 In the opening match of the season at home to Wingate & Finchley he scored after 25 minutes on his debut but suffered a broken fibula 10 minutes later.McCollin scored on his return from injury on 11th Feb 2017 netting a last minute penalty in a 4–1 win over Grays Athletic.On 19 January 2019, McCollin signed with Whyteleafe FC.