I believe there is side to side adjustment on the stock butt pad, maybe a 1/4"?I wish they at least offered an extension like you’ve created here. I would also like to have one that would offset the buttplate a little to one side. Then you would be better able to get behind the scope and keep the butt in you’re shoulder. I have the same grip on a RPR. I really like the way it puts your finger in position on the trigger. Got one coming for the SDM rifle.
Sorry for taking so long to reply. I didn't get an email saying there was new activity. I used OpenSCAD.Neal,
Very nicely done. What program did you use?
Paul