Faxon Firearms barrels are the ultimate in value and precision. Manufactured in house in Cincinnati, Ohio, each barrel is fully stress relieved, air gauge tested and 11 deg target crowned to ensure superior accuracy. Starting with only the best materials, such as certified 4150 Mil-Spec steel, quality is integrated into every stage of the manufacturing process. Each barrel undergoes a comprehensive battery of tests at each operation, ensuring flawless performance. Once the barrel is finished with nitride for enhanced durability, it is final inspected to meet our rigorous standards. Every barrel is individually checked for headspace using precision PTG gauges, ensuring reliability and accuracy with every shot. Equipped with a carbine-length gas system for dependable performance and balanced recoil management Magnesium phosphate exterior finish Standard 1/2-28 muzzle thread for broad compatibility with suppressors and muzzle devices Equipped with a 3/4 inches diameter gas block Designed with a 1.9 inches L gas block journal Equipped with an M4 barrel extension Magnetic particle inspected for quality assurance Precision 11 degree target crown for improved accuracy and consistent bullet trajectory