After going unselected in the 2015 NFL draft, Trail signed with the Houston Texans.[2] On September 11, 2015, the team released him with an injury settlement.[3]
Washington Redskins (first stint)
Trail was signed to the Washington Redskins' practice squad on October 5, 2015.[4] He was released on October 12 but was re-signed back to the team's practice squad on November 23, 2015.[5]
Trail signed a futures contract with the Redskins on January 11, 2016.[6] On September 3, 2016, Trail was waived by the Redskins,[7] but was re-signed with their practice squad a day later.[8] The team waived him again on September 19.[9]
Los Angeles Rams
The Los Angeles Rams signed Trail to their practice squad on September 27, 2016.[10] He was released on October 1, 2016.
Washington Redskins (second stint)
On December 22, 2016, Trail was re-signed to the Redskins' practice squad,[11] and was promoted to the active roster the following day.[12]
On September 2, 2017, Trail was waived/injured by the Redskins and placed on injured reserve.[13] The team released him with an injury settlement on September 7, 2017.[14]
Hamilton Tiger-Cats
In early 2018, Trail took part in The Spring League, a developmental minor league football organization which highlights young talent for NFL and CFL scouts. Following his participation in The Spring League, Trail was signed by the Hamilton Tiger-Cats of the Canadian Football League on May 5 as a defensive lineman.[15][16]