The Marine Corps has officially hit full operational ... The M40A6 is a heavily modified version of the original M40, which fires a 7.62mm round and was first fielded during the Vietnam War.

With roots dating back to 1966, the USMC M40 stands as a timeless sniper rifle classic. Built on the Remington 700/40X bolt action and refined by armorers at Marine Corps Base Quantico ...