Gilbert, who played at Texas before transferring to SMU, was joined by wide receivers Uzoma Nwachakwu, Brian Burnham, Quincy McDuffie and Corey Washington, as well as tight end Andy McCleneghen.
Gilbert was signed to the Raiders' practice squad before the playoffs when Matt McGloin suffered an injury late in the season. A sixth-round pick of the St. Louis Rams in 2014, Gilbert has spent time with the New England Patriots, winning a Super Bowl ring in 2014, and the Detroit Lions.
The Cowboys’ quarterback spot is unsettled with Tony Romo's status up in the air and Mark Sanchez and Kellen Moore set to become free agents in March. If Romo is released or traded, which is expected considering his $24.7 million cap figure, it would leave the Cowboys with a need behind Dak Prescott, who had 23 touchdown passes and just four interceptions as a rookie.
Burnham caught 79 passes for 1,392 yards and six touchdowns last season for the BC Lions of the CFL. McDuffie, whose agent tweeted later Tuesday that his client had signed, led the CFL with a 27.7-yard kick return average for the Winnipeg Blue Bombers and had two returns for touchdowns. Nwachakwu played at Texas A&M and has spent time with the Houston Texans, Miami Dolphins and was most recently with the Seattle Seahawks. He also spent time with the BC Lions.
The Dallas Cowboys just signed WR/Returner Quincy McDuffie who played for the Winnipeg Blue Bombers and led the CFL in kick return avg & TDs— Brett Tessler (@TesslerSports) January 31, 2017
Washington has been with six different teams since 2014 and caught five passes for 52 yards and a touchdown for the New York Giants in 2014.
McCleneghen was a defensive end at SMU, recording three sacks as a senior in 2015, but opted to move to tight end for NFL teams.