The M40A5 is the latest in a long line of M40 sniper rifles used by the U.S. Marine Corps. The M40 series is a highly modified Remington 700 hunting rifle, chambered in .308 Winchester/7.62x51mm NATO.

Here’s What You Need to Know: Sniper rifles are a choice weapon for insurgents and guerrillas, as they are a natural asymmetric weapon against conventional forces. The sniper, a soldier trained in ...