I've gone the build route and I don't want to go that way again, and I've gone the M4 route, so I don't need one of those. What I want now is a factory built AR-15 in the A2 configuration. My vision and arthritis caused some problems for me in my building efforts, so I'm ruling that option out. I wasn't happy with the process or the finished product. So, any suggestions? I see Stag Arms has the Model 4, but that is the only one I was able to find. If you know of other companies making a true A2 version I would really appreciate a heads up on them. Yes, I will consider buying a complete upper and a complete lower, but I just can't see close in well enough to build from scratch. Thanks for your help.