Aim Assist

Aim Assist is a weapon affix that causes projectiles to be aimed more accurately upon firing - sometimes described as Bullet Bending. The projectiles don't curve, like with Homing, they just start a little more accurate.

If you need to put a lead on a far away target, Aim Assist can be detrimental.

Hand Cannons get a little bit of hidden Aim Assist.

Under the game options, Mouse/Controller Aim Assist not only adds hidden Aim Assist as a stat, but also crosshair magnetism (where your aim is pulled toward enemies).