Elevate your AR-308 performance with the Guntec USA GT-BCG-308-LM Bolt Carrier Group, designed for unmatched reliability and reduced weight. This skeletonized low mass bolt carrier group features a premium nitride finish, ensuring long-lasting durability and enhanced corrosion resistance in the field. Lightweight skeletal design for improved cycling speed High-quality nitride finish for superior wear resistance Precision engineered for compatibility with most AR-308 rifles Easy installation with standard parts Upgrade your shooting experience with the advanced technology of the GT-BCG-308-LM.