Magnetic Particle Inspected; Recessed Target Crown; Manufactured from 416-R gun-barrel-quality bar stock; 5R hybrid rifling for reduced jacket deformation and easier cleaning; Nitride treated inside and out for enhanced barrel life and corrosion resistance; Nickel Teflon-coated extension for dry lubricity and improved receiver fit; Optimized for accuracy and consistent performance; Built to perform under duty or competition conditions