Receiver Extension Nut (Castle Nut)

$7.00
(126 reviews) Write a Review
SKU:
CASTLE-NUT-AR15
Stock Status:
To secure lock plate on an adjustable stock for AR15, M4
***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.***

126 Reviews

  • 5
    Good product

    Posted by Unknown on Jul 5th 2020

    Great product and I loved the extra stickers

  • 5
    Castle Nut

    Posted by Neil Williams on Jun 23rd 2020

    Great quality

  • 5
    Exactly what I was looking for!!

    Posted by Randy on Jun 12th 2020

    Perfect! Top notch quality!

  • 5
    Castle Nut

    Posted by Alan Knight on Jun 4th 2020

    After having a horrendous experience with Anderson Manufacturing, yours was a godsend.
    I could immediately tell that yours was a better quality. Went on my buffer tube with ease. Unlike the 2 from Anderson.
    I am now pretty sure I will be buying my upper from you also

  • 5
    Top notch quality

    Posted by Unknown on May 21st 2020

    You know anything BCM makes it top notch quality and to top it off there service can not be beat at the same time I ordered this I had 2 other orders that the company’s kept delaying because of the virus.....BCM shipped them that day and it was in my mailbox in 2 days compared to the other 9+days

  • 4
    castle nut

    Posted by SAR on May 1st 2020

    great price shipped fast

  • 5
    Buffer Nut

    Posted by Brad on Apr 23rd 2020

    Works a great deal better than the others.

  • 4
    Castle Nut

    Posted by Andrew J Bricknell on Apr 9th 2020

    Quality piece. Looks to be Mil Spec

  • 5
    Outstanding

    Posted by Darrell Thompson on Oct 13th 2019

    As always exceptional customer service, product and pricing