McIntyre made 28 AHL appearances between Utica and Binghamton last season, going 15-10-2 with a 2.80 goals-against average, a .908 save percentage and two shutouts.
A Second Team AHL All-Star in 2016-17, McIntyre has played 183 regular-season games in the AHL with Utica, Binghamton and Providence, posting a record of 101-53-22 with a 2.52 GAA, a .909 save percentage and 13 shutouts.
McIntyre was a sixth-round choice by Boston in the 2010 NHL Draft and has appeared in eight career NHL games, all with the Bruins in 2016-17.
McAdam, a native of nearby Perkasie, Pa., spent the 2019-20 season with Adirondack in the ECHL. In 55 career AHL games with Bridgeport and Toronto, McAdam has a record of 29-16-4 with a 2.98 GAA, an .896 save percentage and one shutout.
Fitzgerald recorded 13 goals and 14 assists for 27 points in 61 games with the AHL’s Providence Bruins last season.
MacMaster spent the 2019-20 season with the AHL’s Toronto Marlies, setting career highs with 11 goals, 19 assists and 30 points in 56 games.
The third-year pro has appeared in 124 career AHL games with Toronto and Utica, compiling 17 goals and 37 assists for 54 points.