Receiver Extension Nut (Castle Nut)

$7.00
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.***

206 Reviews

  • 5
    Castle nut

    Great quality product like always from BCM.

  • 5
    Support BCM

    I don’t even have an AR but I needed a castle nut for an Ak stock. The quality is second to none but the main reason I went with BCM is because they sponsor the Bongino podcast, which I also recommend

  • 5
    AR15 Castle Nut

    Just liked the original! Perfect fit! Works great!

  • 5
    Great finish

    Great finish and solid steel! It what’s to be expected from BCM

  • 5
    GTG- well made

    I trust these parts! No problems ever with anything I’ve gotten at BCM.

  • 5
    What you'd expect

    Installed well with the BCM Buffer tube assembly.

  • 5
    Castle Nut

    This is definitely a castle nut. Very castley, very nutty.
    Threads on fine, looks good. Not much else to say.

  • 5
    Buy It

    I know what you're thinking.... "It's just a castle nut.. they're all the same". I know... I use to be just like you. Let me tell you.... this is by far the BEST castle nut I have ever used. Well worth the few bucks more that it costs. The threads are so tight on this, screwing it on never felt so good. Spend the extra bucks and buy quality. You'll thank me later.

  • 5
    Castle nut

    What can I say? Its metal, looks good, fits perfect, returning customer made!