High Standard Bolt Carrier Group 5.56, new, made in USA. $499.00 LAST ONE ON HAND! High Standard complete AR15, 5.56 bolt carrier group. Made in USA, top quality “Mil – Spec” components. New, ready to drop in! Only 1 left in stock High Standard Bolt Carrier Group 5.56, new, made in USA. quantity Add to cart Category: AR-15 Related products Colt AR-15/M-16/M4, Reduced Power Trigger Function Pak $19.97 45 Degree folding backup sights $95.00