Gun Show since 1982. The Harbor/Petoskey Gun Show will be held on Oct 29th-30th, 2022 in Petoskey, MI. This Petoskey gun show is held at Emmet County Fairgrounds and hosted by Harbor Springs Outdoors Club. All federal and local firearm laws and ordinances must be obeyed. Saturday: 9:00am - 5:00pm Sunday: 9:00am - 3:00pm