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  • Colt M4/AR15 Receiver Extension Castle Nut

    • Colt M4/AR15 Receiver Extension Castle Nut

    Colt

    $9.95
    (34 reviews) Write a Review
    SKU:
    9390020
    Previous Part Numbers:
    64069
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    Product Description

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

    Product Videos

    Custom Field

    Previous Part Numbers 64069

    Product Reviews

    Write a Review

    34 Reviews Hide Reviews Show Reviews

    • 5
      Colt parts

      Posted by Michael Gibbs on 29th Jul 2022

      Colt is good! But once again arms unlimited with their pricing, inventory, and customer service is great!

    • 5
      Perfect

      Posted by Jonathan Dunn on 19th Aug 2021

      Simple and dead-nut dependable.

    • 5
      Great pricing

      Posted by Reuben Oaks on 26th Dec 2020

      Colt quality...

    • 4
      It works

      Posted by Unknown on 6th Dec 2020

      In my experience Colt castle nuts are consistent and work well.

    • 5
      Colt Parts

      Posted by William Mason on 20th Sep 2020

      I prefer Colt parts, AU is a reliable source with good inventory, price, and fast shipping. They already had my business, and have worked to keep it.

    • 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.

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