Prototype UP77 "Limitless Potential"

===Weapon modifications===
The specific weapon modifications fitted to the gun when found are level dependent and will vary.

{|class="va-table va-tablecenter va-table-full"
! Slot
! Mod
! Description
! Modified name
! [[Science!]] rank
! [[Form ID|Base ID]]
|-
|rowspan="10" | Capacitor
| [[Standard capacitor (Fallout 4)|Standard capacitor]]
| Standard.
| -
| -
| {{ID|001a8a88}}
|-
| [[Photon exciter]]
| Improved critical shot damage and accuracy.
| Excited
| -
| {{ID|00187aa2}}
|-
| [[Beta wave tuner]]
| Adds burning damage. Improved range.
| Incendiary
| -
| {{ID|00187aa0}}
|-
| [[Boosted capacitor]]
| Improved damage. Reduced ammo capacity.
| Boosted
| -
| {{ID|00187aa4}}
|-
| [[Photon agitator]]
| Superior critical shot damage, accuracy and ammo capacity.
| Agitated
| -
| {{ID|00187aa3}}
|-
| [[Gamma wave emitter (Fallout 4)|Gamma wave emitter]]
| Adds better burning damage. Better range and ammo capacity.
| Fiery
| 1
| {{ID|00187aa1}}
|-
| [[Maximized capacitor]]
| Better damage.
| Maximized
| 2
| {{ID|00187aa7}}
|-
| [[Boosted photon agitator]]
| Superior critical shot damage and ammo capacity. Better accuracy. Improved damage.
| Boosted agitated
| 2
| {{ID|00187aa6}}
|-
| [[Boosted gamma wave emitter]]
| Adds better burning damage. Superior ammo capacity. Better range. Improved damage.
| Boosted fiery
| 2
| {{ID|00187aa5}}
|-
| [[Overcharged capacitor]]
| Superior damage. Improved ammo capacity.
| Overcharged
| 3
| {{ID|00187aa8}}
|-
|rowspan="8" | Barrel
| [[Short barrel (Fallout 4)|Short barrel]]
| Standard.
| Short (for rifles)
| -
| {{ID|00187a8e}}
|-
| [[Long barrel (Fallout 4)|Long barrel]]
| Better range. Improved damage, sighted accuracy and recoil. Reduced ammo capacity. Poor hip-fire accuracy.
| Long (for pistols)
| -
| {{ID|00187a8c}}
|-
| [[Automatic barrel (Fallout 4)|Automatic barrel]]
| Improved rate of fire, range and sighted accuracy. Worse recoil. Reduced ammo capacity. Poor hip-fire accuracy.
| Automatic
| 1
| {{ID|00187a90}}
|-
| [[Sniper barrel (Fallout 4)|Sniper barrel]]
| Superior damage and range. Worse recoil. Poor ammo capacity and hip-fire accuracy.
| Charging
| 1
| {{ID|00187a92}}
|-
| [[Improved short barrel (Fallout 4)|Improved short barrel]]
| Improved damage.
| Improved short (for rifles)<br />Improved
| 1
| {{ID|00187a8f}}
|-
| [[Improved long barrel (Fallout 4)|Improved long barrel]]
| Better damage and range. Improved sighted accuracy and recoil. Reduced ammo capacity. Poor hip-fire accuracy.
| Improved long (for pistols)<br />Improved
| 2
| {{ID|00187a8d}}
|-
| [[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
| {{ID|00187a91}}
|-
| [[Improved sniper barrel]]
| Exceptional damage. Superior range. Worse recoil. Poor ammo-capacity and hip-fire accuracy.
| Improved charging
| 2
| {{ID|00187a3}}
|-
|rowspan="7" | Grip
| [[Standard grip (Fallout 4)|Standard grip]]
| Standard.
| Pistol
| -
| {{ID|001a8a87}}
|-
| [[Comfort grip (Fallout 4)|Comfort grip]]
| Improved recoil and hip-fire accuracy.
| Comfort grip pistol
| -
| {{ID|00187a94}}
|-
| [[Short stock (Fallout 4)|Short stock]]
| Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash.
| Rifle
| -
| {{ID|00187a99}}
|-
| [[Sharpshooter's grip]]
| Better recoil and hip-fire accuracy.
| Sharpshooter's pistol
| 1
| {{ID|00187a95}}
|-
| [[Full stock (Fallout 4)|Full stock]]
| Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash.
| Rifle
| 1
| {{ID|00187a96}}
|-
| [[Marksman's stock]]
| Exceptional sighted accuracy. Superior recoil and aim with scopes. Improved bash.
| Marksman's rifle
| 2
| {{ID|00187a97}}
|-
| [[Recoil compensating stock (Fallout 4)|Recoil compensating stock]]
| Exceptional sighted accuracy and recoil. Better aim with scopes. Improved bash.
| Recoil compensated rifle
| 2
| {{ID|00187a98}}
|-
|rowspan="11" | Sight
| [[Standard sights (Fallout 4)|Standard sights]]
| Standard.
| -
| -
| {{ID|0001d374}}
|-
| [[Improved sights]]
| Improved focus and sighted accuracy.
| Sighted
| -
| {{ID|00187ab2}}
|-
| [[Short scope (Fallout 4)|Short scope]]
| Improved magnification. Superior sighted accuracy.
| Scoped
| -
| {{ID|00187aad}}
|-
| [[Reflex sight (Fallout 4)|Reflex sight]]
| Better focus and sighted accuracy.
| Tactical
| 1
| {{ID|00187ab1}}
|-
| [[Medium scope (Fallout 4)|Medium scope]]
| Better magnification. Superior sighted accuracy.
| Scoped
| 1
| {{ID|00187aab}}
|-
| [[Long scope (Fallout 4)|Long scope]]
| Superior magnification and sighted accuracy.
| Scoped
| 2
| {{ID|00187aa9}}
|-
| [[Short night vision scope (Fallout 4)|Short night vision scope]]
| Night vision. Improved magnification. Superior sighted accuracy.
| Night-vision
| 2
| {{ID|00187aae}}
|-
| [[Medium night vision scope]]
| Night vision. Better magnification. Superior sighted accuracy.
| Night-vision
| 2
| {{ID|00187aac}}
|-
| [[Long night vision scope (Fallout 4)|Long night vision scope]]
| Night vision. Superior magnification and sighted accuracy.
| Night-vision
| 2
| {{ID|00187aaa}}
|-
| [[Short recon scope (Fallout 4)|Short recon scope]]
| Tracks targets. Improved magnification. Superior sighted accuracy.
| Recon
| 3
| {{ID|002492dc}}
|-
| [[Long recon scope (Fallout 4)|Long recon scope]]
| Tracks targets. Superior magnification and sighted accuracy.
| Recon
| 3
| {{ID|00187ab0}}
|-
|rowspan="7" | Muzzle
| ''No muzzle''
| -
| -
| -
| -
|-
| [[Beam splitter (Fallout 4)|Beam splitter]]
| Splits beams into multiple projectiles covering a wider area. Poor accuracy and range.
| Scattered
| 1
| {{ID|00187a9e}}
|-
| [[Beam focuser (Fallout 4)|Beam focuser]]
| Better range, accuracy, and recoil.
| Focused
| 1
| {{ID|00187a9c}}
|-
| [[Gyro compensating lens (Fallout 4)|Gyro compensating lens]]
| Superior recoil. Reduced range.
| Targeting
| 1
| {{ID|00187a9a}}
|-
| [[Amplified beam splitter]]
| Splits beams into multiple projectiles covering a wider area. Reduced accuracy. Poor range.
| Improved scattered
| 2
| {{ID|00187a9f}}
|-
| [[Fine-tuned beam focuser]]
| Super range and accuracy. Better recoil.
| Improved focused
| 2
| {{ID|00187a9d}}
|-
| [[Quantum gyro compensating lens]]
| Exceptional recoil. Reduced range.
| Improved targeting
| 3
| {{ID|00187a9b}}
|-
|}