A pair of Marines from the 22nd Marine Expeditionary Unit (Special Operations Capable) (MEU(SOC)) take aim with Squad Advanced Marksman Rifles (SAM-R) during training.
The SAM-R is a M16A4 rifle with various modifications made to it to create a medium range sniper rifle suitable for use by designated marksmen.
The role of the designated marksman is to engage targets out to 1000m with a weapon capable of rapid fire.
Designated Marksmen are part an infantry squad and so need a weapon that can double as a general duties rifle.