Your gun has the XR-3RED grip frame, as a New Model Blackhawk. Only the Flat Tops and New Vaquero have the XR-3 grip frame. (With the exception of the early three-screw guns.)
As to scratching your grips, these are impregnated with some type of plastic material and scratches can be buffed out so they will never "age" properly.
Don't waste money replacing these grips. The grips you buy will be of far more value than the ones that come from the factory.
Bob Wright
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