“With each new amenity and expansion, we increase our ability to contribute to the well being of the community and our tribal citizens.” “As a tribal citizen and a member of this community, I am proud to watch the growth of Gun Lake Casino,” Peters said. The new 72,000-square foot expansion features more seating for live concerts and sporting events, additional gaming space, outdoor fire-lit entertainment, and dining space, enhanced exterior features, and the ability for a guest to place wagers on their favorite sporting event. Gun Lake Tribe Chairman Bob Peters and tribal council members cut the ribbon on the Gun Lake Casino’s $100-million expansion last Friday morning.