The Flyers on Monday traded winger Mike Testwuide to the Calgary Flames in exchange for center Mitch Wahl.
Testwuide, 26, signed a two-year entry level contract with the Flyers on March 19, 2010, and has spent the last three seasons with the AHL Adirondack Phantoms.
In 19 games with Adirondack this season, Testwuide recorded two goals, 27 penalty minutes and a minus-1 rating.
Testwuide, who was not drafted by an NHL team, played four seasons of collegiate hockey with Colorado College before joining the Flyers' organization.
He is fourth all-time in games played for the Phantoms (161), third in goals (32), sixth in assists (38) and points (70).
Testwuide led all Adirondack rookies with 18 goals in the 2010-11 season and finished fourth on the team in points with 39.
Wahl, 23, was selected by the Flames in the second round (48th overall) of the 2008 NHL draft.
He has split time between the AHL Abbotsford Heat and Utah of the ECHL this season.
In a combined 54 career AHL games with the Heat and Hamilton Bulldogs, Wahl has five goals and 10 assists.
Wahl becomes the fourth California native on the Phantoms, joining Shane Harper, Matt Konan and Matthew Ford.
Both Testwuide and Wahl have yet to appear in an NHL regular-season contest.
In a separate transaction, the Flyers reassigned Phantoms center Andrew Johnston to the Trenton Titans of the ECHL.
Johnston has appeared in 29 games with Adirondack this season, collecting two goals and three assists.
In an earlier stint with Trenton this year, he played in eight games and scored one goal.