HAIR TRIGGER - This weapon doesn't require a full trigger pull to fire.
Fires the instant trigger pressure is detected
In Destiny, HAIR TRIGGER is a Weapon Upgrade that can be found on many Uncommon Weapons in the game. Weapons in Destiny pull each Upgrade at random from specific pools (with a few Weapons that are an exception).
To see more info on exactly which Weapons this Upgrade can be found upon click the link below:
To see more about how this Weapon Upgrade fits into these pools, please click the links below:
HAND CANNON WEAPON UPGRADES
SCOUT RIFLE WEAPON UPGRADES
SHOTGUN WEAPON UPGRADES
SNIPER RIFLE WEAPON UPGRADES
ROCKET LAUNCHER WEAPON UPGRADES