I am looking to buy a new M4 style AR. I am looking for some input on all the different AR Manufacturers such as Stag Arms and Bushmaster. I am looking for quality (obviously) on top of reliability. I want 5.56. I'm just torn on what manufacturer to go with. I want to spend no more than like $900. I want the detachable carry handle, 16" barrel, collapsable stock, and like I said 5.56mm. Thanks for any feedback.