Connal Trueman, Josh Dacres-Cogley, Marc Roberts and Isaac Vassell are in the 15-man squad.
They will all be seeking some extra match action and minutes ahead of Blues return to the Championship at West Bromwich Albion on 29 March.
Charlie Lakin would also have part of the group for QPR, but he is banned for the next three Under-23s fixtures.
He was sent-off for serious foul play in the 2-0 defeat by Millwall Under-23s last Saturday.
Blues are without Caolan Boyd-Munce (Northern Ireland) and Geraldo Bajrami (Albania) who are on Under-21 international duty. Ryan Stirk is away with Wales Under-19s.
Zach Jeacock and Josh Andrews remain sidelined through injury, as does Kyle McFarlane.
Kane Thompson-Sommers is suspended for the QPR match and the Under-18s game against Leeds United on Saturday. Tate Campbell is also banned from the Loftus Road trip.
Both were dismissed a fortnight ago during the Under-18s game at Crystal Palace.
Blues currently sit third in the PDL North, three points Burnley, as they attempt to secure a Play-Off spot.
Blues (from): Trueman, Weaver, Hutton, Burke, Dacres-Cogley, Forrest, Roberts, Redmond, O'Keeffe, McLean, McCoy, Baker, Bailey, Vassell, Hurst.