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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
      Great for a AR build

      Posted by Ed W on 9th Jul 2018

      I order this castle nut along with a Colts lower parts kit to complete a Colt lower receiver build that I'm working on. Fast shipping and good price from Armsunlimited.

    • 5
      Exactly what I needed

      Posted by Garrett Schmidt on 11th May 2018

      Fast shipping, product was perfect.

    • 5
      Colt M4/AR15 Receiver Extension Castle Nut

      Posted by John Gilbarty on 28th Apr 2018

      Super Service, Excellent Product, Great Prices/

    • 5
      Colt castle nut

      Posted by Aaron Barentine on 26th Dec 2017

      Probably could have gotten a generic for cheaper but wanted to stay with Colt OEM Parts. Good price and very fast shipping. A good company to buy from.

    • 5
      Colt

      Posted by SanchoPanza on 10th Nov 2017

      For A4 Lower

    • 5
      Good

      Posted by Alec Nicholas on 29th Mar 2017

      Good

    • 5
      What I was looking for

      Posted by Alex Verdugo on 26th Dec 2016

      It's a castle nut from colt. You can't go wrong with that.

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