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MK-12 - Special Purpose Rifle

Modern infantry weapon functions as a machine gun and sniper rifle.


MK-12 - Special Purpose Rifle
Updated February 15, 2011

The MK-12 is a special purpose rifle that was designed for use by U.S. Special Forces in Iraq.

Infantry Weapon

The MK-12 is a rifle used by Special Operations Forces in the U.S. Army and U.S. Navy. The weapon is a modified M-16 that also functions as a sniper rifle and can be used by military marksmen. The MK-12 was designed in response to the U.S. Army’s desire to have an infantry weapon that had greater range than most standard infantry rifles. The rifle entered service with the U.S. military in 2002. 

The MK-12 rifle has been deployed primarily in Iraq during military operations that have taken place in that country following the September 11, 2001 terrorist attacks on the U.S. The MK-12 is a gas operated, semi-automatic rifle that weighs 10 pounds when fully loaded. The weapon measures 37.5 inches in length and has a barrel length of 18 inches. It fires 5.56 x 45 millimeter bullets and holds 30 rounds. The MK-12 has an effective range of 600 yards. The weapon is commonly referred to as a "Special Purpose Rifle," or "SPR."

Other Features

The MK-12 rifle is a modern weapon that can be outfitted with a number of add-on features. These add-ons include sights, night visions scopes, suppressors or silencers, mounts and bipods for target shooting, and dust covers to protect it from desert sands and winds. The MK-12 has also been featured in movies, video games and novels about modern warfare and combat operations in Iraq.    

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