Aero Precision Castle Nut Features:
- Mil-spec. receiver extension lock nut (castle nut) for use on AR15 carbines with an adjustable stock.
- Perfect for your new build or as a direct replacement for worn out parts.
- Made in the USA.
You Save: $0.52 (14.9%)
Aero Precision Castle Nut Specs
- Made In America? : Yes
- Platform : AR15