The agreement will be worth $874,125 at the NHL level and $70,000 in AHL salary.
McCarron, 23, spent the bulk of the 2017-18 season with the AHL's Laval Rocket. In 54 games with Laval, the Grosse Pointe, MI native recorded seven goals, 17 assists, and 121 penalty minutes. He also suited up for 18 games in two stints with the Canadiens, registering one assist and 32 penalty minutes.
The 6-foot-6, 230 pound forward has eight points (2G, 6A) and 110 penalty minutes in 69 career NHL games, and 81 points (31G, 50A) to go along with 278 penalty minutes in 144 career AHL contests.
McCarron was the Canadiens' first-round pick, 25th overall, in 2013.
