His development has stagnated however and after making just five starts in the Aviva Premiership last term he has been restricted to four appearances from the bench this time around.
In Europe it was a familiar story for Gray as he was limited to 24 minutes in Irish's resounding Amlin Challenge Cup win over Begles Bordeaux last weekend.
The main reason Gray has struggled for game time is the competition for places at Irish with Chris Hala'ufia, Jon Fisher, Jamie Gibson, Ofisa Treviranus and captain Declan Danaher all competing for places in the back row.
And Gray admits his younger reputation counts for nothing as he bids to make his breakthrough into the first team on a regular basis.
"There's such strength in depth at Irish and especially in the back row," he said. "At the moment I'm having to be happy with a place on the bench and making an impact from there.
"Of course it's frustrating, as an elite sportsman you want to be out there all the time but the way to get into the team is with your performances, nothing else.
"I've been on the bench a lot and so it's all about showing what I can do. We've got some great players like Chris and Declan and so it's a case of being patient at the moment."
The break in Aviva Premiership action for the European competitions arguably came at a bad time for Irish - having thumped league leaders Northampton Saints 39-17 last time out.
That came on the back of a hard-fought 29-22 home win over Bath Rugby, which arrested a run of three defeats to start the season, all of which saw the Exiles concede at least 40 points.
But in between the victories over Bath and Northampton came a disappointing away defeat to Worcester Warriors, and Gray believes Irish must find consistency when then return to domestic action after this weekend's home clash with Mont-de-Marsan.
"If you look at the start of the season we always had confidence that we would get it right, there was so much change at the club with new players and new coaches," he added.
"But we've shown what we can do, we put in a fantastic performance against Northampton which would have surprised a few people - we've shown what happens when we click.
"But before that we went and lost to Worcester and the manner in which we did was embarrassing really.
"We have to find the consistency to produce performances like we did against Northampton every week, that's what you need to do in the Premiership."
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