If I were to drop down from service rifle where my grip is fixed, and to shoot match rifle, I'd take a stock AR grip and drill holes in it, rough it up and go to filling it with bondo and shaping it until it worked in my hand just right. NO questions asked and it wouldn't bother me if I left it bondo pink as long as it worked...
While you can work around fit, IE service rifle you have to, its much better to make it fit you if "legal" to do so.
Jeff
