History of Grenades and Horseshoes

Grenades and Horseshoes is a Season 7 legendary weapon trait on Truth. Projectiles detonate when they come within close proximity of their target, rather than needing a direct hit.

The game data lists it only on Truth, so it is a single-weapon trait. Its practical value is for rounds that would otherwise narrowly miss a fast or small target, since they still go off near it.