Kammala jumla mai zuwa: A kakar wasa ta 2015-16 mai zuwa, a ranar da aka buɗe ranar 6 ga Oktoba, 2015, Harrison ya share wa'adin, kuma an sake sanya shi zuwa Manitoba Moose na Ƙungiyar Hockey ta Amurka. A cikin dawowa zuwa AHL a karon farko tun daga 2010, Harrison ya bayyana a wasanni 18 tare da Moose kafin a hada shi a cikin yarjejeniyar cinikayya ta Jets, tare da Andrew Ladd da Matt Fraser zuwa Chicago Blackhawks a musayar Marko Daňo da zagaye na farko a cikin
2016 NHL Entry Draft a ranar 25 ga Fabrairu, 2016. Nan da nan aka sanya shi zuwa Blackhawks AHL affiliate, da Rockford IceHogs.