Home / AR Lower Components / ERGO CASTLE NUT “Bravo Company Manufacturing MIL-SPEC Carbine Stock Hardware Kit” has been added to your cart. View cart “Bravo Company Manufacturing MIL-SPEC Carbine Stock Hardware Kit” has been added to your cart. View cart Out of stock ERGO CASTLE NUT$6.99 Out of stock Want to be notified when this product is back in stock? Notify me UPC: 810049123000 SKU: 4971-B Category: AR Lower Components Tag: ERGO Product ID: 37453 Description Description Standard Mil-Spec CAR castle nut Made from steel and coated black Fits AR-15/10 You may also like… Out of stock LBE UNLIMITED CASTLE NUT $8.99 Read more Related products Out of stock SIONICS Receiver Extension Kit w/ H2 Buffer & Sprinco Blue Spring $99.95 Read more Out of stock FORWARD CONTROLS DESIGN EMR-A ENHANCED MAGAZINE RELEASE AMBIDEXTROUS SERRATED STD LEVER $66.50 Read more LBE Unlimited AR-15 Ambidextrous Sling Mount Receiver End Plate Steel Black ARAMEPL $9.95 Add to cart Out of stock FORWARD CONTROLS DESIGN EMR-A ENHANCED MAGAZINE RELEASE AMBIDEXTROUS SERRATED EXT LEVER $66.50 Read more