Fortis Manufacturing Castle Nut Mil-Spec

Castle Nut Features 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. Castle Nut Specifications Manufacturer: Fortis Manufacturing Inc. Manufacturer Part #: CN-Stand Type: Castle Nut Color: Black Material: Aircraft Grade 7075-T6 Aluminum Weight: 0.2 oz Standard stock wrench needed to install Type III Hardcoat Anodize