A deployment system for a self expanding stent includes a catheter assembly with a tip attached to a distal end segment of an elongate tube. The tip includes a proximal portion molecularly joined to a distal portion, which has a lower durometer hardness than the proximal portion. The proximal portion includes an anchor surface in contact with the distal portion, and oriented perpendicular to a central axis of the elongate tube. The elongate tube may be formed from a thermosetting polyimide, and the overmolded tip may be made from two different colored and different hardnesses of polyether block amide material. The tip is overmolded onto an untreated external surface of the elongate tube.