FN SCAR systems are for sale every day at GunBroker.com. You can buy this popular Special Operations Forces Combat Assault Rifle made by FN Herstal through one of the many sellers listing their products here at GunBroker.com, the world's largest gun auction site.
Designed to fit the requirements of the United States Special Operations Command (SOCOM), the FN SCAR semi automatic rifle has two main models, the SCAR-L and the SCAR-H. While the SCAR-L (for "Light") fires 5.56×45mm NATO, the SCAR-H (for "Heavy") is chambered for 7.62×51mm NATO. Both of these FN SCAR models are available in "Close Quarters Combat" and "Long Barrel" variations.
The GunBroker.com sellers update their auction listings frequently, so if you're looking to buy FN SCAR systems or parts, check back often.