Gordon is correct, all John and Kelly from FEI require is a tracing of the components. I also furnished exact measurements along with the tracings. It would have been better though if they would have had the actual gun inhand to provide an exact fit.

FEI may have snap caps, oil cans. etc. but in my case I had pre-purchased them from Galazan. Incidently, FEI furnished the leather Fox trade label for my case at a fraction of the cost that others supply them at.