I have a B&C m40 and wanted a cheek riser. I looked at the Bradley but wasn't sure about spending $100+. I considered the saddle styles but didn't want to drill into my stock. I didn't want to exchange the stock for something adjustable. I also wanted to ensure i could always reset the height exactly if i needed to take it apart. I ended up trying pieces of a cut up PVC pipe as spacers under a kydex saddle taped on with riggers tape. The height is perfect, very adjustable and it is ridiculously solid. I put the PVC spacers inside a section of bicycle inner tube to prevent any sliding of anything.