the selection of wimpy AR15-related wrenches and tools in my toolbox. When I received the Primary Arms e-mail with the sale pricing on the Magpul AR-15 Armorers Wrench, I had to pull the trigger. This is a substantial tool that, at first glance, had what appeared to have too many options to be useful. I was wrong. This is a well-engineered piece of gear that is just the right length to provide great leverage. The finish is grippy, even with oily hands. The actual working parts of the tool are well-machined fit perfectly for the wide variety of purposes it was designed for. I would not trade this tool for any reason. I have since not hesitated to recommend it to anyone who would listen.

Great wrench, glad I finally found it!


For some reason I have not been able to find one of these in stores or at other websites. Primary arms was the only place that had it and I'm glad I made the purchase. This wrench made building my latest AR as well as tearing down an old one for Cerakote a breeze. 100% satisfied with the wrench and Primary Arms

Very Nice


great customer survive

Great Tool!


Great Tool! Smooth finish, Lots of tools in one, Very strong. Magpul makes great products.



I always need a Armorers wrench, work smarter not harder.

Best wrench I have used


I thought that this was very expensive for an AR wrench but once you see it and use it you will think it's well worth the extra cost. It's solid - well made and not coated w a think layer of paint the usually needs to be filed down on the contact surfaces so they fit. Torque opening is for 1/2" torque wrench. A quality well thought out wrench

Sturdy tool, lacks what others have though


It isn't able to screw a muzzle break on and off which is annoying, but it does work great for barrel nut and buffer tube installation.