Laser Gun (Fallout 4)

The AER9 laser gun is a weapon in Fallout 4. Variants include the laser pistol and the laser rifle.

Characteristics
Compared to similarly modified Institute lasers, laser guns offer superior damage with low rate of fire. They can be found throughout the Commonwealth, but they're particularly popular with the Brotherhood of Steel and the Gunners.

Variants

 * Old Faithful, a unique laser pistol that does double damage if the target is at full health. It is sold by Arturo Rodriguez in Diamond City.
 * Survivor's Special, a unique laser rifle that deals more damage the lower your health is. It is a potential reward for completing the quest The Lost Patrol. It is also possible to steal the item from Paladin Brandis, before the The Lost Patrol quest ends.
 * Good Intentions, a unique laser rifle that, on critical hits, causes targets to frenzy. It is carried by Clint.
 * Prototype UP77 "Limitless Potential", a unique laser pistol, can be found by pressing a button to open a hidden room: Requires Lockpick level safe, in the University Credit Union. It has unlimited ammo capacity and never requires reloading, the magazine size is equal to all fusion cells currently in inventory.
 * Righteous Authority, a unique laser rifle, given as a reward for completing the Call to Arms quest. Its critical hits do double damage and the critical meter fills 15% faster.
 * Wazer Wifle, a unique Laser rifle similar to the Prototype UP77 "Limitless Potential", it is given as a reward for completing three unmarked quests for Shaun after ending the main quest with any faction.