These are the one copy handguards that have minimal hex headed screws that maintain the heat shields set up. The replica Colt handguards even have rivets (much like the authentic thing) holding the heat shields in place. Colt has marketed these Reissues to collectors who are gullible more than enough https://gen-directory.com/listings12970653/top-guidelines-of-colt-combat-unit-rail-gun-45