The FN SCAR or Special Operations Forces Combat Assault Rifle is a combat assault rifle developed by Belgian manufacturer FN Herstal for the United States Special Operations Command (SOCOM). In 2004 the SOCOM solicited a combat assault rifle that would be designed for two different calibers while still featuring commonality of parts and identical ergonomics. Thus the SCAR was developed and consists of two different types: The SCAR-L for light chambered in 5.56x45mm NATO and the SCAR-H for heavy chambered in 7.62x51mm NATO
Gas-operated, self-loading, and with a rotating bolt, the SCAR was constructed with modularity in mind. First put into service in 2009, the SCAR-L proved to be not as popular compared to other 5.56mm rifles. However, the SCAR-H is now in widespread use by the United States where the light weight, accuracy, and stopping power have proved worth on the battlefield.