Users
| Country | Organization name | Model | Quantity | Date | Reference |
|---|---|---|---|---|---|
| Albania | Special forces | - | - | _ | |
| Brazil | Special Forces of Brazilian Army, Air Force, Marines, COT, and many law enforcement units | PSG-1 | _ | _ | |
| France | 1st Marine Infantry Parachute Regiment of the French Army | MSG90 | _ | _ | |
| Hong Kong | Special Duties Unit | _ | _ | _ | _ |
| India | National Security Guard MARCOS Indian Army |
- | _ | _ | |
| Indonesia | Komando Pasukan Katak (Kopaska) tactical diver group of the Indonesian Navy | MSG90 | _ | _ | |
| Komando Pasukan Khusus (Kopassus) special forces group of the Indonesian Army | MSG90 | _ | _ | ||
| Iraq | Iraqi Armed Forces | MSG90A1 | _ | _ | |
| Lithuania | Lithuanian Armed Forces | MSG90A1 | _ | _ | |
| Luxembourg | Unité Spéciale de la Police intervention unit of the Grand Ducal Police | PSG1 | _ | _ | |
| Macau | Grupo de Operações Especiais (Macau) | _ | _ | _ | |
| Malaysia | 11th Grup Gerak Khas (GGK) Counter-Terrorism Army Squad of the Malaysian Army | MSG90A1 | _ | _ | |
| Pasukan Khas Laut (PASKAL) Maritime Counter-Terrorism Squad of the Royal Malaysian Navy | _ | _ | |||
| Pasukan Khas Udara (PASKAU) Counter-Terrorism Air Force Team of the Royal Malaysian Air Force | PSG1A1 | _ | _ | ||
| Pasukan Gerakan Khas Counter-Terrorism Police Squad of the Royal Malaysia Police | _ | _ | |||
| Mexico | Standard marksman rifle of the Mexican Army Also used by the Policía Federal |
MSG90SDN | _ | _ | |
| Netherlands | Dienst Speciale Interventies (DSI) Unit Expertise & Operationele Ondersteuning police snipers of the Korps landelijke politiediensten Special Intervention Service. | PSG1 | _ | _ | |
| Denmark | Danish special forces have in a few public events in the 90'ties been photographed with MSG90 versions but they are now obsolete | MSG90 | _ | _ | _ |
| Norway | Hærens Jegerkommando (HJK), Army Special Forces Command and (MJK), Navy Special Forces Command. | MSG90 | _ | _ | |
| Pakistan | Special Service Group of the Pakistan Army. Produced under license by Pakistan Ordnance Factories | PSR90 | _ | _ | |
| Republic of Korea | Republic of Korea Naval Special Warfare Brigade | MSG90 PSG1 |
_ | _ | |
| Spain | Grupo Especial de Operaciones of the Spanish police | _ | _ | _ | |
| Taiwan | _ | _ | _ | _ | |
| Thailand | Royal Thai Navy SEALs | PSG1 | _ | _ | |
| United Kingdom | Used as a precision (sniper) rifle by specialist firearms officers in the British police | PSG1 | - | _ | |
| United States | Hostage Rescue Team of the Federal Bureau of Investigation | PSG1 | _ | _ | |
| Delta Force - 1st Special Forces Operational Detachment-Delta (1st SFOD-D) | _ | _ |
Read more about this topic: Heckler & Koch PSG1