Why not?
http://www.midwayusa.com/eproductpag...eitemid=647161
http://www.brownells.com/aspx/NS/sto...?p=5808&st=&s=
Has this been tried? If not, might it work?
I was thinking just put some on the rail or in the way, just a thin layer, then file smooth until a nice fit is achieved. Why not? Supposedly it can be polished to a smooth surface.
What's the worst that could happen?