Every so often I get the desire to build or buy a carbine with an A2 upper so I would have fixed iron sights. But every time I think about it, I realize it would be just like throwing a carry handle on a current upper I own. Without the option of being able to take the carry handle off when I want to run an optic. So I started leaving a gun set up with a carry handle.
Maybe, someday, when I have more money and places to put stuff, I’ll get a carbine with an A2 upper.