I’ve been racking my mind to figure out a way to raise the cheek pad on the M4 collapsible stock. The Hensoldt red dot I run is high and I don’t get a good cheek weld. I have to “hunt” for the dot every time since I don’t have a consistent cheek weld. I did a search and the only thing I have found is people adding adhesive pads on top of the stock. I dissembled mine and noticed that you could make some risers. I also noticed that the third screw had a concave recess, so that spacer would have to have a male/female extension made. Should be a simple non-permanent mod. Anyone done something similar? Any other feedback on different solutions. Would like to see what others have done before venturing into this.