is occluded by a cylinder bottom which may be provided with an articulating eye not shown in the drawings by which the gas filled spring can be attached to a component in the working chamber 2 of the cylinder 1 there is a pressurized gas filling this working chamber 2 being sealed by an axially inner sealing member 4 which is disposed axially between a piston rod guide member 5 and a disc 7 this sealing member 4 provides a seal in respect of both the piston rod 3 and the inside surface of the cylinder 1 as an abutment in an axially inward direction for the piston rod guide member 5 there is an encircling bead 6 in the cylinder 1 acting on the disc 7 in axial direction there is a support sleeve 8 the outside diameter of which is adapted to suit the inside diameter of the cylinder 1 this support sleeve 8 is pushed with a sliding fit into the cylinder 1 at the time of assembly axial fixing of the support sleeve 8 the disc 7 the inner sealing element 4 and the piston rod guide member 5 occurs through the flanged over cylinder end 12 formed between the inner wall surface of the support.