Introducing the 6.5 Cal big gunner profile barrels by Faxon - a testament to our commitment to innovation and quality in barrel manufacturing. Building on the success of our renowned 5.56x45mm Gunner barrels, the 6.5 Cal big gunner barrels are engineered with enhanced features to deliver superior performance and reliability. Our latest design incorporates valuable customer feedback, resulting in an optimized medium taper profile that aligns with The gunner brand's rigorous standards. The 6.5 Cal big gunner barrels are crafted with a medium taper section behind the gas block, ensuring a perfect balance between weight and strength. The gas block journal is precisely machined to a .750 inches diameter, offering broad compatibility with most standard gas blocks and extends to 1.9 inches in length to accommodate long blocks or aftermarket piston kits seamlessly. Beyond the gas block journal, the barrel transitions to a thinner taper, a strategic design choice that reduces overall weight without compromising rigidity. This makes the 6.5 Cal big gunner barrels ideal for high rates of fire and as a reliable suppressor host, providing shooters with the versatility and performance they demand. Experience the next level of barrel craftsmanship with Faxon's 6.5 Cal big gunner profile barrels - where precision meets power. 11 degree precision target crown Twist rate - 1:8 Gas block diameter - 3/4 inches Gas block journal length - 1.9 Compatible with DPMS LR-308 - barrel extension with nickel teflon coating Rifle length, 5R 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