Rossi is roaring back into the U.S. revolver market with three new guns: the RP63, RM66 and RM64 models. The former two are available now, while the RM64 is coming later in 2023.Rossi is roaring back into the U.S. revolver market with three new guns: the RP63, RM66 and RM64 models. The former two are available now, while the RM64 is coming later in 2023.