http://www.instructables.com/id/Restore-Bakelite-to-Original-Finish/
This instructable is how to perform a restoration on BAKELITE objects. I have not tried this on a gun part but it should work. Would somebody do this and report the results? Would be interesting to have some before and after photos of a pistol grip or butt stock or something.
DO THIS AT YOUR OWN RISK!!!