The smaller and cheaper RG's are derogitorily called "Roscoes" by the Law Enforcement community. They are the classic "Saturday Night Special", and many are lucky if they function.
However, like many makers, RG did have some good guns too. I once had the RG57 revolver in .357 Magnum, which looked and functioned well.
Plenty good enough for up close & personal, if need be.
They made a decent single-action "cowboy" revolver too.