Fallout 4-Database-Weapons-A3-21 Prototype

A3-21 Prototype
Fallout 4 Weapon

Unique

Creation Club

A3-21 Prototype is a unique semi-automatic energy rifle in Fallout 4. It is a Creation Club addition.

It fires Plasma Cartridge ammo. Mods can switch it to fully automatic fire. In total it takes 38 mods across 5 slots.

It is boosted by 40 perks.

A3-21 Prototype 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 A3-21 Prototype

Mods

interactive

638

5.7

Fire Rate

shots per
10 sec

Semi-Auto

Ammo

30Plasma Cartridge

Range

119

215

100%50%

AP Cost

Reload Time

3.3s

Grip

Light Adjustable Stock

Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash damage. Reduced weight.

Full Stock

Exceptional sighted accuracy. Better recoil and aim with scopes. Improved bash damage.

Gun Nut (2)

Science! (1)

Marksman's Stock

Exceptional sighted accuracy. Superior recoil and aim with scopes. Improved bash damage.

Gun Nut (3)

Science! (2)

Muzzle

No Muzzle

Bipole Magnetic Focuser

Improved speed, range, recoil and fire rate.

Science! (1)

Quad Focuser

Superior speed, range, recoil and fire rate.

Nuclear Physicist (1)

Science! (4)

Tripole Magnetic Focusing Array

Better speed, range, recoil and fire rate.

Science! (3)

Bolt Splitter

Splits beam into multiple projectiles covering a wider area. Poor accuracy and range.

Science! (1)

Barrel

Irradiated Carbine Barrel

Green Plasma. Increased Radiation damage.

Improved Irradiated Carbine Barrel

Green Plasma. Improved recoil, range and Energy damage. Increased Radiation damage.

Science! (1)

Irradiated Long Barrel

Green Plasma. Superior range and sighted accuracy. Superior base and Energy damage. Poor recoil and hip-fire accuracy. Increased Radiation damage.

Science! (2)

Superior Irradiated Long Barrel

Green Plasma. Exceptional range and sighted accuracy. Exceptional base and Energy damage. Worse recoil and reduced hip-fire accuracy. Increased Radiation damage.

Science! (3)

Optimized Irradiated Automatic Barrel

Green Plasma. Automatic. Better range. Superior rate of fire. Reduced base and Energy damage. Reduced hip-fire accuracy. Superior ammo capacity. Increased Radiation damage.

Science! (3)

Irradiated Automatic Barrel

Green Plasma. Automatic. Better range and rate of fire. Poor base and Energy damage. Poor hip-fire accuracy. Superior ammo capacity. Increased Radiation damage.

Science! (1)

Irradiated Charging Barrel

Green Plasma. Explosive Projectile. Superior damage. Poor rate of fire. Low ammo capacity. Increased Radiation damage.

Nuclear Physicist (1)

Science! (3)

Experimental Irradiated Charging Barrel

Green Plasma. Explosive Projectile. Superior damage. Reduced rate of fire. Low ammo capacity. Increased Radiation damage.

Nuclear Physicist (2)

Science! (4)

Receiver

Standard Plasma Injector

Standard.

Tuned Plasma Injector

Better base and Energy damage.

Science! (2)

Photonic Plasma Exciter

Improved critical hit damage and accuracy.

Science! (1)

Boosted Plasma Injector

Superior base and Energy damage. Better ammo capacity.

Science! (3)

Phased Plasma Injector

Improved range and armor piercing.

Science! (1)

Supercharged Plasma Injector

Exceptional base and Energy damage. Exceptional ammo capacity.

Nuclear Physicist (1)

Science! (4)

Multi-Phased Plasma Injector

Better range and armor piercing.

Science! (3)

Photonic Plasma Agitator

Better critical hit damage, accuracy, and ammo capacity.

Science! (1)

Boosted Photonic Plasma Agitator

Superior base and Energy damage. Better critical hit damage, accuracy, and ammo capacity.

Science! (3)

Boosted Multi-Phased Plasma Injector

Superior base and Energy damage. Superior armor piercing. Better ammo capacity and range.

Science! (4)

Scope

Standard Sights

Standard.

Reflex Sight (Circle)

Better focus and sighted accuracy.

Science! (1)

Reflex Sight (Dot)

Better focus and sighted accuracy.

Science! (1)

Long Scope

Superior magnification and sighted accuracy.

Science! (2)

Medium Scope

Better magnification. Superior sighted accuracy.

Science! (1)

Short Scope

Improved magnification. Superior sighted accuracy.

Long Night Vision Scope

Night vision. Superior magnification and sighted accuracy.

Science! (3)

Medium Night Vision Scope

Night vision. Better magnification. Superior sighted accuracy.

Science! (2)

Short Night Vision Scope

Night vision. Improved magnification. Superior sighted accuracy.

Science! (1)

Long Recon Scope

Tracks targets. Superior magnification and sighted accuracy.

Science! (4)

Medium Recon Scope

Tracks targets. Better magnification. Superior sighted accuracy.

Science! (3)

Short Recon Scope

Tracks targets. Improved magnification. Superior sighted accuracy.

Science! (2)

Ammo

Plasma Cartridge

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

Boosted by

Perks (40)

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

Rifleman

Keep your distance long and your kill-count high. Attacks with non-automatic rifles do 20% more damage.

PER 2

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

Sniper

It's all about focus. You have improved control and can hold your breath longer when aiming with scopes.

PER 8

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.

Energy weapons

Plus 25% critical damage with energy weapons.

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

AX90 Fury

Furious

Increased damage after each consecutive hit on the same target.

25% faster fire rate, 15% faster reload.

Institute Plasma Pistol

Institute Plasma Rifle

Does 50% more damage against robots. Chance to stagger on hit.

A3-21 PrototypeFallout 4 Weapon

A3-21 Prototype Builds

Mods

Ammo

Boosted by

More Weapons

A3-21 Prototype
Fallout 4 Weapon