The present disclosure includes an endoprosthesis delivery system comprising an elongate member, such as a catheter, an endoprosthesis, a covering member disposed about the endoprosthesis, a tip, and an end cap. The tip and end cap can be integral to each other. The covering member can extend beyond the distal end of the endoprosthesis and onto the end cap. The end cap can comprise a tapered profile, which may assist in retraction of the catheter tip and end cap into an outer sheath. The end cap can further comprise one or more fins.