Hart, 26, originally entered the league as a seventh-round draft choice of the New York Giants in 2015. In three seasons in New Jersey, he appeared in 33 games, making 21 starts for the Giants. He was released in February 2018.
Hart signed with the Cincinnati Bengals and immediately became a mainstay in their starting lineup at right tackle. Hart started all 16 games in 2018 and in 2019, and he started 13 of the 14 games in which he appeared during the 2020 season. The Bengals released Hart on March 19.
In his career, Hart has been called for 30 penalties, including 20 false-start penalties. While Buffalo is set at right tackle with Daryl Williams returning, the Bills lost their veteran backup, Ty Nsekhe, when he signed a one-year deal with the Dallas Cowboys.
Hart should compete with Ryan Bates and Trey Adams for the swing tackle spot on game days. General manager Brandon Beane has been known to flip reserve offensive linemen for draft choices at the end of the preseason, as well. Whether as a reserve or as trade bait, Hart is a solid addition to an already strong offensive line group.