Adopted by the U.S. Army as their primary sniper rifle in 1988. Standard 24 inch heavyweight stainless steel barrel with 1:11.25 5R rifling, sight block mounted at the muzzle, "U.S." marking above the serial number on the left side of the receiver ring, Picatinny scope base mounted on the receiver with a Leupold Mark 4 10x40 mm scope. H-S Precision PST-024 composite stock with attached Harris folding, adjustable bipod, and adjustable buttplate with solid rubber recoil pad. Includes leather sling.