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  • AU Mil-Spec Castle Nut for M4/AR15

    • AU Mil-Spec Castle Nut for M4/AR15

    AU

    Price: $9.95
    SALE: $2.95
    (1 review) Write a Review
    SKU:
    MSCN-AR15
    Bulk Pricing:
    Buy in bulk and save

    Bulk discount rates

    Below are the available bulk discount rates for each individual item when you purchase a certain amount

    • Buy 100 or above and pay only $2.00 each
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    Product Description

    AU's receiver extension castle nut for M4/AR15 type rifles

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    • 5
      quality product

      Posted by stimpson j. cat on 9th Mar 2026

      highly engineered product made from space age microspheres that also reduces the cyclic rate of my farting trigger. thanks A.U.!!!

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