ak m4 fast zoom

[notgood]

Unlike mp5, ak and m4 are slow to zoom. I want to know how to change it like mp5.


m4 zoom:

mp5 zoom:

mp5 finishes in 1st step zoom, but m4 zooms one more time after 1st step.

 

[_=Gigant=_]

Unlike mp5, ak and m4 are slow to zoom. I want to know how to change it like mp5.
I need information about this. please Help

https://www.youtube.com/watch?v=2SKToXZj43E