The system (1) has a guide element (10) for displaceably guiding at a bottom rail (40). A rail element (11) is designed for connection with a vehicle seat (50). Another rail element (12) is designed for locking relative to the bottom rail. A drive (15) acts between the rail elements. The former rail element is displaceable relative to the latter rail element by the drive for moving the vehicle seat from front. The rail elements are designed for displaceable guiding at the bottom rail. A sleeve element and a spreading element are formed at a piston element.
