An adjustable guide rail assembly for a conveyor system includes an adjustable guide member having a face extending between opposite sides, a large radius face segment and a small radius face segment. The large radius face segment and the small radius face segment extend widthwise between the opposite sides of the adjustable guide member and each define an arcuate guide path for a three dimensional article. A radius of the arcuate guide path changes by rotating the adjustable guide member from a large article configuration where the large radius face segment having a larger radius defines the arcuate guide path to a small article configuration where the small radius face segment having a smaller radius defines the arcuate guide path.
