BCM® KMR Barrel Nut Wrench (and M4 stock)

MSRP: $19.00
Your Price: $14.95
(You save $4.05 )
(41 reviews) Write a Review
Stock Status:
This barrel nut wrench is for your KMR barrel nut. This is for hobbyist install.

This wrench also works for your M4 Lock Nut (Castle type).

1/2" drive.

Like all BCM® products, made in USA (410 Stainless Steel).
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

41 Reviews

  • 5
    Seems legit

    Posted by Doug Koenig on Jun 4th 2020

    Haven't had to use it yet. Picked it up because it was a great deal on clearance. I'm sure it will satisfy my needs.

  • 5
    Worked prefect

    Posted by Abrahm on May 26th 2020

    I was able to torque down my ar-15 buffer tube with no problems and for a cheap price too.

  • 5
    Barrel nut / m4 stock wrench

    Posted by Cody Bryans on May 6th 2020

    Only used the tool to install a buffer tube assembly so far it fit the notches on the nut tight and did not slip.

  • 4
    Barrel nut tool

    Posted by Doug Gilbert on Apr 20th 2020

    Works perfectly thanks

  • 5
    Customer review

    Posted by Jacob Hamel on Aug 30th 2019

    Review body is empty

  • 5
    Awesome tool!

    Posted by Scott Young on Aug 26th 2019

    This is exactly what I was looking for. My multi tool slips and damages the castle nut but this tool fits perfectly without slipping and damaging the nut. It also doesn’t cost as much as a lot of the highly recommended other tools. Perfect for the DIY person that only plans on doing a couple guns.

  • 5

    Posted by Gabriel Sanchez on Jun 4th 2019

    High quality tool like anything else from here...

  • 5
    Saint Edge / Saint Victor

    Posted by Joe on Jun 4th 2019

    This is exactly what I needed to remove the barrel nut from my Saint Edge and Saint Victor rifles! It’s super high quality and a perfect fit, plus it also works on your castle nut as well! Thanks BCM!

  • 5
    Great Company!

    Posted by anonymous on Jun 4th 2019

    Barrel Nut Wrench was very High Quality. Shipping was very fast. BCM never disappoints! Highly recommended