SBH Super Black Hawk = Single action Revolver.
SRH Super Red Hawk =Double action revolver.
Red Hawk = Double action revolver.
GP100= Double action revolver.
SP101=Double action revolver.
Single action grips WILL Not interchange with Double action revolvers.
Red Hawk grips Will Not interchange with Single action revolvers, or with the SP101-SRH-GP100.
SP101 grips Will only fit the SP101.
Now it gets fun.
The SRH Will interchange with the GP100.
But not with the SP101.
The Grip Inserts from the SP101 Will interchange with the GP100 Compact Grip.
So if you wanted you can put a GP100 Compact grip on the SRH, using the SP101 Grip inserts.
I have a GP100 Compact Grip, with inserts for a SP101 on my SRH Alaskan.
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