Modern assault rifles, such as the Austrian Steyr AUG rifle, are commonly made from polymers and GRP (glass-reinforced plastic, or fibreglass). They are made in weapons "families": individual parts are interchangeable between models, and a rifle can be converted into a light support weapon in minutes. The Israeli Galil came from a different family that took design ideas from the Finnish Valmet, which itself had adopted them from the Soviet AK-47. The Soviet AK-74 is an update on the AK-47.