Wests Tigers forward Bronson Harrison has agreed to a three-year-deal with the Canberra Raiders.

Harrison, 22, is the second Wests Tigers player to join the Raiders after hooker Stuart Flanagan agreed to a contract with the Green Machine earlier this year.

Wests Tigers granted Harrison a release from his contract despite having another year to run.

A Leichhardt Wanderers junior, Harrison rose through the ranks of the Balmain Tigers before making his first grade debut for Wests Tigers against North Queensland Cowboys in April, 2004.

He went on to play 79 matches for Wests Tigers, scoring 10 tries in the process.

Harrison also played a Test match for New Zealand in 2005.

"Bronson has been a very promising player who came up through our junior ranks and stepped up to play first grade at a very young age," said Wests Tigers Recruitment Manager Warren McDonnell.

"We hope he continues his improvement and wish him all the very best in the future."