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The Slug Buster is a modular ranged weapon in Fallout 76, introduced in the Wastelanders update.

Characteristics[]

The Slug Buster is a unique plasma gun, which may only be obtained on an optional step during Buried Treasure. The weapon is geared towards V.A.T.S. and critical hits, and comes with a hidden custom mod ("Ra-Ra's Plasma Rifle") that provides a bonus 20% less AP cost effect. It shares modifications with the standard plasma gun.

It comes with the following mod configuration:

Weapon modifications[]

Capacitor
ModDescriptionEffectsDamage changeRange changeAccuracy changeAmmo capacity changeRequirementsResources
Calibrated beta wave tuner
(Severe)
+50% Critical Damage
+5% Hip-Fire Accuracy
+20% Ammo Capacity
Target takes 3Fire/s for 3 seconds
Note: Counts for Friendly Fire
+2.4+1+6Plan Read plan to learn
Science Expert 1 to craft
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
Calibrated+100% Critical Damage
+10% Hip-Fire Accuracy
+1Scrap to learn (15% chance)
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
Gamma wave emitter+20% Ammo CapacityTarget takes 3Fire/s for 3 seconds
Note: Counts for Friendly Fire
+2.4+6Scrap to learn (10% chance)
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
Prime+65% Damage to Scorched
Note: Uses Ultracite ammo
+25%Plan Read plan to learn
Science Master 1 to craft
Adhesive x2
Crystal x2
Nuclear material x4
Pure crimson flux x2
Pure violet flux x2
Screw x6
Steel x21
Ultracite x5
PulseDrains target power armor battery by 5%-15%Plan Read plan to learn
Science Expert 1 to craft
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
Refined beta wave tuner
(Refined Beta Wave)
+1% Aim Speed
+25% Hip-Fire Accuracy
+5% Sighted Accuracy
+20% Ammo Capacity
Target takes 3Fire/s for 3 seconds
Note: Counts for Friendly Fire
+2.4+2+6Plan Read plan to learn
Science Expert 1 to craft
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
StandardKnown by default
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
True+3% Aim Speed
+25% Hip-Fire Accuracy
+10% Sighted Accuracy
+2Scrap to learn (15% chance)
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10
Vicious+50% Critical Damage
+18% Hip-Fire Accuracy
+1Scrap to learn (15% chance)
Science Expert 1 to craft
Adhesive x1
Circuitry x1
Crystal x1
Nuclear material x2
Screw x3
Steel x10

Barrel
ModDescriptionDamage changeFire rate changeRange changeAccuracy changeAP cost changeRequirementsResources
Aligned automatic
(Automatic)
-1% Aim Speed
-75% Hip-Fire Accuracy
+50% Sighted Accuracy
+37% Recoil
-10% Ammo Capacity
-15%+58+84-15+20%Plan Read plan to learn
Science Expert 1 to craft
Adhesive x1
Circuitry x2
Crystal x2
Fiber optics x2
Gear x3
Oil x1
Screw x4
Silver x1
Steel x11
Aligned flamer
(Thrower)
+1% Aim Speed
+25% Hip-Fire Accuracy
+5% Sighted Accuracy
-22% Recoil
Ammo Capacity
+40.6%+58-72-76+8Scrap to learn (10% chance)
Science Expert 1 to craft
Adhesive x2
Asbestos x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x3
Steel x15
Aligned short
(Short)
+1% Aim Speed
+25% Hip-Fire Accuracy
+25% Sighted Accuracy
-22% Recoil
+2-5%Scrap to learn (15% chance)
Science Expert 1 to craft
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x1
Screw x1
Steel x4
Aligned sniper
(Long)
-2% Aim Speed
-75% Hip-Fire Accuracy
+25% Sighted Accuracy
+37% Recoil
-70% Ammo Capacity
+87.5%+108-6+30%Scrap to learn (10% chance)
Science Expert 1 to craft
Adhesive x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x2
Steel x15
Aligned splitter
(Shotgun)
+5 Projecties
+1% Aim Speed
+25% Hip-Fire Accuracy
-75% Sighted Accuracy
-22% Recoil
+15.5%-49+95%Scrap to learn (10% chance)
Science Expert 1 to craft
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x2
Screw x3
Steel x8
Automatic-3% Aim Speed
-100% Hip-Fire Accuracy
+45% Sighted Accuracy
+50% Recoil
-10% Ammo Capacity
-15%+58+84-17+25%Scrap to learn (10% chance)
Adhesive x1
Circuitry x2
Crystal x2
Fiber optics x2
Gear x3
Oil x1
Screw x4
Silver x1
Steel x11
Flamer
(Thrower)
-10% Recoil
Ammo Capacity
+40.6%+58-72-76+8Scrap to learn (10% chance)
Adhesive x2
Asbestos x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x3
Steel x15
Short+20% Sighted Accuracy
-10% Recoil
Known by default
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x1
Screw x1
Steel x4
Sniper
(Long)
-4% Aim Speed
-100% Hip-Fire Accuracy
+20% Sighted Accuracy
+50% Recoil
-70% Ammo Capacity
+87.5%+108-9+35%Scrap to learn (10% chance)
Adhesive x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x2
Steel x15
Splitter
(Shotgun)
+5 Projecties
-80% Sighted Accuracy
-10% Recoil
+15.5%+100%Scrap to learn (10% chance)
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x2
Screw x3
Steel x8
Stabilized automatic
(Automatic)
-3% Aim Speed
-100% Hip-Fire Accuracy
+45% Sighted Accuracy
+25% Recoil
-10% Ammo Capacity
-15%+58+84-16+25%Scrap to learn (15% chance)
Adhesive x1
Circuitry x2
Crystal x2
Fiber optics x2
Gear x3
Oil x1
Screw x4
Silver x1
Steel x11
Stabilized flamer
(Thrower)
+25% Recoil
Ammo Capacity
+40.6%+58-72+76+8Plan Read plan to learn
Adhesive x2
Asbestos x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x3
Steel x15
Stabilized short
(Short)
+20% Sighted Accuracy
-35% Recoil
Scrap to learn (15% chance)
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x1
Screw x1
Steel x4
Stabilized sniper
(Long)
-4% Aim Speed
-100% Hip-Fire Accuracy
+20% Sighted Accuracy
+25% Recoil
-70% Ammo Capacity
+87.5%+108-7+35%Scrap to learn (10% chance)
Adhesive x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x2
Steel x15
Stabilized splitter
(Shotgun)
+5 Projecties
-80% Sighted Accuracy
-35% Recoil
+15.5%-53+100%Plan Read plan to learn
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x2
Screw x3
Steel x8
True automatic
(Automatic)
-75% Hip-Fire Accuracy
+55% Sighted Accuracy
+50% Recoil
-10% Ammo Capacity
-15%+58+84-15+25%Scrap to learn (10% chance)
Adhesive x1
Circuitry x2
Crystal x2
Fiber optics x2
Gear x3
Oil x1
Screw x4
Silver x1
Steel x11
True flamer
(Thrower)
+3% Aim Speed
+25% Hip-Fire Accuracy
+10% Sighted Accuracy
-10% Recoil
Ammo Capacity
+40.6%+58-72-76+8Plan Read plan to learn
Adhesive x2
Asbestos x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x3
Steel x15
True short
(Short)
+3% Aim Speed
+25% Hip-Fire Accuracy
+30% Sighted Accuracy
-10% Recoil
+2Scrap to learn (15% chance)
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x1
Screw x1
Steel x4
True sniper
(Long)
-1% Aim Speed
-75% Hip-Fire Accuracy
+30% Sighted Accuracy
+50% Recoil
-70% Ammo Capacity
+87.5%+108-6+35%Scrap to learn (10% chance)
Adhesive x2
Circuitry x2
Crystal x3
Fiber optics x3
Screw x4
Silver x2
Steel x15
True splitter
(Shotgun)
+5 Projecties
+3% Aim Speed
+25% Hip-Fire Accuracy
-70% Sighted Accuracy
-10% Recoil
+15.5%-47+100%Plan Read plan to learn
Adhesive x1
Circuitry x1
Fiber optics x1
Glass x2
Screw x3
Steel x8

Grip
ModDescriptionAccuracy changeAP cost changeRequirementsResources
Aligned stock
(Marksman's Rifle)
-8% Aim Speed
+9% Stability
+25% Hip-Fire Accuracy
+45% Sighted Accuracy
-37% Recoil
+100% Melee Damage
-100% Per-Shot Recoil
+8+15%Scrap to learn (15% chance)
Science Expert 1 to craft
Adhesive x1
Plastic x5
Screw x2
Bruising grip
(Comfort Grip Pistol)
+5% Hip-Fire Accuracy
-5% Recoil
+50% Melee Damage
-100% Per-Shot Recoil
+3-10%Scrap to learn (15% chance)
Adhesive x1
Plastic x5
Screw x2
Forceful stock
(Recoil Compensated Rifle)
-10% Aim Speed
+7% Stability
+40% Sighted Accuracy
-42% Recoil
+25% Melee Damage
-300% Per-Shot Recoil
+7+15%Scrap to learn (15% chance)
Science Expert 1 to craft
Adhesive x1
Plastic x5
Screw x2
Precise stock
(Marksman's Rifle)
-8% Aim Speed
+9% Stability
+25% Hip-Fire Accuracy
+45% Sighted Accuracy
-25% Recoil
+25% Melee Damage
-100% Per-Shot Recoil
+7+20%Scrap to learn (15% chance)
Science Expert 1 to craft
Adhesive x1
Plastic x5
Screw x2
Stabilized stock
(Recoil Compensated Rifle)
-10% Aim Speed
+7% Stability
+40% Sighted Accuracy
-55% Recoil
-300% Per-Shot Recoil
+8+20%Scrap to learn (15% chance)
Adhesive x1
Plastic x5
Screw x2
Standard grip
(Pistol)
-10%Known by default
Adhesive x1
Plastic x5
Screw x2
True stock
(Rifle)
-7% Aim Speed
+7% Stability
+25% Hip-Fire Accuracy
+50% Sighted Accuracy
-20% Recoil
-100% Per-Shot Recoil
-7+20%Scrap to learn (15% chance)
Adhesive x1
Plastic x5
Screw x2

Sights
ModDescriptionAccuracy changeAP cost changeRequirementsResources
Long night vision scope
(Night-Vision)
+10 Magnification
-20% Stability
+25% Sighted Accuracy
+35Plan Read plan to learn
Adhesive x3
Aluminum x5
Circuitry x2
Fiber optics x2
Glass x3
Nuclear material x6
Screw x3
Long recon scope
(Recon)
+10 Magnification
-20% Stability
+25% Sighted Accuracy
+35Scrap to learn (10% chance)
Adhesive x3
Aluminum x5
Circuitry x2
Crystal x4
Fiber optics x2
Nuclear material x7
Screw x4
Long scope
(Scoped)
+10 Magnification
-20% Stability
+25% Sighted Accuracy
+35Scrap to learn (15% chance)
Adhesive x2
Glass x2
Screw x3
Steel x7
Medium night vision scope
(Night-Vision)
+6 Magnification
-20% Stability
+25% Sighted Accuracy
+22Plan Read plan to learn
Adhesive x2
Aluminum x4
Circuitry x1
Fiber optics x2
Glass x2
Nuclear material x4
Screw x1
Silver x1
Medium scope
(Scoped)
+6 Magnification
-20% Stability
+25% Sighted Accuracy
+22Scrap to learn (15% chance)
Adhesive x2
Glass x1
Screw x1
Steel x6
Reflex sight (circle)
(Tactical)
+10% Aim Speed
+15% Sighted Accuracy
+6-15%Known by default
Adhesive x1
Aluminum x1
Glass x1
Nuclear material x2
Screw x1
Silver x1
Short night vision scope
(Night-Vision)
+4 Magnification
-10% Aim Speed
-20% Stability
+25% Sighted Accuracy
+9+30%Plan Read plan to learn
Adhesive x2
Aluminum x4
Circuitry x1
Fiber optics x1
Glass x1
Nuclear material x2
Screw x1
Silver x1
Short recon scope
(Recon)
+2 Magnification
-20% Aim Speed
-20% Stability
+25% Sighted Accuracy
+15+20%Scrap to learn (10% chance)
Adhesive x3
Aluminum x5
Circuitry x2
Crystal x4
Fiber optics x2
Nuclear material x7
Screw x4
Short scope
(Scoped)
+4 Magnification
-20% Stability
+25% Sighted Accuracy
+15Scrap to learn (15% chance)
Adhesive x1
Glass x1
Screw x1
Steel x4
StandardKnown by default
Adhesive x1
Steel x3

Paint
AppearanceNameDescriptionRequirementsResources
FO76 Plasma gun
Default AppearanceKnown by defaultNone
SCORE S15 Skin WeaponSkin PlasmaGun Poker L
Poker PaintShow that you know how to use the hand you've been dealt with this Poker Paint!Rank 33 reward in The Big Score
season S.C.O.R.E.
Oil x1

Location[]

Buried Treasure - In Vault 79, on a table in a room near the Auxiliary Operations Center. Requires asking Ra-Ra to explore.

Notes[]

  • The Slug Buster is affected by the Grounded mutation.
  • Slain enemies may turn to goo piles. Enemies finished by a critical hit will always turn into goo.
  • Anything killed by plasma weapons has a chance to drop nuclear material on death. This chance increases if the target has been melted to goo.
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