Founded in 1968 as the Ottawa M&W Rangers, they are one of the oldest continuously operating junior ice hockey team worldwide.

The team rebuilt with blockbuster trades with cross-town rivals and defending league champions Ottawa Junior Senators.

In October 2004, coaching staff walking out of the organization over disagreements with management and ownership leaving the team with a shortage of players throughout the season through trades and releases.

The Gloucester Rangers finished the 2016-17 season and relocated to the 2,500-seat Clarence-Rockland Arena to become the Rockland Nationals after playing at the aging Earl Armstrong for nearly 50 years.

The team's play-by-play broadcaster is Richard Gauthier, who also serves as the public address announcer for the Ottawa Titans of the Frontier League.