#4 Right Hand Turnout Mark 4 NS Code 100 HO ScaleDetails: This Atlas HO Scale Code 100 Custom Line(R) Mark IV Turnout features Code 100 nickel silver rail with molded black ties. The turnout comes equipped with a metal frog that can be powered if necessary for your layout, and a throw bar with the extension on the straight (or outside on curved versions) stock rail side. Custom Line turnouts feature Code 100 low oxidation nickel silver rail with a realistic cross section and can be used with a