Home / AR Lower Components / ERGO CASTLE NUT Out of stock ERGO CASTLE NUT$9.99 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 FORWARD CONTROLS DESIGN RBF BUFFER RETAINER $7.60 Read more RADIAN WEAPONS TALON AMBIDEXTROUS SAFETY SELECTOR 45/90 DEGREES 2-LEVER KIT $64.95 – $69.95Price range: $64.95 through $69.95 Select options This product has multiple variants. The options may be chosen on the product page Out of stock SOLGW AMBI SAFETY SELECTOR KIT $30.00 Read more Out of stock FORWARD CONTROLS DESIGN PF-40 TAKEDOWN AND PIVOT PINS $33.25 Read more