Quote Originally Posted by 26 Inf View Post
One reason for building one without a FA is if you are a lefty. It gets in the way of operating and ambi charging handle IMO.
I am lefty and it has never gotten in the way.

I have used the F/A many times over the decades. I would not call it a necessity though as the standard technique on just about every other platform is to re-rack which you can certainly do.