And how do you suppose I change the name of a link "I DID NOT MAKE" . I agree with PuFu, you act as thought your opinion is of utmost importance. Your not in charge of this project so trying to act like your by telling someone they can't have this or that really makes you look out of place. Oh and one more thing technically if we went all the way back, im pretty sure all m4, mk18, and hk416's were designed off the original ar15 plateform and modified over the years. So your continuity to try to make me look like I don't know firearms also makes your words completely irrelevant to me to near "Non- existant".