Users
- Argentina: Used by Argentine soldiers of C Company, Regimento (Especial) de Infanteria 25 in the Falklands War at the Battle of Goose Green and San Carlos.
- Australia: M14 SAGE EBR used in limited number by the Special Air Service Regiment/Special Operations Task Group in Afghanistan.
- Colombia
- Costa Rica
- Dominican Republic
- Ecuador
- El Salvador
- Eritrea
- Estonia: Adopted by Estonian military as marksman's rifle, modified by E-Arsenal called the Täpsuspüss M14-TP (Precision Rifle M14-PR), with heavy barrel, bipod, synthetic stock, and optical 4X sight.
- Ethiopia
- Greece: Hellenic Navy
- Haiti: Used by Haitian security forces in the 2004 Haitian coup d'état.
- Honduras
- Israel: Used as sniper rifle with eventual conversion and production as M89SR.
- Laos
- Lithuania: Lithuanian Armed Forces.
- Morocco
- Niger
- Philippines
- South Korea: Unknown number provided by the United States under military assistance program. In limited use with reserve forces and for ceremonial duties.
- Taiwan: Made under license as the Type 57.
- Tunisia
- United States: Uses the M14SE, manufactured by Smith Enterprises, in SDM roles and has purchased M14s from other manufacturers. Also uses M14s custom built or modified in military armories, such as the M39 Enhanced Marksman Rifle. The M14 is issued to crew members on Military Sealift Command vessels. The rifle is also used by the United States Border Patrol and by the Park Rangers of U.S. National Park Service.
- Venezuela
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