Eyes Up is an origin trait in Destiny 2 that can appear on 6 weapons. An enhanced version exists on crafted and some newer weapons.
What Eyes Up does
This weapon gains reload speed, range, and slightly increased damage against combatants for a short time when combat begins. Final blows extend and enhance this bonus.
Enhanced version
This weapon gains reload speed, range, and slightly increased damage against combatants for a short time when combat begins. Final blows extend and enhance this bonus by an improved amount.