Weapon perks

Introduction

#	Description
	Equipped weapon gains experience by killing NPCs or via Upgrade Parts. With enough experience, new perks unlock, and the item's color changes. Weapon perks have ranks that determine their power level; they are mainly influenced by Item Luck.
Perk 1-3	The first three perks on tier 3 gear are always predefined. Some tier 4 items may have random perks even on the first three levels.
Perk 4	The fourth perk can be chosen via a dialog window once unlocked. However, if you level up your weapon using Upgrade Parts, this perk will be random.
Perk 5	The fifth perk is always random.
Legendary Perk	The sixth perk, known as the "legendary" perk, is selected from a separate table of perks and only applies against NPCs.
Perk 7	Every weapon can be upgraded by Roger or Cotsford (Vegas) to gain one additional perk.

Perk Navigation

List of Perks

Ammo Upgrade

Available	Random	Level 4	Event
Ranged	Ranged	Ranged	None

	F	E	D	C	B	A	S	S+
Increases weapon's ammo mods
AC Mod	-1	0	+1	+2	+4	+8	+12	+24
Damage Mod	-5%	+1%	+2%	+4%	+5%	+8%	+10%	+15%
Hubologist
AC Mod	0	+1	+2	+4	+8	+12	+24	+50
Damage Mod	+2%	+3%	+4%	+6%	+9%	+12%	+16%	+20%
DT mod	-1%	-2%	-3%	-5%	-7%	-9%	-12%	-15%

Bloody

Available	Random	Level 4	Event
Melee	?	Melee	?

	F	E	D	C	B	A	S	S+
Increases Bleed damage and applies Bleed stacks on Critical Hits
Bleed Damage	-10%	+5%	+10%	+15%	+20%	+25%	+30%	+35%
Bleed stacks	0	0	0	0	0	1	1	1
Hubologist	Atomic Savant + More Critical
Bleed Damage	+10%	+20%	+30%	+40%	+50%	+60%	+70%	+80%
Bleed stacks	0	1	1	2	2	2	3	3
Perks	-	-	-	-	*	*	*	**

Bonus Critical Power

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Increases Critical Roll and Power
Critical Roll	-5	+1	+3	+5	+7	+9	+11	+13
Critical Power	-5%	0	0	+1%	+3%	+5%	+7%	+10%
Hubologist	Better Criticals + Hit the Gaps + Spray and Pray
Critical Roll	+2	+5	+8	+11	+14	+17	+20	+23
Critical Power	0	0	+4%	+6%	+8%	+13%	+16%	+20%
Perks	-	-	-	*	*	**	**	***

Bonus Max Damage

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Increases Max weapon damage and grants DT Penetration
Max Damage	-5%	+1%	+3%	+5%	+7%	+9%	+11%	+15%
DT Penetration	0	0	+1%	+2%	+3%	+5%	+7%	+10%
Hubologist	Bonus Battle Stats + Firefighter
Max Damage	+3%	+6%	+8%	+11%	+13%	+16%	+19%	+25%
DT Penetration	+1%	+3%	+5%	+7%	+9%	+11%	+13%	+15%
Perks	-	-	-	-	*	*	*	**

Bonus Min Damage

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Increase Min weapon damage and grants DR Penetration (Normal
Min Damage	-5%	+2%	+4%	+6%	+8%	+10%	+12%	+20%
DR Penetration	0	0	0	+1%	+2%	+3%	+4%	+5%
Hubologist	Pyromaniac + Firefighter
Min Damage	+4%	+5%	+10%	+20%	+25%	+30%	+35%	+40%
DR Penetration	+1%	+2%	+5%	+6%	+7%	+8%	+9%	+10%
Perks	-	-	-	-	*	*	**	**

Bonus Attack Speed

Available	Random	Level 4	Event
All	Ranged	None	None

	F	E	D	C	B	A	S	S+
Decreases Attack Delay and lowers Slow's effect on Attack Delay
Attack Delay	+5%	0	-5%	-8%	-11%	-14%	-17%	-20%
Slow AD Protection	0	+5	+10	+15	+20	+30	+45	+60
Hubologist	Bonus Rate of Fire + Cowboy + Fast Attacks
Attack Delay	-5%	-8%	-10%	-15%	-20%	-25%	-30%	-35%
Slow AD Protection	+5	+10	+15	+20	+30	+45	+60	+100
Perks	-	-	-	*	*	**	**	***

Damage per Bullet

Available	Random	Level 4	Event
Ranged	Ranged	Ranged	All

	F	E	D	C	B	A	S	S+
Increases damage per bullet and increases damage multiplier
Damage per bullet	-1	0	+1	+2	+3	+3	+4	+4
Damage Multiplier	-3%	+1%	+1%	+2%	+2%	+3%	+4%	+5%
Hubologist	Bonus Ranged Damage + More Ranged Damage + Death Sense
Damage per bullet	+1	+1	+2	+3	+4	+5	+6	+7
Damage Multiplier	+3%	+4%	+5%	+6%	+7%	+8%	+9%	+10%
Perks	-	-	-	*	*	**	**	***

Less AP Cost

Available	Random	Level 4	Event
All	Melee	Melee	None

	F	E	D	C	B	A	S	S+
Decreases Reload AP cost and weapon AP cost
Reload AP cost	+1	-1	-2	-3	-4	-5	-6	-7
Weapon AP cost	+1	0	0	0	0	0	-1	-1
Hubologist	Bonus HtH Attacks + Bonus HtH Damage + Vampire
Reload AP cost	-6	-8	-10	-12	-14	-16	-18	-20
Weapon AP cost	0	0	0	-1	-1	-1	-1	-2
Perks	-	-	-	*	*	**	**	***

Chip Shot

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Gives Critical Chance Penetration and increases chance to apply critical effect
Critical Chance Penetration	-5%	+5%	+10%	+15%	+25%	+33%	+45%	+60%
Chance to apply critical effect	-5%	+5%	+10%	+15%	+25%	+33%	+45%	+60%
Hubologist	Hit the Gaps + Spray and Pray
Critical Chance Penetration	+5%	+10%	+15%	+25%	+33%	+45%	+60%	+100%
Chance to apply critical effect	+5%	+10%	+15%	+25%	+33%	+45%	+60%	+100%
Perks	-	-	-	*	*	**	**	***

Destroyer

Available	Random	Level 4	Event
All	Ranged	Ranged	None

	F	E	D	C	B	A	S	S+
Reduces target DR against Normal/Fire/Explode and gives Lethality
Target DR	+5%	-1%	-2%	-4%	-8%	-11%	-13%	-15%
Lethality	0%	0%	+1%	+2%	+3%	+4%	+5%	+6%
Hubologist	Gunner + Living Anatomy + Weapon Handling
Target DR	-2%	-3%	-6%	-9%	-13%	-17%	-21%	-25%
Lethality	+1%	+2%	+3%	+4%	+5%	+6%	+7%	+8%
Perks	-	-	-	*	*	**	**	***

Fast Trigger

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Increases AP and AP Regen
Action Points	0	0	+1	+1	+1	+2	+2	+2
AP Regen	-10	+1	+4	+8	+12	+18	+22	+25
Hubologist	Action Boy + Bonus Move + Gain Agility
Action Points	+1	+1	+1	+2	+2	+2	+3	+3
AP Regen	+5	+10	+15	+20	+25	+30	+35	+40
Perks	-	-	-	*	*	**	**	***

Frozen Queen

Available	Random	Level 4	Event
All	Melee	Melee	None

	F	E	D	C	B	A	S	S+
Applies Slow and Confusion (and sometimes Bounty stacks)
Slow	0	10%	20%	30%	40%	50%	60%	70%
Confusion stacks	1	1	1	1	1	1	1	1
Hubologist
Slow	10%	20%	30%	40%	50%	60%	70%	80%
Confusion stacks	1	1	2	2	2	2	3	3
Bounty stacks	1	1	1	1	2	2	2	2

Killing Spree

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Regens 20% AP and Regens HP on kill
AP Regen works for	None	PvP	PvP	PvP	PvP	PvP+PvE	PvP+PvE	PvP+PvE
HP Regen on kill	-5%	+1%	+2%	+3%	+4%	+5%	+6%	+7%
Hubologist	Quick Pockets + Faster Healing + Gain Endurance
AP Regen works for	PvP	PvP	PvP+PvE	PvP+PvE	PvP+PvE	PvP+PvE	PvP+PvE	PvP+PvE
HP Regen on kill	+2%	+4%	+6%	+8%	+10%	+12%	+14%	+16%
Perks	-	-	-	-	*	*	*	**

Knockback

Available	Random	Level 4	Event
All	All	None	All

	F	E	D	C	B	A	S	S+
Gives Knockback effect on Critical Hit and Penetrate Damage Protection
Knockback distance	-1	+1	+1	+2	+2	+3	+3	+4
Penetrate Damage Protection	-2%	+1%	+2%	+3%	+4%	+5%	+6%	+7%
Hubologist	Spray and Pray + Hit the Gaps + Better Criticals
Knockback distance	+1	+2	+3	+4	+5	+6	+50	+50
Penetrate Damage Protection	+1%	+2%	+3%	+4%	+5%	+6%	+7%	+8%
Perks	-	-	*	*	**	**	***	***

Life Steal

Available	Random	Level 4	Event
Melee	Melee	Melee	All

	F	E	D	C	B	A	S	S+
Gives Melee Life Steal and decreases max accuracy of opponents within one hex
Melee Life Steal	0	+4%	+9%	+18%	+25%	+33%	+50%	+75%
Max accuracy for opponents on one hex	+5%	-3%	-5%	-10%	-15%	-25%	-33%	-50%
Hubologist	Vampire + In Your Face!
Melee Life Steal	+4%	+9%	+18%	+25%	+33%	+50%	+75%	+100%
Max accuracy for opponents on one hex	-3%	-5%	-10%	-15%	-25%	-33%	-50%	-75%
Perks	-	-	*	*	*	**	**	**

Long Range

Available	Random	Level 4	Event
All	Ranged	Ranged	None

	F	E	D	C	B	A	S	S+
Increases minimum and max accuracy, reduces distance penalty to 1 and reduces Aimed Attack Delay penalty
Min and max accuracy	-4%	+4%	+8%	+12%	+16%	+20%	+24%	+28%
Reduce Aimed Attack Delay penalty	0	-5%	-10%	-15%	-25%	-33%	-50%	-75%
Hubologist	Sharpshooter + Right Between the Eyes + Quick Recovery
Min and max accuracy	+5%	+10%	+15%	+20%	+25%	+30%	+35%	+40%
Reduce Aimed Attack Delay penalty	-5%	-10%	-15%	-25%	-33%	-50%	-75%	-100%
Perks	-	-	*	*	**	**	***	***

Bonus Critical Chance

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Increases Critical Chance and gives Critical Power Resistance Penetration
Critical Chance	-4%	+2%	+5%	+8%	+11%	+14%	+17%	+20%
Critical Power Resistance Penetration	0	+3%	+6%	+9%	+12%	+15%	+18%	+21%
Hubologist	More Critical + Even More Criticals + Gain Luck
Critical Chance	+5%	+10%	+15%	+20%	+25%	+30%	+35%	+40%
Critical Power Resistance Penetration	+3%	+6%	+9%	+12%	+15%	+18%	+21%	+25%
Perks	-	-	-	*	*	**	**	***

More Critical Damage

Available	Random	Level 4	Event
All	None	None	None

	F	E	D	C	B	A	S	S+
Increases Critical Damage and applies Weakness stacks
Critical Damage	-1-10%	+2-25%	+3-30%	+4-35%	+5-40%	+6-45%	+7-50%	+8-50%
Weakness stacks	0	5	10	15	20	30	40	50
Hubologist	Better Criticals + Even More Criticals
Critical Damage	+7-39%	+10-49%	+13-59%	+16-75%	+20-100%	+33-150%	+50-200%	+50-200%
Weakness stacks	20	30	40	50	60	70	80	100
Perks	-	-	-	*	*	*	**	**

Penetrate

Available	Random	Level 4	Event
All	All	All	None

	F	E	D	C	B	A	S	S+
Increases DT penetration against Normal/Fire/Explode and increases 1-hex damage for bursts (all damage types)
DT penetration	+2%	+4%	+8%	+11%	+13%	+16%	+20%	+25%
1-hex damage	0%	+4%	+9%	+13%	+18%	+22%	+27%	+33%
Hubologist	Death Sense + More Ranged Damage + Bonus Ranged Damage
DT penetration	+5%	+10%	+15%	+20%	+25%	+30%	+35%	+40%
1-hex damage	+5%	+10%	+15%	+20%	+25%	+30%	+40%	+50%
Perks	-	-	-	*	*	**	**	***

Poisonous

Available	Random	Level 4	Event
All	Melee	Melee	None

	F	E	D	C	B	A	S	S+
Applies Poison and increases ammo heal value
Poison	0	0-10	0-20	5-30	10-40	15-50	20-60	25-70
ammo heal value	-10%	+10%	+20%	+30%	+40%	+50%	+60%	+70%
Hubologist	Better HtH Criticals + In Your Face! + Gain Strength
Poison	5-10	10-20	15-30	20-40	25-50	30-60	35-70	40-80
ammo heal value	+25%	+40%	+55%	+70%	+85%	+100%	+115%	130%
Perks	-	-	*	*	**	**	***	***

Scoped

Available	Random	Level 4	Event
Ranged	Ranged	Ranged	All

	F	E	D	C	B	A	S	S+
Increases weapon range (Ranged Weapons) and increases AC mod of target
Weapon range	-1	0	0	+1	+1	+2	+2	+3
AC mod of target	0	+1	+2	+3	+4	+5	+7	+10
Hubologist	Sharpshooter + Right Between the Eyes + Quick Recovery
Weapon range	+1	+1	+2	+2	+3	+4	+5	+6
AC mod of target	+2	+4	+6	+8	+10	+13	+16	+18
Perks	-	-	-	*	*	**	**	***

Spiked

Available	Random	Level 4	Event
Melee	Melee	None	None

	F	E	D	C	B	A	S	S+
Increases melee critical damage and melee power
Melee critical damage	-0-5%	+0-15%	+0-30%	+5-45%	+10-60%	+15-75%	+20-90%	+25-105%
Melee power	0	+2%	+5%	+9%	+14%	+20%	+27%	+35%
Hubologist	Better HtH Criticals + In Your Face! + Gain Strength
Melee critical damage	+5-15%	+10-30%	+15-45%	+20-60%	+25-75%	+30-90%	+35-105%	+40-120%
Melee power	+5%	+9%	+14%	+20%	+27%	+35%	+44%	+54%
Perks	-	-	*	*	**	**	***	***

Smasher!

Available	Random	Level 4	Event
Melee	Melee	Melee	None

	F	E	D	C	B	A	S	S+
Increases Heavy Handed malus and Melee Damage
Melee Damage	-5	0	+2	+4	+6	+8	+10	+12
Heavy Handed malus	+1	+2	+3	+4	+5	+6	+7	+8
Hubologist	Bonus HtH Attacks + Bonus HtH Damage + Vampire
Melee Damage	+3	+6	+9	+12	+15	+18	+21	+24
Heavy Handed malus	+11	+12	+13	+14	+15	+16	+17	+18
Perks	-	-	*	*	**	**	***	***

Lethal Damage

Available	Random	Level 4	Event
All	All	All	All

	F	E	D	C	B	A	S	S+
Increases Lethal Damage and penetrates lethal damage protection
Lethal Damage	-5	+1	+2	+3	+4	+6	+8	+10
Lethal Penetration	0	0	0	+1%	+2%	+3%	+4%	+5%
Hubologist	Gunner + Living Anatomy + Weapon Handling
Lethal Damage	+1	+3	+6	+9	+12	+15	+18	+20
Lethal Penetration	+1%	+2%	+3%	+4%	+5%	+6%	+7%	+8%
Perks	-	-	-	*	*	**	**	***

List of legendary weapon perks-6th Perk

.

More Bonus Damage

F	+10% damage against NPCs
E	+4% DR Penetration against NPCs
D	+10% slow weapon break
C	+10% damage against NPCs (sums with F)
B	x3% damage against NPCs
A	+5% DT Penetration against NPCs
S	+4% DR Penetration against NPCs (sums with E)
S+	+20% damage against NPCs (sums with F and C)
S++	+3% Lethality

Lethal Upgrade

F	+5 Lethal Damage against NPCs
E	+4% Lethal Penetration against NPCs
D	+10% slow weapon break
C	+5 Lethal Damage against NPCs(sums with F)
B	Deal 1% of Max NPC's HP
A	Restore 20% AP after kill NPCs
S	+4% Lethal Penetration against NPCs(sums with E)
S+	+10 Lethal Damage against NPCs(sums with F and C)
S++	Deal 5% of Max NPC's HP(stacks with B)

Critical Master

F	+5% Critical Chance against NPCs
E	+4% Critical Chance Penetration against NPCs
D	+10% slow weapon break
C	+5% Critical Chance against NPCs(sums with F)
B	Deal Critical Damage equal to Critical Chance against NPCs
A	Critical hits against NPCs are upgraded by 1 bracket
S	+4% Critical Chance Penetration against NPCs(sums with E)
S+	+10% Critical Chance against NPCs(sums with F and C)
S++	Criticals Hits against NPCs have minimum critical table set as 5

Butcher

F	+2% lifesteal against NPCs
E	+4% HP Restore after kill NPCs
D	+10% slow weapon break
C	+2% lifesteal against NPCs (sums with F)
B	Lifesteal can heal on poisoned NPCs
A	Lifesteal against NPCs can heal over max HP for 2 sec
S	+4% HP Restore after kill NPCs (sums with E)
S+	+2% lifesteal against NPCs (sums with F and C)
S++	Gain a 1-sec immunity after kill 10 NPCs

Alien Perks

Critical Beast

F	Add 25% to target's DR
E	Ignore 50% of target's total critical chance resistance
D	Add 25% to target's DR (stacks with F)
C	Ignore 50% of target's total critical roll resistance
B	Ignore 50% of target's total critical power resistance
A	Increase critical bracket by 1
S	Increase critical bracket by 1 (stacks with A)
S+	Ignore 50% of target's total critical damage resistance

Penetrator

F	Reduce weapon's total range by 25%
E	Add +50% DT penetration
D	Reduce weapon's total range by 25% (stacks with F)
C	Add +33% DR penetration
B	Add +33% DR penetration (stacks with C)
A	Add +34% DR penetration (stacks with C and B)
S	Add +50% DT penetration (stacks with E)
S+	Add +20% Lethality

Double Range

F	Decrease accuracy by 45%
E	Add 4 weapon Range
D	Decrease accuracy by 45%(Stack with F)
C	Add 4 weapon Range(Stack with E)
B	Double all bonus weapon range
A	Ignore 1 Laser DT
S	Ignore 1 Laser DT(Stack with A)
S+	Add 8 weapon Range(Stack with E and C)

Flat Converter

F	Increase AP Cost for attack by 1
E	Penetrates 8% lethal protection
D	Increase AP Cost for attack by 1
C	Penetrates 8% lethal protection(Stack with E)
B	Converts 50% damage to lethal damage
A	Gain 4% Lethality
S	Gain 4% Lethality(Stack with A)
S+	Converts 50% damage to lethal damage(Stack with B)

Fire Converter

F	Lower weapon range by 4
E	Changes the weapon type to fire
D	Lower weapon range by 4(Stack with F)
C	Lowers the fire-fighter effect by 50%
B	Double burning damage
A	Lower AP attack cost by 1
S	Lower AP attack cost by 1(Stack with A)
S+	Lowers the fire-fighter effect by 50%(Stack with C)

Plasma Converter

F	Lower damage by 10%
E	Changes the weapon type to plasma
D	Lower damage by 10%(Stack with F)
C	Always scores critical hits
B	+50 Critical Roll
A	+50% Critical Power
S	+50% Critical Power(Stack with A)
S+	+50 Critical Roll (Stack with B)

Stun Hex

F	Cap damage on 300
E	Applies a Shock effect on a one-hex attack
D	Cap damage on 200
C	Applies a paralysis effect on a one-hex attack
B	Applies a lost turn effect on a one-hex attack
A	Regen 3 AP on a one-hex attack
S	Regen 3 AP on a one-hex attack(Stack with A)
S+	Regen 3 AP on a one-hex attack(Stack with A and S)

Lightning

F	Decrease ammo rounds per shot by 5
E	30% chance that a range attack above 10 hexes will bounce to the next target in a 10 hex range
D	Decrease ammo rounds per shot by 5(Stack with F)
C	bounced damage ignore friendly units(faction/team)
B	Increase chance of E to 50%
A	+10 Max Damage
S	+10 Max Damage(Stack with A)
S+	Increase chance of E to 90%

Heresy Shot

F	Increase Attack Delay by 400
E	Applies heresy for 4 seconds on the target
D	Increase Attack Delay by 400(Stack with F)
C	Apply 1 confusion stacks on target
B	Apply 3 weakness stacks on target
A	+25% Critical Damage
S	+25% Critical Damage(Stack with A)
S+	Apply 1 bounty stacks on target

Rad Shot

F	Increase reload cost by 50%
E	Apply 30 Radiation to target
D	Increase reload cost by 50% (stacks with F)
C	Apply 30 Radiation to target (stacks with E)
B	Convert 50% of damage into Radiation
A	Apply Poison
S	Apply 90% Slow for 2 seconds
S+	Apply 60 Radiation to target (stacks with E and C)

Rerolling

All weapon perks can be rerolled by Boyce in Junktown or Randal in New Vault City. The cost is in local currency and requires the same amount of currency as the experience required to get that level. The perk added by Wattz cores or T4 parts can also be rerolled, which is listed as number 7 in the following table. The outcome is randomized so expect to potentially spend a lot of currency before getting exactly what you want.

Level	Cost
1	10,000
2	75,000
3	150,000
4	1,000,000
5	5,000,000
6	50,000,000
7	50,000

Weapon Experience

Total amount of Experience required for equipment to level up depends on its tier, type and current level.

Total Experience Needed = Base Experience Needed * Experience Needed Modifier

Base Experience requirement and Experience modifiers to get specific equipment to a specific level can be seen in tables below:

Weapons EXP Base

NOTE: Patch 5.4

Weapons EXP Base
	Tier I	Tier II	Tier III	Tier IV	Tier V	Tier VI
Level 1	5 000	10 000	20 000	40 000	120 000	600 000
Level 2	37 500	75 000	150 000	300 000	900 000	4 500 000
Level 3	75 000	150 000	300 000	600 000	1 800 000	9 000 000
Level 4	500 000	1 000 000	2 000 000	4 000 000	12 000 000	60 000 000
Level 5	2 500 000	5 000 000	10 000 000	20 000 000	60 000 000	300 000 000
Level 6	25 000 000	50 000 000	100 000 000	200 000 000	600 000 000	3 000 000 000

Weapons EXP Modifier