Colt M4/AR15 Receiver Extension Castle Nut

Colt M4/AR15 Receiver Extension Castle Nut

Colt
SKU:
SP64069
$9.95
(29 reviews)
Current Stock:
Description

Factory Colt receiver extension castle nut for M4/AR15 type rifles.

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Reviews

  • 5
    Castle nut

    Posted by David G on 1st Sep 2020

    Colt is legit. Great parts to have on standby.

  • 5
    Original Colt parts are hard to find for AR's.

    Posted by Rob on 25th Jun 2020

    Parts were what I was looking for. They were perfect.

  • 5
    Colt Castle Nut

    Posted by Unknown on 30th May 2020

    Great experience buying this. I'm going to buy another.

  • 5
    Colt

    Posted by Brett H on 23rd May 2020

    Great fit and finish.

  • 5
    A+

    Posted by jv on 11th May 2020

    A+

  • 5
    Great replacement

    Posted by Pedro Suarez on 5th May 2020

    If your building a new build or replacing an old existing part, look no further, this is what you need.

  • 5
    Colt castle nut

    Posted by Charles E. on 26th Aug 2019

    Quality part; fit and finish is perfect. Colt's has the notches for proper staking of the end plate. As always, great AU service!

  • 5
    Colt Receiver Extension Castle Nut

    Posted by Michael Wiseman on 2nd Apr 2019

    My Colt castle nut was shipped fast and is typical Colt quality. AU is my go to for Colt products.

  • 5
    Colt quality, great price

    Posted by Mark on 13th Mar 2019

    High quality mil-spec part. A.U. Great company.