In 2007, McQuistan switched to right tackle, and started six games in 16 appearances. In 2008, he played in just one game before suffering a season-ending injury. The Raiders released McQuistan in November 2009. McQuistan was a member of the Jacksonville Jaguars during the 2009 season, and the Cleveland Browns during the 2010 season, though he didn’t appear in a game for either of them. In January 2011, McQuistan signed with the Seahawks. With Seattle, McQuistan has been an important part of the offensive line, appearing in all 48 possible regular-season games and starting in 40 of them.