How about the handguards? are the heat shield mounted with rivets as we are triggered believe that? How do they Assess to the actual factor? Of course, I am positive the higher receiver is Colt, along with the BCG. It is admittedly the barrel that is definitely questionable to me. https://beaumolie.blogacep.com/36449538/the-basic-principles-of-colt-combat-unit-rail-gun-45