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BROWNELLS - BRN AR-15 Armorer's Wrench

61 Reviews

BRN AR-15 Armorer's Wrench

Brownells #

080001208

MFR #

ARMORERS WRENCH

UPC

050806108455

$44.99

Purchase Limit

Out of Stock

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Can we ship this to you? (US only)

How To Buy Guns Online

International purchase information

Specifications

Make Model Fit:

AR-15.Universal

Quantity:

Color:

Black

Wrench Style:

Armorers

Material:

Steel

Restriction

Gun Tool Restriction:

Yes

View US State Restrictions

Can we ship this to you? (US only)

How To Buy Guns Online

International purchase information

What is the BROWNELLS - BRN AR-15 Armorer's Wrench?

Multiple Tools In One - You'll Always Want It Close By!

You'll find yourself reaching for the Brownells Armorer's Wrench a lot when you're working on AR-15s. The standard 6-pin barrel nut wrench works on both peg-style and encapsulated barrel nuts. The "can’t slip" 4-pin castle nut wrench enables secure installation and removal of M4-carbine type receiver extensions. (NOTE: the stock must be removed so the castle nut wrench can be slid over the buffer tube to access the nut.)

There's a cutout for an A2 receiver extension nut, another cutout for a 1/2" torque drive, and slots for 5/8" and 3/4" wrench flats on flash hiders and muzzle brakes. Of course, our armorer's wrench has the last-a-lifetime quality you expect from Brownells tools: heavy-duty steel construction, precise dimensions, and a comfortable anti-slip matte finish.

SPECIFICATIONS:

Material: Investment Cast Steel
Color: Black

See all of our AR15s and AR15 parts here.

Gun Tool Restriction
Gun Tools have restricted shipping to CA.

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Brownells Featured Dealers

Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.
Standard Dealers

Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.
Not Available Dealers

Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

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AR-15 ARMORER'S WRENCH REVIEWS

3.7

61 Reviews

5 Stars

49%

4 Stars

15%

3 Stars

2 Stars

13%

1 Stars

15%

Reviews Summary

Overall, the AR-15 Armorer's Wrench is praised for its sturdy construction and effectiveness in AR building and repairs. However, many users report issues with compatibility, particularly with buffer tubes and castle nuts. While some find it to be a great value for the price, others express disappointment due to the tool's fit not meeting expectations.

What Reviewers Are Saying

Product Quality

60%

Reviewers consistently note the wrench's solid construction and heavy-duty feel, making it a reliable choice for AR builds. Despite some complaints about fitment, many appreciate the sturdiness and design, considering it well-made and durable. Several reviews distinctly highlight it as the best in its price range.

Compatibility Issues

55%

A significant number of users encountered difficulties with the wrench not fitting specific buffer tubes, castle nuts, or barrel nuts on their ARs. This has led to frustrations, returns, and modifications on several occasions, illustrating inconsistency in product specifications which affects usability.

Value for Money

50%

Many reviewers believe the wrench offers excellent functionality for its price, performing comparably or better than higher-priced alternatives. Users appreciate the lifetime warranty and view the purchase as a worthwhile investment, especially for frequent builders or maintainers.

Ease of Use

40%

While some users find the wrench intuitive and easy to operate, others report challenges, particularly when using it alongside a torque wrench due to design limitations. This contrast highlights a variable experience among users, with those familiar with AR tools generally finding it more user-friendly.

Customer Service

35%

Customer service experiences are generally positive, with prompt responses for dissatisfaction or defects. Users feel supported when needing returns or replacements, which adds a level of trust in the brand despite product shortcomings.

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Just what I needed

This is a solid solution to a common task. although this is not the only one out there, I must say it is the one. Other solutions seem cheap and flimsy by comparison.

Would you recommend this? Yes, I would recommend to a friend

by JOSE SANTIAGO on January 18, 2026

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Excellent

Heavy duty, has all the right components to make job easy. Bonus, could knock out a bear if you needed!

Would you recommend this? Yes, I would recommend to a friend

by MATTHEW JENNINGS on December 31, 2025

Verified Purchase

Was this review helpful? 0

What I needed.

I called and asked for advice. The online catalogue was overwhelming . The one suggested was not the most expensive but was a Brownells brand. I made the order online, and chose the standard shipping. It arrived 2 days after I placed the order , was of apparently very high quality , and worked perfectly . I will be back next time I need any tool part , or accessory for a gun.

Would you recommend this? Yes, I would recommend to a friend

by JOHN MORRIS on September 28, 2025

Verified Purchase

Was this review helpful? 1

Helped me Finish my AR Project

It helped me install the muzzle brake on my AR-15 while I was preparing a review of the AR-15 Master Wrench, making the entire process smoother and giving me a chance to evaluate how well the tool performs in a real-world application.

Would you recommend this? Yes, I would recommend to a friend

by CONNOR MCCARTHY on July 11, 2025

Verified Purchase

Was this review helpful? 1