Fully extending rails from Hegra Linear Evolution achieve strokes of 100 percent of the closed telescopic rail length. They consist of three elements in different versions and telescopic rail sizes, for a total of 13 different versions of fully extending rails. In addition, numerous graduated lengths and features are available, therefore expanding the spectrum of individual fully extending rails. Telescopic fully extending rails are made of steel as standard material. Some versions are also available in stainless steel (V2A, V4A) or aluminium.