M27 Infantry Automatic Rifle (IAR)

A lightweight weapon firing 5.56 NATO currently in the process of being procured by the US Marine Corps and intended to enhance an automatic rifleman’s maneuverability. Based on the Heckler & Koch HK416, the IAR is classified by the Corps as a Squad Automatic Weapon and, according to Marine Brass, will be replacing a portion of the M249 light machine guns.