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M40 Sniper Rifle - Long Serving Weapon

Effective sniper rifle has been used in combat by U.S. Marines for five decades

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M40 Sniper Rifle - Long Serving Weapon

One of the longest serving and most effective weapons used by the U.S. Marine Corps is the M40 sniper rifle.

Bolt Action

The M40 is a bolt action sniper rifle used primarily by the U.S. Marine Corps. The weapon first entered service with the U.S. military in 1966 during the Vietnam Conflict. Several variants of the M40 have been manufactured over the years. The latest variant of the sniper rifle is known as the "M40A5," which entered active duty service with the U.S. Marines in 2009.

The M40 is built from a Remington 700 bolt action rifle. The U.S. Marine Corps modifies each weapon themselves at the Marine Corps base in Quantico, Virginia.  The M40 sniper rifle has an effective range of 1,000 yards and fires 7.62 x 51 millimeter bullets. The weapon can also be outfitted with a number of different components ranging from scopes and sights to sound suppressors and detachable magazines.

Use in Combat

Owing to its age, the M40 sniper rifle has been used in most major combat zones involving the U.S. military over the past five decades, including Vietnam, Grenada, Lebanon, the Balkans, Iraq and Afghanistan. The U.S. Army also uses Remington 700 rifles as the basis for its own sniper rifle known as the "M24 Sniper Weapon System."

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