AR-15 Blue Flame Mil Spec Castle Nut

AR-15 Blue Flame Mil Spec Castle Nut

Add a bold and custom touch to your AR build with our Blue Flame Cerakote Mil-Spec Castle Nut. Designed for secure attachment of your carbine buffer tube or receiver extension, this high-strength component offers both dependable performance and head-turning aesthetics.

✅ 4140 Tool Steel Construction – Built from premium 4140 tool steel for unmatched durability and long-lasting performance.
✅ Fits AR-15 Platforms – Compatible with both Mil-Spec and commercial carbine buffer tubes.
✅ Cerakote Blue Flame Finish – Striking custom Cerakote finish provides enhanced corrosion resistance and a vibrant, unique look.
✅ Mil-Spec Design – Precision-machined to military specifications for a secure and reliable fit.
✅ Matte Black Base with Blue Flame Accents – Eye-catching style without sacrificing function.
✅ Corrosion & Wear Resistant – Protects against the elements for extended service life.

Perfect for builders looking to combine function, strength, and a custom aesthetic, this Blue Flame castle nut is an excellent choice for your next AR-15 project.