Home / AR Lower Components / LBE UNLIMITED CASTLE NUT “GEISSELE MARITIME BOLT CATCH” has been added to your cart. View cart LBE UNLIMITED CASTLE NUT$8.99 6 in stock [] LBE UNLIMITED CASTLE NUT quantity Add to cart 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… LBE UNLIMITED CASTLE NUT $8.99 Add to cart Related products Magpul Enhanced Trigger Guard, Aluminum – AR15/M4 – Black $21.80 Add to cart LBE Unlimited AR-15 Ambidextrous Sling Mount Receiver End Plate Steel Black ARAMEPL $9.95 Add to cart Out of stock Magpul B.A.D. Lever – Battery Assist Device – AR15/M4 $31.30 Read more Out of stock FORWARD CONTROLS DESIGN PF-40 TAKEDOWN AND PIVOT PINS $33.25 Read more