WMD Guns Bolt Carrier Groups (BCGs) are the pinnacle of performance in the firearms industry. Renowned for their advanced NiB-X nickel boron coating, these BCGs redefine durability and reliability. Enhancing smooth cycling and reducing maintenance, our BCGs are trusted by AR-15 enthusiasts and professionals alike. Crafted with precision and a commitment to excellence, WMD Guns BCGs ensure flawless firearm operation, even in the harshest conditions. Elevate your AR-15 with the industry-leading BCG that sets the standard for unmatched quality and performance.