He began his senior Greenock Morton career in 2003 when he was signed by John McCormack from Hillwood Boys Club. McGurn had previously played in the youth teams at Queen's Park, under John McCormack.
McGurn started his senior career at Greenock Morton in 2003, having been recruited by John McCormack from Hillwood Boys Club. He was a former player in Queen's Park's youth team, managed by the same person.