The Guntec USA GT-BCG-308-TIN AR .308 Cal BCG (Tin Coated) offers superior performance and reliability for serious shooters. Constructed to MIL-SPEC standards, this tin-coated BCG ensures optimal function in any AR platform. Designed for durability and precision, it provides smooth cycling and improved heat dissipation. Experience effortless installation and compatibility with various components for a custom build. High-quality MIL-SPEC construction Tin coating for reduced friction and wear Enhanced heat resistance Compatible with .308 AR platforms Smooth operation and reliable performance Elevate your shooting experience with the Guntec USA GT-BCG-308-TIN BCG, crafted for excellence.