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Magpul Armorer's Wrench AR15/M4
    Magpul Armorer's Wrench AR15/M4
    Purchase Magpul Armorer's Wrench AR15/M4
    • Magpul Armorer's Wrench AR15/M4
      Ratings Snapshot
      5.0
      out of 5
      5 (12)
      4 (0)
      3 (0)
      2 (0)
      1 (0)
      Would recommend this product.
      100%
      SKU: MAG-535
      UPC: 873750000268
      Manufacturer: Magpul
      MFG#: MAG535

    • MSRP: $79.95
      $75.95

      On back-order - Most Items will ship 2-4 week

      Quantity in Basket:  None

    •  

    Magpul Armorer’s Wrench – AR15/M4

    Built for the Bench. Trusted in the Field.

    The Magpul Armorer’s Wrench for AR15/M4 platforms is the ultimate all-in-one tool for professional gunsmiths and DIY builders alike. Precision-machined from solid American steel, this multi-use wrench is engineered to deliver maximum strength, torque accuracy, and long-lasting reliability—whether you're swapping out a muzzle device, torquing a castle nut, or installing a barrel.

    Designed for comfort and versatility, the ergonomic profile reduces hand fatigue while still delivering serious torque. Compatible with USGI and pin-style barrel nuts, carbine castle nuts, receiver extensions, standard flash hiders, and more—plus it even features a built-in torque wrench port and bottle opener for when the job is done.


    Key Features

    • All-in-One AR-15 Builder’s Tool
      Works with USGI barrel nuts, free-float barrel nuts, standard flash hiders, receiver extensions, and castle nuts.

    • 1/2" Torque Wrench Interface
      Integrates with standard torque wrenches or breaker bars for precise, spec-compliant builds.

    • Extended Teeth for ASAP® Plates
      Designed to handle aftermarket end plates with no hassle.

    • Hardened U.S. Steel Construction
      Heat-treated and phosphate-coated for corrosion resistance and serious durability.

    • Built-In Hammer Faces
      Includes two striking surfaces for light-duty armorers’ tasks—no need to swap tools.

    • USGI Torque Spec References
      Onboard torque values etched directly into the tool for fast, accurate adjustments.

    • Bottle Opener Function
      Because when the job’s done, you’ve earned it. Compatible with both SAE and Metric bottle caps.

    • Made in the USA
      Magpul-quality steel and engineering, built for serious users.


    📏 Technical Specifications

    Feature Specification
    Platform Compatibility AR15, M4, M16
    Material Solid US Steel
    Finish Manganese Phosphate
    Length 11.7 inches
    Handle Thickness 0.35 inches
    Weight 1.1 lbs
    Torque Wrench Slot Accepts 1/2" drive
    Hammer Faces 2 integrated impact zones
    Wrench Sizes Included ¾" for flash hiders
    Bottle Opener Yes – SAE and Metric compatible

    ⚠️ Note: Not compatible with pistol-caliber buffer tubes with larger diameters.


    🔥 Ideal For:

    • AR-15, M4, and M16 armorers or builders

    • DIY rifle upgrades or full rifle builds

    • Gunsmiths working with castle nuts, muzzle devices, and buffer systems

    • Professionals demanding a torque-ready, field-grade wrench


    Why Choose the Magpul Armorer’s Wrench?

    Because serious builders deserve a serious tool. From precision to practicality, the Magpul Armorer’s Wrench delivers the reliability and ruggedness trusted by gunsmiths, competitive shooters, and military professionals across the country.

    Upgrade Your Arsenal with the Best AR-15 Tools - Precision, Durability, & Reliability

    Unlock the full potential of your AR-15 with our premium selection of AR-15 Tools, designed for precision and built to last. Whether you're a seasoned gunsmith or a first-time builder, our tools ensure every job is done right. From armorer's wrenches to sight adjustment tools, we have everything you need to maintain and enhance your rifle with confidence. Shop now and experience the difference quality AR-15 Tools can make in your performance!

    Alt Description:

    • Magpul ar-15 armorer's wrench
    • Magpul ar wrench
    • Magpul castle nut wrench
    • Magpul® armorer's wrench – ar15/m4

    AR Tool Quick Link:

     


    The distinction between inferior quality and premium Armorers Wrench or AR Tools is undeniable. At MSP, we only offer AR accessories from the most trusted brands like MAGPUL. Buy with confidence that we stand behind the product we sell.

    WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov.

    Customer Ratings & Reviews

    12
    Ratings Snapshot
    5.0
    out of 5
    5 (12)
    4 (0)
    3 (0)
    2 (0)
    1 (0)
    Would recommend this product.
    100%
    5.0
    out of 5
    5 (12)
    4 (0)
    3 (0)
    2 (0)
    1 (0)
    Would recommend this product.
    100%
    12 Total Reviews
    • 1

    truly is a thing of beauty

    5 out of 5
    Location:
    Date: October 5, 2023

    After trying out the Magpul Armorer's Wrench, I found it to be a standout tool in the AR-15 maintenance world. Its rugged design, made from heat-treated steel, ensures durability. The wrench's multiple functions, including the ability to handle barrel nuts, flash hiders, and castle nuts, make it incredibly versatile. I particularly appreciated the torque spec reference chart, which is a thoughtful addition. While it's a bit on the heavier side, its weight is a testament to its robust construction. The wrench's price might be a bit higher than some alternatives, but given its quality and multi-functionality, it's a worthy investment for anyone serious about AR-15 maintenance. In my opinion, the Magpul Armorer's Wrench is a must-have for both professionals and enthusiasts.

    Recommended

    The Magpul Armorer Wrench Review

    5 out of 5
    Location:
    Date: October 5, 2023

    After getting my hands on the Magpul Armorer's Wrench, I was immediately impressed by its solid build and thoughtful design. It's clear that Magpul put a lot of thought into this tool, ensuring it caters to both professional armorers and casual AR-15 enthusiasts. The wrench is made of heat-treated steel, making it incredibly durable. Its multiple functions, from installing and adjusting components to even opening a bottle, make it a versatile tool. The wrench fits snugly, ensuring tasks like removing the flash hider are smooth and scratch-free. While the price might seem steep at first, considering its functionality and the fact that it replaces multiple specialty tools, it's worth the investment. I'd highly recommend the Magpul Armorer's Wrench to anyone in need of a reliable tool for their AR-15.

    Recommended

    It's pricey but worth every penny

    5 out of 5
    Location:
    Date: October 5, 2023

    Initially, I balked at the $80.00 price tag for a wrench, especially when my primary need was to remove the flash hider from my rifle. However, given the limited alternatives, I decided to give it a shot, thinking I could always return it if it didn't meet my expectations. To my surprise, the wrench fit perfectly, facilitating the removal of the flash hider and the installation of my new muzzle with ease. Its design not only simplifies the task compared to using a Cresent wrench but also ensures the barrel and parts remain scratch-free. Moreover, it's versatile enough to handle other specialized tasks, like removing castle nuts. When you consider the range of specialty tools it replaces, the price becomes justifiable. Believe me, this will be the only tool you'll need. I wholeheartedly recommend this wrench to builders, customizers, and AR specialists. I've decided to keep it, confident that it'll prove its value over time.

    Recommended

    magpul wrench works perfectly for milspec

    5 out of 5
    Location:
    Date: January 17, 2020

    The Magpul Armorer's Wrench was heavy-duty and reliable. It never once felt like it was going to break on me, and I've already used it half a dozen times on my mil-spec barrel nut. However, the pegs on the other side of the classic mil-spec barrel nut will not fit aero's bar barrel nut. If they used 3-4 pins, it'd have more use. It's also expensive, and it's hard to justify its limited function and cost, but I suppose that if you are doing nothing but mil-spec then it'd be worth it for you.

    Recommended

    Solid armorers wrench

    5 out of 5
    Location:
    Date: January 17, 2020

    I haven't run the Magpul armorer's wrench across too many rifles currently, but it had saved me the trouble of going and fetching a hammer a few feet away when I needed one. Works as you would expect on castle nuts and muzzle devices. Not much damage to the finish, not even after hammering a few items, and I missed that it had a bottle opener. Great addition. Feels like a tool I will have for many years, though I will update if it fails before then.

    Recommended

    Magpul armorer's wrench for ar-15

    5 out of 5
    Location:
    Date: December 31, 2019

    Solid tool. My only complaint is that the wrench for the muzzle device is assuming you're attaching a birdcage. I want to attach a KX5 and will have to use another wrench. Not a big deal. You won't find a better price than here, and shipping was quick — the experience overall I would recommend.

    Recommended

    best ar multi-tool

    5 out of 5
    Location:
    Date: December 31, 2019

    Just switched a free float quad to a troy alpha rail with this Magpul wrench. Flash hider came off without a hitch. Perfect fit. Used the tiny hammers to punch the gas block pins. They were so tight the wrench did not have enough oomph. So I used a big old 16 oz persuader, and that did the trick. As for switching out the barrel nuts, the spanner wrench side had a perfect lock up, and the wrench had just barely enough length to break them nut-free. If I needed more, it's nice to know a standard breaker bar could be added to the 1/2" socket. The Troy standard nut fit the sprocket side of the wrench perfectly also. With the torque wrench at 90 degrees, it definitely needed a two-handed tightening technique for me — one hand on each wrench. But never made the Magpul wrench slip or skip. No scratches and no busted knuckles. The total time was about 15 minutes, and most of that was spent on those dang gas block pins. All-in-all, this wrench was flawless. Now for a bottle cap... or two.

    Recommended

    best ar armorers wrench

    5 out of 5
    Location:
    Date: December 31, 2019

    The magpul mag535 is one of the best armors wrenches I’ve had the privilege of using, a bit more pricey than others out there but worth every penny.

    Recommended

    Beyond satisfied with magpul wrench

    5 out of 5
    Location:
    Date: December 31, 2019

    I bought this pul armorer's wrench for my first AR15 build. I couldn't be happier. Once you hold it in your hand, you can feel the quality. I can't wait to use it on future builds. MSP had the best price online and the shipping was fast.

    Recommended

    Good Armorers Wrench

    5 out of 5
    Location:
    Date: December 31, 2019

    I received my Magpul Armorer’s Wrench quickly after I ordered it. I have not owned other basic armorer’s wrenches before, but compared to my regular wrench set, this is clearly of a higher quality. The heft of the wrench in hand is substantial without being out of balance. I actually used the Magpul wrench as a hammer for the punches when building my AR-15 rather than go to the garage and get a real hammer. The butt of my punches is actually steel, but they didn’t leave a single mark on my Magpul wrench. Obviously working the castle but and everything else was a breeze. Unfortunately, I haven’t had a chance to use the can opener feature yet because I wanted to shoot my AR right away.

    Recommended

    The Heavy-Duty Solid Magpul Armorer's Wrench

    5 out of 5
    Location:
    Date: October 29, 2019

    Magpul armorer's wrench When I first started building, I purchased a cheap multi-tool armorer's wrench. After purchasing a Magpul armorer's wrench, now it's the first tool I grab for. I have never had an issue using this tool. I have done about six builds with this AR tool, and it's still going strong. It is a heavy-duty solid construction.

    Recommended

    Best AR armorer's wrench I've ever used

    5 out of 5
    Location:
    Date: September 4, 2019

    The Magpul Armorers Wrench is a tough and well made, has a quality finish, plus has the cool factor. Honestly, it is the best AR armorer's wrench I've ever used. Every tool on it has worked great. Plus, it has a bottle opener. What more could you need?

    Recommended
    12 Total Reviews
    • 1

    Explore the wide variety of versatile tools for your gunsmithing needs at Mounts Plus, including the top-quality Magpul armorer's wrench. This AR wrench not only offers unparalleled function but also boasts a robust design that withstands the toughest use. The Magpul armorer's wrench is an essential piece of equipment for any firearm enthusiast, combining innovative features with superior reliability. To maintain, upgrade, or build your AR-style rifle, there's no better tool than this. Trust Mounts Plus to deliver the best in firearm maintenance with the armorer's wrench and many more products for your arsenal.

     

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