Eugene Stoner

Eugene Stoner was an American firearms engineer best known for designing the AR-15 rifle, whose military derivative became the M16.

AR-15: A lightweight, gas-operated rifle designed by Eugene Stoner at ArmaLite in the 1950s. Stoner’s defining design, later adapted for military service.
AR-10: A 7.62×51mm NATO rifle designed by Eugene Stoner and introduced by ArmaLite in the 1950s. Stoner developed this larger-caliber rifle before scaling its design into the AR-15.
World War II: A global conflict fought from 1939 to 1945 between the Allied and Axis powers. Stoner served in the U.S. Marine Corps aviation ordnance branch during the war.
Vietnam War: A prolonged conflict in Southeast Asia, involving North Vietnam and the United States-backed South Vietnam from 1955 to 1975. The M16 became closely associated with U.S. combat during this war.
M16 rifle: A United States military rifle derived from the AR-15 and adopted during the 1960s. The military derivative that made Stoner’s design widely known.
Aluminum alloy: A metal material made primarily of aluminum with other elements added to alter its properties. Stoner used aluminum alloy to reduce the AR-10’s weight.
United States Marine Corps: A branch of the United States armed forces specializing in expeditionary and amphibious operations. Military service gave Stoner early experience with weapons and their maintenance.
M4 carbine: A compact, gas-operated carbine derived from the M16 family and used by the U.S. military. The M4 carries Stoner’s AR-15 lineage into a shorter military weapon.
ArmaLite: An American firearms company founded in 1954 that developed lightweight rifles using advanced materials. Stoner designed the AR-15 while working at this company.
Fiberglass: A composite material made from fine glass fibers embedded in a resin matrix. Fiberglass components helped make Stoner’s early rifle designs lighter.

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Assault rifleRelated: His lightweight rifle architecture shaped later assault rifles, including the M16.