A U.S. Army Rangers with the 75th Ranger Regiment armed with a M240B 7.62mm x 51mm machine gun, pictured during a direct action demonstration, April 2012.
Later versions of the M240B feature a picatinny rail system and an adjustable buttstock.
Ranger machine gun teams, part of a Rifle platoon's machine gun squad, consist of a gunner, assistant gunner and ammunition bearer.
There are 3 gun teams per machine gun squad.
The 75th
Ranger Regiment is a U.S. Army light infantry unit that carries out special operations including direct action raids and airfield seizures.