Here you go, from Cherry's down in NC, toward the bottom of the page for about $850.
http://www.cherrys.com/ped_pist.htm
IIRC, Pedersoli bought the Euroarms equipment and these are Pedersoli's evolution of their revolver line, and parts
should interchange.
I'm glad I bought a Euroarms Rogers & Spencer when I did, as Pedersoli's price on it has gone astronomical.