Drilling a hole in carbon fiber handguard

[Michael]

tackdriver - I have not drilled into a CF handgaurd, but I have drilled into flat pieces of CF. Best way I found to do it was to sandwich the CF piece with wood/sheet metal on both sides. Also, using a VERY sharp bit is a must. On the handguard, maybe put a tight piece of wood dowel or metal pipe on the inside? I think your challenge will be the curved nature of your piece.
Also, make sure you wear a mask or respirator.