tritium on E2d?

[thesurefire]

Would it be possible to attack tritium to a E2d body? What would be the best way to go about doing this? Bore a small indentation into it (to fit the vial) and then just epoxy it in? How thick are the standard surefire 'e' serise bodies?

Is there a certain kind of epoxy that works best? I'm new to the whole tritium thing.

TIA
-David