Maiga joined from West Ham United on deadline day, along with fellow strikers Kevin Doyle and Will Keane.
Following a disappointing start to his stint at Loftus Road, the 26-year-old has dropped down the pecking order and has played just 65 minutes since his debut goal against Burnley on February 1.
With the former Sochaux man failing to make an impact so far, Redknapp believes Maiga has not done enough to warrant a place in his starting XI.
"He's got make me want to pick him," the Rs boss told Get West London.
"It's true he's from a Premier League club but so is Will Keane, and Kevin Doyle was there with Wolves two years ago."