CHRISTENSEN ARMS .264 CALIBER CARBON FIBER BARREL BLANKS Christensen Arms Carbon Fiber Blank Gunsmith Barrel. Weighing less than s steel barrel of the same contour. The barrel lining is made from match -grade 416R stainless steel measured to a tolerance of +/- .0001 then bored, reamed and button rifled. Includes threaded muzzle and thread protector. Chamber finishing should only be done by a qualified Gunsmith. SPECS Carbon Finer Barrel Blank Weighs less than a steel barrel Barrel lining made from Match -grade 416R stainless Steel Includes threaded muzzle and thread protector Mfg: Christensen Arms