This thread is another example of the confusion....lol
The X-Frame grip frame is a roundbutt
K-Frame.... Many custom grip makers don't even list the L because the round K is the same thing.
If you order a custom wood grip for your x-frame, you will need to order the K frame, either in round but design or the conversion grip that will more closely match the factory rubber xframe grips.
Badger makes some real comfortable grips for the x-frame (Kframe)
Smith & Wesson Pistol Grips