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Castle Nut

AR-15 Castle Nut
Part #: A.5.10.1020

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Most items ship within 1-3 business days via UPS or USPS, exceptions do occur during the holidays.


We back our products with a limited lifetime warranty and easy return policy.



 Made in the USA!_

Fits: Most AR-15 and AR Variants. Not Compatible with .308 Rifles

  • Steel Castle Nut
  • Works with Commercial, Military and Hybrid Buffer Tubes
  • Virtually Indestructible
  • Manufactured in the USA
  • Limited Lifetime Warranty