History of Overflow

Overview

Overflow is a Trait weapon perk, introduced in Season 6: picking up Special or Heavy ammo automatically loads the weapon beyond its normal magazine capacity. It is a Magazine stat perk. Its enhanced version raises the overfill limit.

Tips

Overflow only triggers on Special or Heavy ammo, not Primary ammo, so it pays off most when you are picking up those ammo drops. Shattered Vault calls it an optimal perk for low-ammo situations and lists it as useful on all weapon types.