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 Out of stock Magpul Enhanced Trigger Guard, Aluminum – AR15/M4 – Black $21.80 Read more Out of stock FORWARD CONTROLS DESIGN EMR-A ENHANCED MAGAZINE RELEASE AMBIDEXTROUS SERRATED STD LEVER $66.50 Read more Out of stock Magpul ASAP – Ambidextrous Sling Attachment Point $30.35 Read more Out of stock BCM GUNFIGHTER QD End Plate $16.95 Read more