the arm version is a light machine gun. it has a handle to carry the weapon, a bipod which folds and a larger handguard. the handguard is made from wood. the wooden handguard stays cool when the weapon is being fired fully automatically. the bipod can be used as a wire cutter. the back of the handguard can be used to open bottles. this was put in to stop soldiers opening bottles with the magazines, as this damaged them.