WHAT DOES RM66 MEAN?

Is also the revolver 6 inch design drilled and tapped under rear sight for use with a red dot mount adapter It appears like it’s about the same as the S&W 357 magnum revolvers with adjustable rear sightsMotivated by the globe of rock audio using a traveling tourbillon at 12 o’clock and in a constrained edition of 50 pieces, The brand new Richar