Home / AR Lower Components / LBE UNLIMITED CASTLE NUT LBE UNLIMITED CASTLE NUT$8.99 7 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 RADIAN WEAPONS TALON AMBIDEXTROUS SAFETY SELECTOR 45/90 DEGREES 2-LEVER KIT $64.95 – $69.95 Select options This product has multiple variants. The options may be chosen on the product page GEISSELE MARITIME BOLT CATCH $29.00 Add to cart Out of stock FORWARD CONTROLS DESIGN PF-40 TAKEDOWN AND PIVOT PINS $33.25 Read more Out of stock BCM GUNFIGHTER QD End Plate $16.95 Read more