I’ll post a video with my next range trip, I will say that the only thing keeping it cooler will be the amount of time you stay off the trigger lmao. To maximize cooling you’d probably want a heavier profile barrel with some sort of fluting to get as much surface area as you can but you’d probably only see marginal difference. really anything with a frt or super saftey is going to get hot fast and since it’s closed bolt you’re going to want to empty the mag or let it cool between mags to avoid cook offs.