The Fortis Standard Castle Nut is manufactured from a solid piece of billet aircraft grade aluminum that offers a significant weight reduction to your castle nut. If you're trying to save ounces, this is a great way, but without sacrificing durability. The castle nut will fit onto mil-spec buffer tubes and quickly upgrade the form and function of your build.
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FORTIS MFG Castle Nut Black Mil Spec
$16.95
Flat Rate
$12.99 for every 25 lbs. Shipping to HI & AK may incur additional fees.
Ships To Your Home
Fulfilled by a partner warehouse.
Partner Fulfilled
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