Castle Nut

Castle Nut


  • Machined with 7050 billet aluminum
  • Type 3 hard anodize
  • Mil-spec
  • Fits all standard AR15/AR9/AR10 buffer tubes
SKU: N/A Categories: , ,


This castle nut / lock nut is made in Sapulpa, Oklahoma.

  • Machined with 7050 billet aluminum.
  • Type 3 hard anodize.
  • Standard mil-spec.
  • Fits all standard AR15/AR9/AR10 buffer tubes.

Important!! To receive similar color matching products in regards to our anodizing line, it is best to order your parts together. Ordering separate may cause a variance in colors.

Additional information


Black, Raw, Clear, Blue, Valor Green, Dark Green, Orange, Red