Prototype UP77 "Limitless Potential"

The Prototype UP77 "Limitless Potential" is a unique laser gun in Fallout 4.
==Characteristics==
This unique laser gun possesses the Never Ending effect, which grants an unlimited ammo capacity and never needs to be reloaded, but still requires fusion cells to fire. 
===Weapon modifications===
The specific weapon modifications fitted to the gun when found are level dependent and will vary.
Slot 	Mod 	Description 	Modified name 	Science! rank	Form ID
Capacitor	Standard capacitor 	Standard. 	- 	- 	
Capacitor	Photon exciter 	Improved critical shot damage and accuracy. 	Excited 	- 	
Capacitor	Beta wave tuner 	Adds burning damage. Improved range. 	Incendiary 	- 	
Capacitor	Boosted capacitor 	Improved damage. Reduced ammo capacity. 	Boosted 	- 	
Capacitor	Photon agitator 	Superior critical shot damage, accuracy and ammo capacity. 	Agitated 	- 	
Capacitor	Gamma wave emitter 	Adds better burning damage. Better range and ammo capacity. 	Fiery 	1 	
Capacitor	Maximized capacitor 	Better damage. 	Maximized 	2 	
Capacitor	Boosted photon agitator 	Superior critical shot damage and ammo capacity. Better accuracy. Improved damage. 	Boosted agitated 	2 	
Capacitor	Boosted gamma wave emitter 	Adds better burning damage. Superior ammo capacity. Better range. Improved damage. 	Boosted fiery 	2 	
Capacitor	Overcharged capacitor 	Superior damage. Improved ammo capacity. 	Overcharged 	3 	
Barrel 	Short barrel 	Standard. 	Short (for rifles) 	- 	
Barrel 	Long barrel 	Better range. Improved damage, sighted accuracy and recoil. Reduced ammo capacity. Poor hip-fire accuracy. 	Long (for pistols) 	- 	
Barrel 	Automatic barrel 	Improved rate of fire, range and sighted accuracy. Worse recoil. Reduced ammo capacity. Poor hip-fire accuracy. 	Automatic 	1 	
Barrel 	Sniper barrel 	Superior damage and range. Worse recoil. Poor ammo capacity and hip-fire accuracy. 	Charging 	1 	
Barrel 	Improved short barrel 	Improved damage. 	Improved short (for rifles)Improved	1 	
Barrel 	Improved long barrel 	Better damage and range. Improved sighted accuracy and recoil. Reduced ammo capacity. Poor hip-fire accuracy. 	Improved long (for pistols)Improved	2 	
Barrel 	Improved automatic barrel 	Superior rate of fire. Improved damage, range and sighted accuracy. Worse recoil. Reduced ammo capacity. Poor hip-fire accuracy.	Improved automatic 	2 	
Barrel 	Improved sniper barrel 	Exceptional damage. Superior range. Worse recoil. Poor ammo-capacity and hip-fire accuracy. 	Improved charging 	2 	
Grip 	Standard grip 	Standard. 	Pistol 	- 	
Grip 	Comfort grip 	Improved recoil and hip-fire accuracy. 	Comfort grip pistol 	- 	
Grip 	Short stock 	Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash. 	Rifle 	- 	
Grip 	Sharpshooter's grip 	Better recoil and hip-fire accuracy. 	Sharpshooter's pistol 	1 	
Grip 	Full stock 	Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash. 	Rifle 	1 	
Grip 	Markman's stock 	Exceptional sighted accuracy. Superior recoil and aim with scopes. Improved bash. 	Marksman's rifle 	2 	
Grip 	Recoil compensating stock 	Exceptional sighted accuracy and recoil. Better aim with scopes. Improved bash. 	Recoil compensated rifle 	2 	
Sight 	Standard sights 	Standard. 	- 	- 	
Sight 	Improved sights 	Improved focus and sighted accuracy. 	Sighted 	- 	
Sight 	Short scope 	Improved magnification. Superior sighted accuracy. 	Scoped 	- 	
Sight 	Reflex sight 	Better focus and sighted accuracy. 	Tactical 	1 	
Sight 	Medium scope 	Better magnification. Superior sighted accuracy. 	Scoped 	1 	
Sight 	Long scope 	Superior magnification and sighted accuracy. 	Scoped 	2 	
Sight 	Short night vision scope 	Night vision. Improved magnification. Superior sighted accuracy. 	Night-vision 	2 	
Sight 	Medium night vision scope 	Night vision. Better magnification. Superior sighted accuracy. 	Night-vision 	2 	
Sight 	Long night vision scope 	Night vision. Superior magnification and sighted accuracy. 	Night-vision 	2 	
Sight 	Short recon scope 	Tracks targets. Improved magnification. Superior sighted accuracy. 	Recon 	3 	
Sight 	Long recon scope 	Tracks targets. Superior magnification and sighted accuracy. 	Recon 	3 	
Muzzle 	No muzzle 	- 	- 	- 	-
Muzzle 	Beam splitter 	Splits beams into multiple projectiles covering a wider area. Poor accuracy and range. 	Scattered 	1 	
Muzzle 	Beam focuser 	Better range, accuracy, and recoil. 	Focused 	1 	
Muzzle 	Gyro compensating lens 	Superior recoil. Reduced range. 	Targeting 	1 	
Muzzle 	Amplified beam splitter 	Splits beams into multiple projectiles covering a wider area. Reduced accuracy. Poor range. 	Improved scattered 	2 	
Muzzle 	Fine-tuned beam focuser 	Super range and accuracy. Better recoil. 	Improved focused 	2 	
Muzzle 	Quantum gyro compensating lens	Exceptional recoil. Reduced range. 	Improved targeting 	3 	
==Variants==
* Laser gun, the standard variant.
* Old Faithful, a unique laser pistol with the Instigating effect, which 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 pistol with the Bloodied effect, which deals more damage the lower your health is. It is a potential reward for completing The Lost Patrol, or it can be stolen from Paladin Brandis before completing the quest.
* Good Intentions, a unique laser rifle with the Enraging effect which, on critical hits, causes targets to frenzy. It is carried by Clint.
* Righteous Authority, a unique laser rifle. With the Lucky effect, its critical hits do double damage and the critical meter fills 15% faster. It is given as a reward for completing Call to Arms.
* Wazer Wifle, a unique laser rifle with the Never Ending effect, which gives the weapon unlimited ammo capacity and remove the need for reloading. It is given as a reward for completing three unmarked quests for Shaun after finishing the main quest with any faction.
* Protectron's Gaze, a unique laser pistol with the Rapid ability, boosting its fire rate by 25% and its reload time by 15%. It is carried by the Mechanist.
==Location==
University Point, University Credit Union: Inside the Credit Union bank vault, locked behind a Novice-locked terminal. The prototype is located inside a hidden compartment on the right-hand wall opened using a red button inside a Master-locked safe on the second row of the wall safes. The prototype is on the large table in the middle of the room.
==Notes==
In the Prima game guide, this weapon is falsely listed as Prototype PA77. It also says it is inside of a safe.
==Bugs==
 Two prototype UP77's with different mods installed may spawn.
==Gallery==
Prototype_UP77_Limitless_Potential.jpg|Pistol variant
Prototype_UP77_Limitless_Potential_-_Shotgun_rifle.jpg|Shotgun rifle variant
Prototype_UP77_Limitless_Potential_-_Sniper_rifle.jpg|Sniper rifle variant
Category:Fallout 4 unique weapons
Category:United States Armed Forces technology
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