BCM® KMR Barrel Nut

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Barrel nut for your BCM® KMR, MCMR, or QRF Handguard


  • KMR Barrel Nut

The KMR barrel nut will fit over all mil-spec diameter barrels (max of 1")

****This product does NOT include the BCM® Handguard. ****

***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.***

36 Reviews

  • 5
    Customer review

    Posted by Colton Rhodes on Oct 26th 2019

    Review body is empty

  • 5
    Customer review

    Posted by Jacob Hamel on Aug 30th 2019

    Review body is empty

  • 5
    Quality product

    Posted by Chad Walker on Aug 20th 2019

    I’m glad a replacement nut was so inexpensive since I ruined my original one between builds.

  • 5
    Exactly what I needed

    Posted by Charles Buchanan on Aug 19th 2019

    Exact barrel nut replacement for KMR rail. Great quality as always from BCM.

  • 5
    BCM KMR Barrel nut

    Posted by Mark Donley on Aug 6th 2019

    High quality

  • 5
    Good replacement

    Posted by Bryan on Aug 6th 2019

    Dinged up my first barrel nut, so when I swapped barrels dropping in the replacement nut to keep the same hand guard was easy. Installation was good and I’m glad I was able to replace the barrel nut without having to get a whole new rail

  • 4
    Good barrel but delicate

    Posted by Alfred Brown on Jul 17th 2019

    Absolutely love the BCM MCMR handguard. Have 8 of them so far. Do Like the top clamp design and machined fit. Be careful when torquing as the nut slots tend to allow the wrench to slip and burr the nut. Practice makes perfect, and the replacement price is reasonable. Still a great handguard.

  • 5
    Tight fit

    Posted by Fuzzy on Jun 4th 2019

    Very easy to install works great no timing

  • 5

    Posted by James Shaffer on Apr 14th 2019

    Every single item I have purchased from BCM has been top of the line Quality.