Experiment 18-A is an unique weapon in Fallout 4.
Characteristics[]
Experiment 18-A is a unique automatic plasma rifle. The rifle has the Rapid Legendary effect, which grants the weapon a 25% faster fire rate and 15% faster reload.
Weapon modifications[]
| Slot | Mod | Description | Modified name | Science! rank |
|---|---|---|---|---|
| Capacitor | Standard capacitor | Standard. | - | - |
| Beta wave tuner | Adds burning damage. Improved range. | Incendiary | - | |
| Boosted capacitor | Improved damage. Reduced ammo capacity. | Boosted | - | |
| Photon exciter | Improved critical shot damage and accuracy. | Excited | - | |
| Photon agitator | Superior critical shot damage. Better accuracy and ammo capacity. | Agitated | 2 | |
| Gamma wave emitter | Adds better burning damage. Better range and ammo capacity. | Fiery | 2 | |
| Maximized capacitor | Better damage. | Maximized | 2 | |
| Boosted photon agitator | Superior critical shot damage and ammo capacity. | Boosted agitated | 3 | |
| Boosted gamma wave emitter | Adds better burning damage. Superior ammo capacity. Better range. Improved damage. | Boosted fiery | 3 | |
| Overcharged capacitor | Superior damage. Improved ammo capacity. | Overcharged | 4 | |
| Barrel | Short barrel | Standard. | Short (for rifles) | - |
| Splitter | Fire multiple projectiles. Improved damage. Poor accuracy. | Scattergun | - | |
| Automatic barrel | Improved rate of fire, range and sighted accuracy. Worse recoil. Reduced ammo capacity. Poor hip-fire accuracy. | Automatic | 1 | |
| Sniper barrel | Superior damage and range. Worse recoil. Poor ammo capacity and hip-fire accuracy. | Long (for pistols) | 2 | |
| Flamer barrel | Flame-thrower conversion. | Thrower | 2 | |
| Improved short barrel | Improved damage. | Improved Improved short (for rifles) |
2 | |
| Improved splitter | Fires multiple projectiles. Better damage. Poor accuracy. | Scattergun | 3 | |
| Improved automatic barrel | Superior rate of fire. Improved damage, range and sighted accuracy. Worse recoil. Reduced ammo capacity. Poor hip-fire accuracy. | Improved automatic | 3 | |
| Improved sniper barrel | Exceptional damage. Superior range. Worse recoil. Poor ammo capacity and hip-fire accuracy. | Improved Improved long (for pistols) |
3 | |
| Grip | Standard grip | Standard. | - | - |
| Comfort grip | Improved recoil and hip-fire accuracy. | Comfort grip | - | |
| Standard stock | Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash. | Rifle | 2 | |
| Markman's stock | Exceptional sighted accuracy. Superior recoil and aim with scopes. Improved bash. | Marksman's rifle | 3 | |
| Recoil compensating stock | Exceptional sighted accuracy and recoil. Better aim with scopes. Improved bash. | Recoil compensated rifle | 3 | |
| Sight | Standard sights | Standard. | - | - |
| Short scope | Improved magnification. Superior sighted accuracy. | Scoped | - | |
| Reflex sight | Better focus and sighted accuracy. | Tactical | 1 | |
| Medium scope | Better magnification. Superior sighted accuracy. | Scoped | 2 | |
| Long scope | Superior magnification and sighted accuracy. | Scoped | 2 | |
| Short night vision scope | Night vision. Improved magnification. Superior sighted accuracy. | Night-vision | 3 | |
| Medium night vision scope | Night vision. Better magnification. Superior sighted accuracy. | Night-vision | 3 | |
| Long night vision scope | Night vision. Superior magnification and sighted accuracy. | Night-vision | 3 | |
| Short recon scope | Tracks targets. Improved magnification. Superior sighted accuracy. | Recon | 4 | |
| Long recon scope | Tracks targets. Superior magnification and sighted accuracy. | Recon | 4 |
Variants[]
- Plasma gun, the common variant found around the Commonwealth.
- Sentinel's Plasmacaster, a unique plasma gun with the Instigating Legendary effect. It is sold by Proctor Teagan in the Prydwen after completing A New Dawn.
Locations[]
- Experiment 18-A can be purchased from the synth requisition officer in the Institute.
