Military.com has an interesting article on the M14:
The growing need to equip these new marksmen with accurized rifles prompted the Army to reconsider the role of the venerable M-14 rifle for the war on terror. Back in Desert Storm, armorers from the 10th Special Forces group took M-14s equipped with a match barrels and fitted a gas piston on them for optimal performance, re-designating it the M-25. They replaced the stock with a McMillan M1A fiberglass one, developed a scope mount and added a Bausch & Lomb 10x40mm fixed-power optic or a Leupold Mark 4.
Hat Tip: Murdoc @ GunPundit