Armorer’s Wrench for AR-15 Multi-Fuction Tool by AT3™


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AT3 Tactical Delta Ring Tool – For AR15 Handguard Removal


This perfect tool for AR builds that allows installation & removal of barrel nuts, muzzle devices, rifle buffer tubes, and castle nuts.

This tool includes:

  • A barrel nut wrench that can handle mil-spec barrel nuts and delta ring assemblies
  • 1/2″ torque wrench adaptor
  • Castle and jam nut wrench (for both old and new style castle nuts)
  • A 3/4″ wrench slot for installation of most muzzle devices
  • A cutout for installing/removing rifle-length buffer tubes


  • Material: 4140 Steel
  • Finish: Powdercoat

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

AT3 Lifetime Warranty Logo

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot SightsHandguardsIron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.

Customer Reviews

Based on 106 reviews
Mitch White
Not good😔

First time using it, it broke in half installing a muzzle brake barely had any tension on it and boom broken.

Hi Mitch, we are sorry to hear about your experience with our Armorer's Wrench. We take product quality very seriously and would like to apologize for any inconvenience this may have caused. Please reach out to our customer service team for a replacement or refund. Thank you for bringing this to our attention.

Lance Mayfield
Not worth it

I don’t think it is worthy of one star but that’s the lowest rating available. One of the tabs broke on the first use. The hole for the torque wrench is oversized so the ratchet is sloppy loose. I had to resort to other options and run to the local hardware store to piece together a way to torque the barrel nut.

So sorry to hear about the issue, Lance. If you can please reply via email we want to make this right.

Broke first try on barrel nut.

One of the pins broke off when tightening barrel nut to 55lbs. Luckily I had a backup but I wouldn’t trust this. The pin looked like it just sat in a hole. No weld, glue, or anything. Guess they relied on a tight fit to hold it? Now the pin sits loosely. Terrible design.

We are really sorry for the trouble, Antonio. We would like to further help, if you can please reply via email.

Manuel Rodriquez
Awesome product

I received it faster than expected and it a very nice tool for the price that I will always have. Thank you and you have another life long customer.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!


Exactly what I needed and for a decent shipping rate

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!