A delivery system for delivering an endovascular prosthesis is disclosed. A handle assembly is disposed at the distal end of the delivery system. The handle assembly includes a main handle and a second handle disposed at least partially on the main handle and rotationally moveable relative to the main handle. A trigger wire release mechanism is operatively coupled to the second handle. A sheath is operatively coupled to the second handle, such that rotation of the second handle relative to the main handle retracts the sheath in a distal direction. Rotation of the handle also moves the trigger wire release mechanism from a first position to a second position to retract one or more trigger wires.
