2nd Battalion, 4th Marines (2/4) is an infantry battalion of the United States Marine Corps. The battalion, nicknamed the Magnificent Bastards, is based out of Marine Corps Base Camp Pendleton, California and are a part of the 5th Marine Regiment and 1st Marine Division.
2nd Battalion, 4th Marines was constituted in April 1914 during World War I when it was activated as one of the three battalions of the 4th Marine Regiment.