A medical device delivery system is described, the medical device delivery system comprising: a medical device carrier portion comprising a proximal end； a release mechanism cooperating with said medical device carrier portion and operable to release a medical device from said medical device carrier portion； and a proximal tip portion. The proximal tip portion comprises a largest outside diameter, a proximal end, a distal end, and a plurality of longitudinal lengths as measured from said proximal end to said distal end of said proximal tip portion, and is disposed proximal to said medical device carrier portion. The proximal tip portion further comprises and is operable between at least an extended longitudinal length and a retracted longitudinal length of said plurality of longitudinal lengths. Said extended longitudinal length is greater than said retracted longitudinal length.
