So, I tried out the Altamont Smooth Combat grips, and they fit very nice, and felt very comfortable. I believe these are the original grips (at least they look like them), that came with the PC version of the 646.
Can't wait to hit the range tomorrow and see how it goes. I love the look and feel of these Altamont SC grips. I also tried the round to square set, but the right panel did not fit well and will need some filing, to snug up the upper right portion.
This gun will be on my night stand just so I can admire it!
