When playing Borderlands 2, players have the option to toggle Weapon Aim On or Off. This function sets your Iron Sight to be active only when the aiming key/button is pressed, or to keep it locked with the click/press of a button. You can toggle Weapon Aim on or off by doing the following:
- Pause Game
- Select “Options”
- Select “Gameplay”
- Set “Weapon Aim Toggle” to On/Off