Home / AR Lower Components / LBE UNLIMITED CASTLE NUT Out of stock LBE UNLIMITED CASTLE NUT$8.99 Out of stock Want to be notified when this product is back in stock? Notify me UPC: 765857617329 SKU: ARCNUT Category: AR Lower Components Product ID: 3663 Description Description AR15 Castle Nut 4140 Steel Mag Phosphate Finish MADE IN THE USA You may also like… Out of stock LBE UNLIMITED CASTLE NUT $8.99 Read more Related products Aero Precision Enhanced Pistol Receiver Extension $35.99 Add to cart Bravo Company Manufacturing MIL-SPEC Carbine Stock Hardware Kit $57.95 Add to cart Out of stock BCM GUNFIGHTER QD End Plate $16.95 Read more Out of stock SIONICS Lower Parts Kit – Deluxe – Single Selector $99.95 Read more