# Old Faithful

For an overview of laser pistol models throughout the Fallout series, see Laser pistol. |

Old Faithful | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

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This item is generated from leveled lists, based on the player's level. Data shown refers to preset elements guaranteed to spawn. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

[[Category:Fallout 4 unique laser pistol/rifles]]

**Old Faithful** is a unique weapon in *Fallout 4*.

## Contents

## Background

The standard energy sidearm of the United States Armed Forces, the AEP7 replaced the AEP5 model. Boasting redesigned internal components, including a new photonic focusing chamber and completely redesigned focusing crystal pattern, the AEP7 offers a respectable damage output, excellent accuracy at range, and generous battery size. By taking advantage of new manufacturing techniques developed shortly before the Great War, it also boasted reduced weight and bulk compared to previous models.^{[1]}

It's entirely likely that if wartime logistic troubles did not delay development and deployment, the AEP7 and its superior version, the AEP9, would have entirely superseded the N99 10mm pistol as the standard sidearm of the U.S. military. As it stands, the Great War prevented it from being widely deployed, despite a large number of units being produced. Repair and calibration are generally recommended whenever a functional laser pistol is found.^{[1]}

## Characteristics

Old Faithful is a unique laser pistol bearing the Instigating prefix, allowing it to do double damage to targets that are at full health initially. At high levels, Old Faithful can spawn as a laser rifle instead.

### Modifications

### Capacitor

Slot | Damage | Fire Rate | Range | Accuracy | Weight | Value | Resources | Required Perks | |
---|---|---|---|---|---|---|---|---|---|

Standard | Base | +2.5% | +2.5% | 1x Adhesive 2x Circuitry |
None | ||||

Photon Exciter (Better Criticals I) | +100% critical charge
+100% critical damage multiplier |
0 | 0 | +10% | +10% | +5% | 1x Adhesive 2x Circuitry |
None | |

Beta Wave Tuner
(Armor Piercing I) |
Sets target on fire for 3 sec (3x magnitude) | +10% | +10% | +10% | 2x Adhesive 2x Circuitry |
None | |||

Boosted Capacitor
(More Damage I) |
+25% | +10%
-10% capacity |
+15% | 2x Adhesive 5x Circuitry |
None | ||||

Photon Agitator
(Better Critcials II) |
+200% critical damage multiplier | +20% capacity | +15% | +20% | +20% | 3x Adhesive 5x Circuitry |
Science! 1 | ||

Gamma Wave Emitter
(Armor Piercing II) |
Sets target on fire for 3 sec (5x magnitude) | +20% capacity | +20% | +20% | +25% | 4x Adhesive 5x Circuitry |
Science! 1 | ||

Maximized Capacitor
(More Damage II) |
+50% damage | +20% | +30% | 5x Adhesive 6x Circuitry |
Science! 2 | ||||

Boosted Photon Agitator
(More Damage + Better Criticals II) |
+25% damage
+200% critical damage multiplier |
+30% capacity | +15% | +30% | +35% | 6x Adhesive 6x Circuitry |
Science! 2 | ||

Boosted Gamma Wave Emitter
(More Damage + Armor Piercing II) |
+25% damage
Sets target on fire for 3 sec (5x magnitude) |
+20% | +30% | +30% | 7x Adhesive 6x Circuitry |
Science! 2 | |||

Overcharged Capacitor
(More Damage III) |
+75% damage | +10% capacity | +30% | +45% | 8x Adhesive 8x Circuitry |
Science! 3 |

### Barrel

Slot | Damage | Fire Rate | Range | Accuracy | Weight | Value | Resources | Required Perks | |
---|---|---|---|---|---|---|---|---|---|

Short Barrel | -10% AP cost | 9 x Base | +10% accuracy
-10% recoil |
+25% | +5% | 1x Adhesive 1x Circuitry 2x Fiber Optics 2x Glass 2x Plastic 2x Screw |
None | ||

Long Barrel | +9.6% | +10% AP cost
+3% iron sights transition -10% capacity |
16 x Base | +40% sighted accuracy
-50% hip fire accuracy -15% recoil |
+50% | +10% | 1x Adhesive 2x Circuitry 3x Fiber Optics 2x Glass 5x Plastic 3x Screw |
None | |

Automatic Barrel | -25% | Full auto
+25% AP cost +3% iron sights transition -10% capacity |
16 x Base | +20% sighted accuracy
-100% hip fire accuracy |
+60% | +15% | 2x Adhesive 2x Circuitry 3x Crystal 5x Fiber Optics 4x Gear 1x Oil 7x Plastic 4x Screw 2x Silver |
Science! 1 | |

Sniper Barrel | +75% damage at full charge (3 sec)
-50% snap fire |
Charging
+35% AP cost +5% iron sights transition -70% capacity |
18 x Base | +20% sighted accuracy
-100% hip fire accuracy |
+60% | +20% | 2x Adhesive 3x Circuitry 4x Crystal 8x Fiberglass 10x Plastic 5x Screw 2x Silver |
Science! 1 | |

Improved Short Barrel | +21% | -10% AP cost | 9 x Base | +10% accuracy
-10% recoil |
+25% | +25% | 2x Adhesive 2x Circuitry 1x Crystal 2x Fiberglass 3x Fiber Optics 3x Glass 2x Screw 3x Silver |
Science! 1 | |

Improved Long Barrel | +34% | +10% AP cost
+3% iron sights transition -10% capacity |
16 x Base | +40% sighted accuracy
-50% hip fire -15% recoil |
+50% | +30% | 4x Adhesive 3x Circuitry 1x Crystal 5x Fiberglass 6x Fiber Optics 4x Glass 4x Screw 4x Silver |
Science! 2 | |

Improved Sniper Barrel | +125% damage at full charge (3 sec)
-50% snap fire |
Charging
+35% AP cost +5% iron sights transition -70% capacity |
18 x Base | +20% sighted accuracy
-100% hip fire accuracy |
+50% | +40% | 5x Adhesive 5x Circuitry 6x Crystal 10x Fiberglass 16x Fiber Optics 4x Gold 6x Screw 2x Spring |
Science! 2 | |

Improved Automatic Barrel | -15% | Full auto
+25% rate of fire +25% AP cost +3% iron sights transition -10% capacity |
16 x Base | +20% sighted accuracy
-100% hip fire accuracy |
+60% | +35% | 4x Adhesive 4x Circuitry 5x Crystal 7x Fiberglass 10x Fiber Optics 6x Gears 3x Gold 1x Oil 5x Screw |
Science! 2 |

### Grip

- Adding a stock will turn the pistol into a Laser rifle.

Slot | Damage | Fire Rate | Accuracy | Weight | Value | Resources | Required Perks | |
---|---|---|---|---|---|---|---|---|

Standard Grip | -50% bash damage | -10% AP cost | +2.5% | +2.5% | 1x Adhesive 2x Plastic 2x Screw |
None | ||

Comfort Grip | -50% bash damage | -10% AP cost | +5% accuracy
-5% recoil |
+5% | +10% | 2x Adhesive 4x Plastic 3x Screw |
None | |

Short Stock | +20% AP cost
+5% iron sights transition |
+7% stability
+40% sighted accuracy -15% recoil |
+20% | +20% | 2x Adhesive 7x Plastic 5x Screw |
None | ||

Sharpshooter's Grip | -50% bash damage | -15% AP cost | +15% accuracy
-15% recoil |
+10% | +25% | 3x Adhesive 4x Fiberglass 4x Steel |
Science! 1 | |

Full Stock | +20% AP cost
+10% iron sights transition |
+7% stability
+40% sighted accuracy -20% recoil |
+30% | +30% | 4x Adhesive 10x Plastic 6x Screw |
Science! 1 | ||

Marksman's Stock | +20% AP cost
+10% iron sights transition |
+9% stability
+40% sighted accuracy -25% recoil |
+40% | +40% | 5x Adhesive 10x Fiberglass 1x Rubber 6x Screw 3x Spring |
Science! 2 | ||

Recoil Compensating Stock | +20% AP cost
+10% iron sights transition |
+7% stability
+40% sighted accuracy -30% recoil |
+45% | +50% | 6x Adhesive 11x Fiberglass 1x Rubber 8x Screw 6x Spring |
Science! 2 |

### Sights

Slot | Effect | Accuracy | Weight | Value | Resources | Required Perks | |
---|---|---|---|---|---|---|---|

Standard Sights | Base | +2.5% | +2.5% | 1x Adhesive 2x Plastic |
None | ||

Improved Sights | +5% iron sight transition | +5% sighted accuracy | +2.5% | +5% | 1x Adhesive 2x Plastic |
None | |

Short Scope | x4 scope +10% iron sight transition +30% AP cost |
-20% stability +20% sighted accuracy |
+20% | +20% | 2x Adhesive 2x Glass 4x Plastic 2x Screw |
None | |

Reflex Sight | x2 zoom -15% AP cost -10% iron sights transition |
+15% sighted accuracy | 0+10% | +25% | 2x Adhesive 2x Fiberglass 2x Fiber Optics 2x Glass 1x Nuclear Material 2x Screw 1x Silver |
Science! 1 | |

Medium Scope | x6 scope +40% AP cost +15% iron sights transition |
-20% stability +20% sighted accuracy |
+25% | +40% | 3x Adhesive 3x Glass 5x Plastic 2x Screw |
Science! 1 | |

Long Scope | x10 scope +50% AP cost +2% sighted transition |
-20% stability +20% sighted accuracy |
+30% | +50% | 4x Adhesive 5x Glass 6x Plastic 2x Screw |
Science! 2 | |

Short Night Vision | x4 scope (night vision) +10% iron sight transition +30% AP cost |
-20% stability +20% sighted accuracy |
+20% | +20% | 4x Adhesive 2x Circuitry 4x Fiberglass 3x Fiber Optics 3x Glass 2x Nuclear Material 2x Screw 2x Silver |
Science! 2 | |

Medium Night Vision | x6 scope (night vision) +40% AP cost +15% iron sights transition |
-20% stability +20% sighted accuracy |
+25% | +75% | 4x Adhesive 3x Circuitry 5x Fiberglass 5x Fiber Optics 5x Glass 3x Nuclear Material 2x Screw 2x Silver |
Science! 2 | |

Long Night Vision | x10 scope (night vision) +50% AP cost +2% sighted transition |
-20% stability +20% sighted accuracy |
+30% | +85% | 5x Adhesive 5x Circuitry 6x Fiberglass 6x Fiber Optics 6x Glass 2x Gold 4x Nuclear Material 2x Screw |
Science! 2 | |

Short Recon Scope | x4 scope (monochrome, tracks targets) +10% iron sight transition +30% AP cost |
-20% stability +20% sighted accuracy |
+20% | +100% | 6x Adhesive 6x Circuitry 8x Crystal 6x Fiberglass 8x Fiber Optics 3x Gold 5x Nuclear Material 3x Screw |
Science! 3 | |

Long Recon Scope | x10 scope (monochrome, tracks targets) +50% AP cost +2% sighted transition |
-20% stability +20% sighted accuracy |
+35% | +100% | 6x Adhesive 6x Circuitry 8x Crystal 6x Fiberglass 8x Fiber Optics 3x Gold 5x Nuclear Material 3x Screw |
Science! 3 |

### Muzzle

Slot | Effect | Fire Rate | Range | Accuracy | Weight | Value | Resources | Required Perks | |
---|---|---|---|---|---|---|---|---|---|

No Muzzle | None | ||||||||

Beam Splitter (scattergun) | +10% damage Splits beam into four projectiles |
-10% | -2 x Base Damage nullified beyond maximum range |
Override: High recoil, low accuracy | +15% | +10% | 3x Adhesive 2x Glass 4x Plastic 3x Screw 2x Silver |
Science! 1 | |

Beam Focuser (extended range) | +2 x Base | +20% accuracy -15% recoil |
+20% | +15% | 3x Adhesive 2x Glass 4x Plastic 2x Screw 2x Silver |
Science! 1 | |||

Gyro Compensating Lens (compensator) | -1 x Base | -25% recoil | +30% | +20% | 2x Adhesive 2x Circuitry 3x Glass 5x Plastic 2x Screw 3x Silver 2x Spring |
Science! 1 | |||

Amplified Beam Splitter (scattergun II) | +10% damage Splits beam into four projectiles |
-10% | -2 x Base Damage nullified beyond maximum range |
Override: High recoil, low accuracy (+25% accuracy vs. regular splitter) | +15% | +40% | 4x Adhesive 6x Fiberglass 4x Glass 3x Gold 4x Screw |
Science! 2 | |

Fine-Tuned Beam Focuser (extended range II) | +3 x Base | +30% accuracy -15% recoil |
+20% | +30% | 4x Adhesive 7x Fiberglass 4x Glass 3x Gold 4x Screw |
Science! 2 | |||

Quantum Gyro Compensating Lens (compensator II) | -1 x Base | -35% recoil | +30% | +35% | 5x Adhesive 2x Circuitry 8x Fiberglass 4x Glass 3x Gold 5x Screw 3x Spring |
Science! 3 |

## Variants

- Pistols

- Rifles

- Level-dependent

- Old Faithful
- Good Intentions
- Prototype UP77 "Limitless Potential"

## Locations

- Diamond City: Sold by Arturo Rodriguez.

## References

- ↑
^{1.0}^{1.1}Citadel terminals. Terminal, AEP7 Laser Pistol:*"The AEP7 Laser Pistol was put into service to replace the AEP5, a model which was notorious for its problems with overheating. The AEP7 features a new design in the photonic focusing chamber as well as an entirely redesigned focusing crystal pattern. The bulk and weight have both been reduced over previous models and it was likely that within the new few development cycles, the successor to the AEP7 would replace the n99 10mm as the standard issue sidearm for all forces.**The AEP7 took advantage of new manufacturing techniques developed shortly before the Great War. Although many were produced, most did not make it into field service because of logistics problems concerning their deployment during active wartime.**The AEP7 can be a rare find in the Capital Wasteland, and any models that are produced should be returned to the Citadel for repair and recalibrating before field deployment."*