The Argentine Armed Forces officially adopted the FN FAL in 1955, but the first FN made examples did not arrive in Argentina until the autumn of 1958.
Subsequently, in 1960, licensed production of FALs began and continued until the mid-to-late 1990s, when production ceased.
In 2010, a project to modernize all existing FAL and to produce an unknown number of them was approved.
This project was called FAL M5.

Argentine FALs were produced by the government-owned arsenal FM (Fabricaciones Militares) at the Fábrica Militar de Armas Portátiles "Domingo Matheu" (FMAP "DM") in Rosario.
The acronym "FAL" was kept, its translation being "Fusil Automático Liviano", (Light Automatic Rifle).
Production weapons included "Standard" and "Para" (folding buttstock) versions.
Military rifles were produced with the full auto fire option.
The rifles were usually known as the FM FAL, for the "Fabricaciones Militares" brand name (FN and FM have a long-standing licensing and manufacturing agreement).
A heavy barrel version, known as the FAP (Fusil Automático Pesado, or heavy automatic rifle) was also produced for the armed forces, to be used as a squad automatic weapon.
The Argentine 'heavy barrel' FAL, also used by several other nations, was found to frequently experience a failure to feed after firing two rounds from a full magazine when in automatic mode.

A version of the FALMP III chambered in the 5.56×45mm NATO cartridge was developed in the early 1980s.
It used M16 type magazines but one version called the FALMP III 5.56mm Type 2 used Steyr AUG magazines.
The FARA 83 (Fusil Automático República Argentina) was to replace the Argentine military's FAL rifles.
The design borrowed features from the FAL such as the gas system and folding stock.
It seems to have been also influenced to some degree by other rifles (the Beretta AR70/223, M16, and the Galil).
An estimated quantity of between 2,500 and 3,000 examples were produced for field testing, but military spending cuts killed the project in the mid-1980s.

There was also a semi-automatic–only version, the FSL, intended for the civilian market.
Legislation changes in 1995 (namely, the enactment of Presidential Decree Nº 64/95) imposed a de facto ban on "semi-automatic assault weapons".
Today, it can take up to two years to obtain a permit for the ownership of an FSL.
The FSL was offered with full or folding stocks, plastic furniture and orthoptic sights.

Argentine FALs saw action during the Falklands War (Falklands-Malvinas/South Atlantic War), and in different peace-keeping operations such as in Cyprus and the former Yugoslavia.
Rosario-made FALs are known to have been exported to Bolivia (in 1971), Colombia, Croatia (during the wars in former Yugoslavia during the 1990s), Honduras, Nigeria (this is unconfirmed, most Nigerian FALs are from FN in Belgium or are British-made L1A1s), Peru, and Uruguay (which reportedly took delivery of some Brazilian IMBEL-made FALs as well).
Deactivated Argentinean FALs from the many thousands captured during the Falklands War are used by UK forces as part of the soldier's load on some training courses run over public land in the UK.

The Argentine Marine Corps, a branch of the Argentine Navy, has replaced the FN/FM FAL in front line units, adopting the U.S. M16A2.
The Argentine Army has expressed its desire to acquire at least 1,500 new rifles chambered for the 5.56×45mm NATO SS109/U.S. M855 (.223 Remington) cartridge, to be used primarily by its peacekeeping troops on overseas deployments.

The US Central Intelligence Agency (CIA) secretly purchased several thousand Argentine FAL rifles in 1981, which were supplied to the Nicaraguan Contras rebel group.
These rifles have since appeared throughout Central America in use with other organizations.

These rifles are currently being modernized to a new standard, the FAL M5 (or FAL V), which uses polymer parts to reduce weight, and has Picatinny rails and optic mounts for carrying accessories, that created these variants:
FAMTD: Fusil Argentino Modelo Tirador Destacado - Cañón Pesado (Argentine Designated Marksman Rifl
The Argentine Armed Forces officially adopted the FN FAL in 1955, but the first FN made examples did not arrive in Argentina until the autumn of 1958. Subsequently, in 1960, licensed production of FALs began and continued until the mid-to-late 1990s, when production ceased. In 2010, a project to modernize all existing FAL and to produce an unknown number of them was approved. This project was called FAL M5.
Argentine FALs were produced by the government-owned arsenal FM (Fabricaciones Militares) at the Fábrica Militar de Armas Portátiles "Domingo Matheu" (FMAP "DM") in Rosario. The acronym "FAL" was kept, its translation being "Fusil Automático Liviano", (Light Automatic Rifle). Production weapons included "Standard" and "Para" (folding buttstock) versions. Military rifles were produced with the full auto fire option. The rifles were usually known as the FM FAL, for the "Fabricaciones Militares" brand name (FN and FM have a long-standing licensing and manufacturing agreement). A heavy barrel version, known as the FAP (Fusil Automático Pesado, or heavy automatic rifle) was also produced for the armed forces, to be used as a squad automatic weapon. The Argentine 'heavy barrel' FAL, also used by several other nations, was found to frequently experience a failure to feed after firing two rounds from a full magazine when in automatic mode.
A version of the FALMP III chambered in the 5.56×45mm NATO cartridge was developed in the early 1980s. It used M16 type magazines but one version called the FALMP III 5.56mm Type 2 used Steyr AUG magazines. The FARA 83 (Fusil Automático República Argentina) was to replace the Argentine military's FAL rifles. The design borrowed features from the FAL such as the gas system and folding stock. It seems to have been also influenced to some degree by other rifles (the Beretta AR70/223, M16, and the Galil). An estimated quantity of between 2,500 and 3,000 examples were produced for field testing, but military spending cuts killed the project in the mid-1980s.
There was also a semi-automatic–only version, the FSL, intended for the civilian market. Legislation changes in 1995 (namely, the enactment of Presidential Decree Nº 64/95) imposed a de facto ban on "semi-automatic assault weapons". Today, it can take up to two years to obtain a permit for the ownership of an FSL. The FSL was offered with full or folding stocks, plastic furniture and orthoptic sights.
Argentine FALs saw action during the Falklands War (Falklands-Malvinas/South Atlantic War), and in different peace-keeping operations such as in Cyprus and the former Yugoslavia. Rosario-made FALs are known to have been exported to Bolivia (in 1971), Colombia, Croatia (during the wars in former Yugoslavia during the 1990s), Honduras, Nigeria (this is unconfirmed, most Nigerian FALs are from FN in Belgium or are British-made L1A1s), Peru, and Uruguay (which reportedly took delivery of some Brazilian IMBEL-made FALs as well). Deactivated Argentinean FALs from the many thousands captured during the Falklands War are used by UK forces as part of the soldier's load on some training courses run over public land in the UK.
The Argentine Marine Corps, a branch of the Argentine Navy, has replaced the FN/FM FAL in front line units, adopting the U.S. M16A2. The Argentine Army has expressed its desire to acquire at least 1,500 new rifles chambered for the 5.56×45mm NATO SS109/U.S. M855 (.223 Remington) cartridge, to be used primarily by its peacekeeping troops on overseas deployments.
The US Central Intelligence Agency (CIA) secretly purchased several thousand Argentine FAL rifles in 1981, which were supplied to the Nicaraguan Contras rebel group. These rifles have since appeared throughout Central America in use with other organizations.
These rifles are currently being modernized to a new standard, the FAL M5 (or FAL V), which uses polymer parts to reduce weight, and has Picatinny rails and optic mounts for carrying accessories, that created these variants:
FAMTD: Fusil Argentino Modelo Tirador Destacado - Cañón Pesado (Argentine Designated Marksman Rifl
FN FAL