AU Mil-Spec Castle Nut for M4/AR15
Sale

AU Mil-Spec Castle Nut for M4/AR15

AU
SKU:
MSCN-AR15
$9.95 $2.95
Bulk Pricing:

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
(1 review)
Current Stock:
Adding to cart… The item has been added
Description

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

Related Products

Reviews

  • 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.!!!