The Fortis Standard Castle Nut is made 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.
Manufacturer part number: CN-Stand
Fortis Manufacturing Castle Nut Specifications:
- Lightweight design at only 5.5 grams
- Castle nut made from 7075 T6 Aircraft Grade Aluminum
- Installs with a standard stock wrench
- Made in the USA