Gamma Gun
Fallout 4 Weapon

The Gamma Gun is a semi-automatic energy pistol in Fallout 4.

It fires Gamma Round ammo. Mods can switch it to fully automatic fire. In total it takes 7 mods across 3 slots, and can roll one of 33 legendary effects.

It is boosted by 37 perks. It has 2 named unique versions: Lorenzo's Artifact and Zeta Gun.

Gamma Gun Builds

Jump into the character build planner with this weapon already equipped, then build perks and the rest of your loadout around it.

Create a build with Gamma Gun

Mods

interactive

158

3.1

Fire Rate

shots per
10 sec

Semi-Auto

Ammo

8Gamma Round

Range

119

100%50%

AP Cost

Reload Time

4.3s

Barrel

Standard Dish

Standard.

Deep Dish

Better range and damage.

Grip

Better recoil and hip-fire accuracy.

Gun Nut (2)

Muzzle

No Muzzle

Signal Repeater

Improved rate of fire.

Science! (4)

Electric Signal Carrier Antennae

Hold fire to charge additional electrical damage.

Science! (3)

Legendary Effects

Effects this weapon can roll as a legendary drop. Pick one to see it in the stats above.

Irradiated

Does 50 points additional radiation damage.

Wounding

Targets bleed for 25 points of additional damage.

Staggering

Chance to stagger on hit.

Relentless

Refills your Action Points on a Critical Hit.

Kneecapper

20% chance to cripple the target's leg.

Poisoner's

Target is poisoned for 10 seconds.

Enraging

Critical hits cause target to frenzy.

Never Ending

Unlimited ammo capacity.

Nimble

75% faster movement while aiming.

Quickdraw

Costs 25% less Action Points.

Deadeye

Time slows down for a moment while aiming.

Resolute

Time slows down for a moment when chambering the final round in the magazine.

Lucky Weapon

Critical shots do double damage and the critical meter fills 15% faster.

Hunter's

Does 50% more damage against animals.

Exterminator's

Does 50% more damage against Mirelurks and bugs.

Ghoul Slayer's

Does 50% more damage against ghouls.

Assassin's

Does 50% more damage against humans.

Mutant Slayer's

Does 50% more damage against super mutants.

Crippling

50% more limb damage.

Junkie's

Does increasing amounts of damage the more withdrawal effects you are suffering.

Rapid

25% faster fire rate, 15% faster reload.

Instigating

Does double damage if the target is at full health.

Hitman's

+10% damage while aiming.

Defiant

The final shot in the magazine deals twice the normal damage.

Troubleshooter's

Does 50% more damage against robots.

VATS Enhanced

Improved VATS hit chance, 25% less Action Point cost.

Stalker's

If you are not yet in combat, increases VATS accuracy but costs more AP.

Penetrating

Ignores 30% of the target's damage and energy resistance.

Powerful

25% more damage.

Nocturnal

Does increasing amounts of damage as the night grows longer and less damage during the day.

Freezing

Does 10 points cryo damage and will freeze targets on critical hits.

Steadfast

+50 damage resistance while aiming.

Resilient

+150 damage resistance while reloading.

Ammo

Gamma Round

Fired by this weapon with its current mods. Some receivers switch the ammo type: pick them above to see it change.

Boosted by

Perks (37)

Gunslinger

Channel the spirit of the Old West! Non-automatic pistols do 20% more damage.

AGI 1

Mister Sandman

As an agent of death itself, you can instantly kill a sleeping person. Your silenced weapons do an additional 15% sneak attack damage.

AGI 4

Ninja

Trained as a shadow warrior, your ranged sneak attacks do 2.5x normal damage and your melee sneak attacks do 4x normal damage.

AGI 7

Quick Hands

In combat, there's no time to hesitate. You can reload all guns faster.

AGI 8

Lady Killer / Black Widow

You're charming... and dangerous. Men/Women suffer +5% damage in combat, and are easier to persuade in dialogue.

CHA 2

Lone Wanderer

Who needs friends, anyway? When adventuring without a companion, you take 15% less damage and carry weight increases by 50.

CHA 3

Attack Dog

Your faithful canine companion can hold an enemy, giving you a greater chance to hit them in V.A.T.S.

CHA 4

Robotics Expert

Machines will always serve humans, if you have anything to say about it. Hack a robot, and gain a chance to power it on or off, or initiate a self-destruct.

INT 8

Nuclear Physicist

You've learned to split the atom... and command it. Radiation weapons do 50% more damage and Fusion Cores last an extra 25% longer.

INT 9

Nerd Rage!

Genius. Is. ANGRY! When your Health drops below 20%, time slows and you gain +20 Damage Resistance and do 20% more damage while the effect lasts.

INT 10

Fortune Finder

You've learned to discover the Wasteland's hidden wealth, and find more bottle caps in containers.

LUC 1

Bloody Mess

+5% bonus damage means enemies will sometimes explode into a gory red paste. Watch out for flying eyeballs!

LUC 3

Better Criticals

Advanced training for enhanced combat effectiveness! Criticals do 50% more extra damage.

LUC 6

Pickpocket

Your quick hands and sticky fingers make picking pockets 25% easier.

PER 1

Awareness

To defeat your enemies, know their weaknesses! You can view a target's specific damage resistances in V.A.T.S.

PER 3

Demolition Expert

The bigger the boom, the better! Your explosives do 25% more damage, and you can craft explosives at any Chemistry Station.

PER 5

Steady Aim

Stay on target! Hip-fire accuracy is improved when firing any gun.

STR 7

Basher

Get up close and personal! Gun bashing does 25% more damage.

STR 8

Ace Operator

Your stealth is increased while in shadows and you deal more damage with silenced weapons.

Astoundingly Awesome 13

Do +5% damage against Ghouls.

Astoundingly Awesome 14

Do +5% damage against Super Mutants.

Astoundingly Awesome 2

Do +5% damage with scoped weapons.

Astoundingly Awesome 6

Do +5% damage against Mirelurks.

Astoundingly Awesome 7

Do +5% damage at night.

Cloak & Dagger

Thanks to your relationship with Deacon, you receive +40% Stealth Boy duration and deal +20% more sneak attack damage.

Crusader of Atom

Provides a bonus to your weapon's damage. The higher your rads, the high the bonus.

Explosives

Plus 15% damage with explosives.

Hunter's Wisdom

Thanks to your relationship with Old Longfellow, the Damage Resistance and Energy Resistance of animals and sea creatures is reduced by 25%.

Inquisitor of Atom

Provides a bonus to your weapon's damage. The higher your rads, the high the bonus.

Islander's Almanac 2

You have a 5% higher VATS chance against animals you are in combat with.

Killshot

Thanks to your relationship with MacCready, headshot accuracy in V.A.T.S. is increased by 20%.

Know Your Enemy

Thanks to your relationship with Danse, you deal +20% more damage against Feral Ghouls, Super Mutants and Synths.

Massachusetts Surgery

Inflict +2% limb damage.

SCAV! 2

+25% Combat Knife and Switchblade damage.

SCAV! 4

+5% explosives damage.

Tesla Science

Energy weapons inflict +5% critical damage.

United We Stand

Thanks to your relationship with Preston, you deal +20% more damage and gain +20 Damage Resistance when facing three or more opponents.

More Weapons

Salvaged Assaultron Head

Charging

Charged by reloading repeatedly. The more charges, the higher the damage. (Irradiates user.)

Does 50% more damage against robots.

Gamma GunFallout 4 Weapon

Gamma Gun Builds

Mods

Legendary Effects

Ammo

Boosted by

More Weapons

Gamma Gun
Fallout 4 Weapon