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.