I plan to add a bottom rail and a vertical grip....so I'm not worried about heat too much.
I checked the link... and... Out Of Stock. I'm glad the American People are waking up... finally... but crap... I'm getting tired of seeing Out Of Stock. Magpul has listed most items as Dealer Only. Spikes has a 12 month wait for BCGs and lowers.... And the rare one you do find for sale on the Internet is priced so high no one in their right mind would buy it. OK... enough ranting.