Not possible to make a night-vision sight, or I'm sure it would have been done many times before.
Because if I use the new BAS weapons...I am able to look through the scope of the gun without blocking out my view of everything else...
If all you want is an expanded field of view, then that is possible. Check out the WGL mod; their NVGs are clear and have a bigger field of view. I think Kegety's DXDLL also expands the NVG view.
The scope, like the Reflex, should only be in Nightvision...
Actually, Reflex sights (they aren't scopes) are not night vision scopes. You are thinking of "starlight" scopes.
Also, taking a look at the pics on your board, I feel compelled to point out that the carrying handle is removed when you put optics on an m4, such as a scope or reflex sight.
GB