well , as far as I have understood from the posts of my friends above, none of them has gives any cogent reason as to what makes the CQA from unbecoming a military grade rifle. Peolple say it is reliable , they dont clean it for prolong periods yet it bangs ecery time and do not fails them. It is accurate , withstand the beatings of various training etc etc , yet they say , no it iss not a military grade rifle. OK , then if you search on AR forums , you would read even vitrans writing they wished to install after market barrels or other accessories on their military issued cold M4s /ARs. Some even done that , though it was a violation of rules . So what would you say in this condition ? . isnt a colt , a military issued colt is not combat worthy or it is not a military grade weapon . If your criteria is being expansive only , then we suggest the militaries of the world to quit their comparatively cheap rifles in favor of more expansive ones