These are the one replica handguards which have minor hex headed screws that hold the warmth shields in position. The reproduction Colt handguards actually have rivets (much like the serious issue) holding the warmth shields set up. Whether it is a bell condition, that might be correct for the Colt. https://remingtonzpdry.jts-blog.com/30502217/5-essential-elements-for-colt-m16a1-for-sale