Lance Cpl. Josue Barron sights his target.
U.S. Marine Corps Lance Cpl. Josue Barron, with 1st Platoon, Lima Company, 3rd Battalion, 5th Marine Regiment, sights his target through an Advanced Combat Optical Gun sight scope at range 107 at Marine Corps Base Twentynine Palms, Calif., during training exercise Enhanced Mojave Viper on July 7, 2010.