Faxon Firearms barrels are a testament to precision engineering and exceptional value. These barrels are meticulously crafted in-house, undergoing a comprehensive process to ensure unmatched accuracy and reliability. Each barrel is fully stress relieved and air Gauge tested, featuring an 11 degree target crown to enhance shooting precision. The commitment to quality starts with selecting premium materials, such as certified 4150 mil-spec steel or 416-R stainless, laying the foundation for excellence. Throughout manufacturing, each barrel undergoes rigorous testing at every stage, ensuring only the finest products are completed. The final step includes a nitride finish for enhanced durability and performance, followed by a meticulous inspection. Precision custom hardened Gauges are used to individually verify headspace, ensuring every barrel meets exacting standards. With Faxon Firearms barrels, you invest in a product where quality and performance are ingrained from inception to final inspection. 11 degree target crown Twist rate - 1:14 Gas block diameter - 0.875 inches 1.1 gas block journal length Pistol-length, button-rifled, gunner big bore barrel Magnetic particle inspection (MPI) for optimal performance to ensure optimal performance, it is essential to conduct magnetic particle inspection (MPI) with precision and adherence to established protocols This non-destructive testing method is employed to detect surface and near surface discontinuities in ferromagnetic materials By applying a magnetic field to the test object and introducing magnetic particles, any disruptions in the magnetic field caused by defects become visible, allowing for accurate identification and assessment Proper execution of MPI requires a thorough understanding of the equipment, materials and techniques involved, as well as strict compliance with safety standards and guidelines