I've fitted an Anschutz palm shelf to my Steyr, I'm very happy with it. It's on it's lowest setting but the plate is fitted upside down so it gives me more depth. They are very adjustable and allow you to put it exactly where you want it. I was worried it would make it topple and feel top heavy but it's fine.
Anschutz 2013 MEC1 .22LR
Miroku 3800 12bore