The 21-year-old France youth international joined the Gers on a three-year deal earlier today following a successful summer trial at Ibrox.
"Sebastien is a 20-year-old lad and he will be good for us," said McCoist. "He's another one for the future although I hope he goes into the team and plays.
"He is young, aggressive enough and has a good attitude to play. I think he will do well. His future is in front of him and hopefully that will be at Ibrox."
Faure was capped 12 times at Under-20 level by Les Bleus.