Colt M4/AR15 Receiver Extension Castle Nut

Colt M4/AR15 Receiver Extension Castle Nut

Colt
SKU:
9390020
$9.95
(31 reviews)
Current Stock:
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Description

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

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Reviews

  • 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.