It works but could be better - Pachmayr Gripper Professional Gun Grips w/ Open Back Strap

Far more comfortable than the original wood grips on my S&W 586. However.... Did not like the open slot at the bottom. The same grip on my Python does not have this. Fit to the frame was pretty good but would be willing to pay a bit more for a nicer fit to my hand without the ridges where the grips join. A careful "adjustment" with an Xacto knife and a Dremel helps. Both the S&W and the Python feel much better for me than the original wood grips. The cost is minimal and the results are well worth it but "could be better".