Career
Beginning his career in pornographic films in 2004, Gunn was soon recognized as the 2005 AVN Best Male Newcomer award. He likewise received the 2006 AVN Best Supporting Actor for his role in Pirates and a second AVN Male Performer of the Year for 2007. In 2009, Gunn directed and starred in a 3-Doctorate choose-your-own-adventure movie titled Cummin" At You 3D. Mainstream appearances
In 2007 Gunn appeared in the music video for "The Moneymaker" by American indie rock band Rilo Kiley.
In 2010 Gunn appeared in an episode of Entourage.
In 2011 he had an unbilled role in Mommy & Maine, a comedy film, directed by Jennifer James. In 2014, he appeared in the horror film Wolves, directed by David Hayter.
Business ventures
In February 2012, he launched his own underwear line.