The Gunners are preparing for the new Premier League season, which begins September 12th.
The game happened at the club's London Colney training ground.
Arsenal managed a 4-3 win in the game, which did not have any press reporting on it and was not streamed online.
Ossie Kakay gave QPR the lead in the match, but Arsenal eventually went 3-1 up.
QPR made it 3-3, before the Gunners got a late winner.