As a redshirt freshman, he only played in the season opener against Charleston Southern University.

As a senior, he started all 12 games at left guard, while not allowing a sack nor committing a single penalty.

Gunn was signed as an undrafted free agent by the Dallas Cowboys after the 2012 NFL draft on April 29.

On November 20, 2012, Gunn was signed by the Atlanta Falcons from the Saints practice squad.

[4] On August 6, he was released to make room for offensive guard Mark Asper.