AR10/AR15 Stainless Steel Castle Nut

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Product Overview

Saltwater Arms castle nuts are produced from 416R stainless steel and manufactured to Mil-Spec dimensions. They will fit all standard carbine and pistol buffer tubes and secure your carbine and pistol buffer tube to your AR10/AR15 lower receiver. 

All Saltwater Arms components are high quality, 100% USA produced and manufactured.

  • Manufactured from 416 Stainless Steel
  • Notched for Staking
  • Weight: 0.6 oz
  • 100% Made in America

Dealers: Please contact our sales team at for dealer pricing and volume discounts.


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