The Eagle Sledgehammer is a very nice grip...
https://www.eaglegrips.com/sledge-h...t-white-polymer-sledge-hammer-grips.htmlNot 100% positive but I had a set that looked like the ones from Boone Trading Co. If you notice the upper horns of the grip are very thin...one of mine broke.
I have a set of the TruIvory on a USFA Single Action Army...they are stunning...
Bob