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Questions & Answers
Can you connect a 1/2" torque wrench to this wrench to torque the castle nut to specs? Expert Answer

Yes, you can connect the torque wrench in the slot just off the middle of the wrench.

by Kurt Colbourne, Gear Expert, February 22, 2021
One review says wrench was good for pistol buffer tubes and not great for carbine tubes, giving me doubt. Is it for rifle and carbine tubes or not? Expert Answer

This wrench is meant specifically for standard castle nuts. So it will work with any pistol or carbine buffer tube that uses a standard castle nut. The lugs on the wrench are meant to lock into the notches on a castle nut to allow the installer to tighten down the castle nut to secure the buffer tube to the receiver.

by Armando R., Gear Expert, December 27, 2019
Customer Reviews
Helpful Negative Review
Buffer Tube Review This style of buffer tube wrench is a must for tightening or removal of a castle nut on an AR pistol system. The buffer tube on most AR pistols are larger than for the carbine variant. I have several other tools (Magpul and a US...
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7/7 found this helpful
Most Recent Reviews
Works well by Big Al, July 30, 2018
I used this on windham src to remove factory end plate with bcm gunfighter QD end plate. Was very easy to use. Locked up well. Took me 3 minutes to swap out the end plate from locking it in vise to testing QD sling on rifle. Made the job ...
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Most Recent Reviews
Evan Voliva by Evan, March 20, 2018
Excellent tool, cost effective. I bought it because I trust Midwest industries and I was only building one lower and didn't want to spend a lot. It's durable lightweight and a must for any AR range bag.
Read All 3 Reviews

Save Big on Select Midwest Industries Products

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color:
Black
Condition:
New

Code: MWI-GAW-MIESW-MI-ESW

MPN: MI-ESW

UPC: 816537018506

Blazin' Deal
List: $16.95Save 20%
$13.56
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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Midwest Industries Stock Wrench For Ar-15

The Midwest Industries Stock Wrench For Ar-15 was created in order to function as the ideally suited product for any person needing a high quality choice..image

These Armorer's Wrenches through the professional product experts at Midwest Industries are designed by using dependable and dependable resources, to be able to supply you with a product which is going to be beneficial for many years. Made utilizing some of the best accessible components and engineering, these Armorer's Wrenches through the product specialists at Midwest Industries will last an exceptionally long time.

Midwest Industries has been making top quality merchandise for a number of years, and the Midwest Industries Stock Wrench For Ar-15 is their very own approach to revealing how much they care.

Right here at OpticsPlanet, we make it our responsibility to receive the best product for all of your requirements, and featuring the Midwest Industries Stock Wrench For Ar-15 is a thing that we're delighted to offer.

Specifications for Midwest Industries Stock Wrench For Ar-15:

Manufacturer: Midwest Industries
Fabric/Material: Steel
Color: Black
Condition: New
Country of Origin: USA

Package Contents:

  • Midwest Industries Stock Wrench For AR-15

Midwest Industries Stock Wrench For Ar-15 Orderable Models

List of Orderable Models

  • Midwest Industries Mi Stock Wrench, Black - MI-ESW , MPN: MI-ESW , UPC: 816537018506 , Code: MWI-GAW-MIESW-MI-ESW

Midwest Industries Stock Wrench For Ar-15 Unavailable & Discontinued Models

List of Unorderable Models

  • Open Box, Dealer Demo, Midwest Industries Stock Wrench For Ar-15 , MPN: MI-ESW-DMO , Code: MWI-GAW-MIESW-MI-ESW-DMO
  • USED Midwest Industries Stock Wrench For Ar-15, EDEMO1, Used, Condition Fair , MPN: MI-ESW-EDEMO1 , Code: MWI-GAW-MIESW-MI-ESW-EDEMO1
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Last updated 2026-09-04 UTC.