I recently bought an HK P7M8, and sold my P7M13, but i had a day or two that i had both pistols on hand. So i figured i'd post some comparison pictures. I remember when i was debating which model to get, i couldn't find too many pics side by side, so im here to fix that. Here you can see most of the differences.
Enjoy.
Here are some frame pics:
And these are with original grips:
And Some with Knill grips:
Here are some frame pics:





And these are with original grips:





And Some with Knill grips:






