
The IA2 was created by Lieutenant Colonel Paulo Augusto Capetti Rodrigues Porto of the Brazilian Armaments Industry (IMBEL), to replace FN FAL and its variants in the ranks of the Brazilian Army. The British Commonwealth variant of the FAL was redesigned from FN’s metrical FAL into British imperial units and was produced under licence as the L1A1 Self-Loading Rifle. It is chambered for the 7.62×51mm NATO cartridge (although originally designed for the. Because of its prevalence and widespread usage among the militaries of many NATO and first world countries during the Cold War it was given the title “The right arm of the Free World”. It is one of the most widely used rifles in history, having been used by more than 90 countries. During the Cold War the FAL was adopted by many countries of the North Atlantic Treaty Organization (NATO), with the notable exception of the United States.
