Complex sentence: Most versions are fitted with an integral folding bayonet which hinges down from the end of the barrel, and some versions, such as the Yugoslavian-made M59/66 variant, are equipped with a grenade launching attachment.
Split into simpler sentences: Most versions are fitted with an integral folding bayonet which rotates downward from the end of the barrel. Some versions, such as the Yugoslavian-made M59/66 variant, are also equipped with a grenade launching attachment.