Flynn (6-5, 320) originally signed with the 49ers as an undrafted free agent on May 4, 2017. He was waived by San Francisco on September 2, 2017 and signed to the team’s practice squad the following day. Flynn was placed on the Practice Squad Injured Reserve List on November 13, 2017 where he spent the remainder of the season.
A 24-year-old native of Knoxville, TN, Flynn spent five years at Montana State and finished his career by starting 43 consecutive games. He earned First-Team All-Big Sky honors in 2016 after starting all 11 games as a senior. In 2015, he started all 11 games at left guard. In 2014, he started all 13 games at left guard and earned First-Team All-Big Sky honors and was named Third-Team All-Big Sky in 2013 after starting the final eight games of the season. He also redshirted as a true freshman in 2012.