All of the weapon stats are pretty self explanatory and does experience noticeable differences with increase/decrease. Handling, however, I am unable to tell what it actually does.
Even increasing/decreasing the stat with the help of attachments/variants doesn't seem to change anything (tested in the shooting range).
What does handling affect?
4 Answers
The Handling stat affects how fast you can switch gun (with that gun), Aim Down Sight (ADS), and reload. Everything that has to do with handling the gun itself.
Edit: Although most online forums tend to agree with my first statement (up here), a lot of people tend to agree with what this video says: Handling only slightly reduces the hipfire recoil.
2handling is the hip fire spread (confirmed by driftor)
0It affects how fast you can maneuver the weapon.
1Handling determines how fast you can ADS the weapon.
1