I just got a set in that are for an NM Blackhawk. I'm not sure exactly what that means as I'm not all that familiar with the Ruger grip frames, but they would require some fitting to work on my NM Flat Top Blackhawk. they're a bit long up behind the frame.
At this point I'm indecisive on whether to keep and use them, or just sell them. I like pretty guns and grips but my firearms gets used, if you know what I mean.