Checkmate Guns is a gun shop that stocks:
Benelli
Walther
Feinwerkbau
FAS
SAM
Pardini
Sportwaffen
Rink Formgriffe
They have a constantly changing stock so if you are looking for a particular piece of stock, give them a call.
They carry an extensive range of accessories as well as rink grips to order for most pistols, in both walnut and laminate.