I just got my first suppressor a week ago. As I was sighting in my new scope I discovered the heat mirage you get after even a few shots. I experimented with just laying a piece of leather across the top and it worked good for me. So this evening I made something a little bit nicer. It has the two thick strips of leather that are the only pieces touching the suppressor and it also holds the shield up off the suppressor 3/16” or so. I’m hoping that will help with cooling. I’m happy with it so far for what I’m doing.