Cpl. Eric Bobst, an Infantry Automatic Rifleman with personal security detachment, 2nd Battalion, 7th Marines, Regimental Combat Team 7, fires his IAR at a close-quarters range at Forward Operating Base Sabit Qadam, Oct. 22. The IAR is replacing the M249 Light Machine Gun as the automatic weapon organic to the infantry squad. - Cpl. Eric Bobst, an Infantry Automatic Rifleman with personal security detachment, 2nd Battalion, 7th Marines, Regimental Combat Team 7, fires his IAR at a close-quarters range at Forward Operating Base Sabit Qadam, Oct. 22. The IAR is replacing the M249 Light Machine Gun as the automatic weapon organic to the infantry squad.