The Faxon Match series barrels are designed to enhance performance and value, crafted entirely in-house from premium gun-barrel-quality bar-stock. They are made from 416-R stainless steel and feature 5R rifling, a hybrid design that places lands opposite grooves to minimize sharp angles. This innovative rifling reduces jacket deformation, enhances velocity and simplifies cleaning. After extensive testing, each barrel undergoes a nitride treatment both inside and out, securing the bore, extending barrel life and providing robust protection against environmental elements. The barrel extension is finished with a Nickel Teflon coating, offering exceptional dry lubricity and corrosion resistance, while ensuring a precise fit between the extension and receiver to further enhance accuracy. The Faxon Match series barrels are engineered to deliver unmatched performance and reliability, suitable for both critical duty situations and competitive shooting environments. Recessed target crown Twist rate - 1:8 Gas block diameter - 3/4 inches 1.1 gas block journal length Compatible with DPMS LR-308 - barrel extension with nickel teflon coating Rifle length, 5R button-rifled, heavy fluted 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