Barron made his NHL debut with the Avalanche in the 2021–22 season, appearing in a December 15, 2021 game against the New York Rangers.[5] Collectively, he appeared in 50 games with the Eagles, registering six goals and eighteen assists, along with two scoreless games with the Avalanche.
Montreal Canadiens
On March 21, 2022, Barron was traded by the Avalanche, along with a 2024 second-round draft pick, to the Montreal Canadiens in exchange for forward Artturi Lehkonen.[6] He initially attracted good publicity upon arrival to Montreal, specifically by demonstrating proficiency in French as a result of having taken immersion classes during his schooling in Nova Scotia.[7] Barron made his debut with the team in a March 27 game against the New Jersey Devils, amassing 17:55 of total ice time.[8] He registered his first career NHL point, an assist, in a March 29 game against the Florida Panthers.[9] Thereafter, Barron scored his first career NHL goal in an April 5 game against the Ottawa Senators, his first home game at the Bell Centre. He suffered an ankle injury in the same game and exited early.[10] Seven days later, the team announced that he would miss the remainder of the season and would be unable to join the Laval Rocket, the franchise's AHL affiliate, for the Calder Cup playoffs.[11]
After recovering from injury, it was widely assumed that Barron would make the Canadiens' roster for the 2022–23 season out of training camp. However, after an underwhelming performance in the preseason, he was instead assigned to Laval. He admitted that this was initially difficult to process, but after some struggles in his early games with the Rocket, he set about "to play well enough to hopefully be that first call-up, and at some point, get back up there."[12] He was soon credited as the team's strongest defenceman.[13] On December 27, he was recalled by the Canadiens, having managed 7 goals and 9 assists in 25 AHL games.[14] Barron played the remainder of the season in the NHL, drawing generally positive assessments.[15] After the Canadiens failed to qualify for the 2024 Stanley Cup playoffs, Barron was one of four players reassigned to Laval to end the season.[16]
^Labelle, Florence (May 28, 2023). "Barron and Montembeault win gold". Translated by Milner, Evan. Montreal Canadiens. Retrieved December 11, 2024 – via NHL.com.