I have a 14-gun Stack On rifle cabinet that I bought on sale from Dick's SG's and am not thrilled with the foam barrel rests. Scoped rifles do not fit well at all. They push the foam rests right to the back of the cabinet. Do they make plastic or wood barrel rest extensions for scoped rifles especially for these cabinets? Or have any of you designed/made some yourself? I cant find them anywhere. Stack-on sells them on certain models and I cant even find them thru their site. Any idea's?