Knight\'s Armament Company (KAC) is an American firearms and firearms parts manufacturer, best known for producing the Rail Interface System (RIS) and the Rail Adapter System (RAS) grips for firearms use. They currently produce a variety of firearms, specifically rifles built on the AR-15 platform. One of their best known rifles is the SR-25 semi-automatic special application sniper rifle. KAC is owned by C. Reed Knight and is based in Titusville, Florida. Knight\'s Manufacturing Company (KMC) is the division of KAC responsible for products aimed at the civilian market.