Introducing the Faxon .308 Cal big gunner barrel - a testament to our commitment to precision engineering and customer satisfaction. Building on the success of our renowned 5.56x45mm Gunner barrels, the .308 Cal big gunner offers enhanced performance with a robust design tailored for those who demand more power. This barrel features an updated medium taper profile, meticulously refined based on valuable customer feedback to align with the esteemed Gunner brand's rigorous standards. The big gunner barrels are engineered with a medium taper behind the gas block, ensuring optimal balance and performance. The gas block journal is precisely machined to a 0.750 inches diameter, providing seamless compatibility with most standard gas blocks and extends to 1.9 inches in length to accommodate long blocks or aftermarket piston kits. Beyond the gas block journal, the barrel transitions to a thinner taper, a strategic design choice that reduces weight without compromising rigidity. This makes the big gunner barrels exceptionally suited for high rates of fire and as a reliable suppressor host. Whether you're in a competitive setting or on duty, The gunner profile barrels deliver unmatched reliability and performance when every second counts. Trust in the Faxon .308 Cal big gunner barrel to elevate your shooting experience. 11 degree target crown Twist rate - 1:10 Gas block diameter - 3/4 inches Gas block journal length - 1.9 Barrel extension for LR-308 (compatible with DPMS) Mid-length, button-rifled, big gunner 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