Back 4 Blood Wiki
Advertisement

Back 4 Blood includes a variety of attachments. Attachments can be purchased from a vendor or found throughout the levels.

Attachments can be broken up into four categories called "Optics", "Barrels", "Magazines", and "Stocks". Each having their own rarity of Broken, Uncommon, Rare, Epic, and Legendary.

Weapons found during a level have a chance of being pre-equipped with any amount of the attachments listed here. They can also have "faults", displayed as red (Broken) attachments, which decrease the efficiency of the weapon. Starting into later parts of an Act will spawn weapons with any amount of attachments listed here.

NOTE: Both the Belgian and 357 Magnum cannot equip any Extended Mags, however can be found using Short Mags.

Optic attachments

Title Broken Uncommon Rare Epic Legendary
ACOG N/A 2x Magnification

+ 5% Weakspot Damage

2x Magnification

+ 10% Weakspot Damage

2x Magnification

+ 15% Weakspot Damage

N/A
High Zoom Scope N/A 4x Magnification

+ 5% Weakspot Damage

4x Magnification

+ 10% Weakspot Damage

4x Magnification

+ 15% Weakspot Damage

N/A
High Zoom Scope (Witness) N/A N/A N/A N/A N/A
Holo-Sight Heavy Holo-Sight:

- 30% ADS Speed

10% Move Speed while aiming down sights 20% Move Speed while aiming down sights 30% Move Speed while aiming down sights N/A
Needle's Eye N/A N/A Gain + 5% Bullet Damage for each Weakspot kill in the last 10 seconds
-50% ADS Speed
N/A Gain + 5% Bullet Damage for each Weakspot kill in the last 10 seconds
Reflex Sight Heavy Reflex Sight:

- 30% ADS Speed

10% Move Speed while aiming down sights 20% Move Speed while aiming down sights 30% Move Speed while aiming down sights N/A
Sharpshooter's Monocle N/A N/A 2x Magnification
+ 100% Weakspot Damage
- 25% Bullet Damage
N/A 2x Magnification
+ 100% Weakspot Damage
Staring Contest N/A N/A 4x Magnification

- 25% Bullet Stumble Damage
The first shot against any ridden stumbles it
(This effect can only occur once per ridden)

N/A 4x Magnification
The first shot against any ridden stumbles it
(This effect can only occur once per ridden)
Wandering Eye N/A N/A + 60% ADS Speed
+ 75% Move Speed while firing
- 15% Weakspot Damage
N/A + 75% ADS Speed
+ 100% Move Speed while firing

Barrel attachments

Title Broken Uncommon Rare Epic Legendary
All Bite N/A N/A + 20% Bullet Damage
- 30% Effective Range
DISABLES: Bullet Penetration
N/A + 30% Bullet Damage
DISABLES: Bullet Penetration
Compensator Warped Barrel:

- 60% Recoil Control

Bent Barrel:

- 30% Accuracy

+ 20% Recoil Control
+ 15% Move Speed While Firing
+ 40% Recoil Control
+ 30% Move Speed While Firing
+ 20% Recoil Control
+ 15% Move Speed While Firing
Laser Compensator:

+ 40% Recoil Control

+ 30% Move Speed While Firing

+ 20% Accuracy

Laser Sight N/A + 10% Accuracy + 20% Accuracy + 30% Accuracy Laser Compensator:

+ 40% Recoil Control
+ 30% Move Speed While Firing

+ 20% Accuracy

Long Barrel N/A + 25% Effective Range + 50% Effective Range + 75% Effective Range N/A
Spray 'n Pray N/A N/A Infinite Effective Range
- 50% Accuracy
N/A Infinite Effective Range
Suppressor N/A Reduces distances that enemies react to gunfire by 50%.
Increases damage dealt to unaware enemies by 25%.
Reduces distances that enemies react to gunfire by 75%.
Increases damage dealt to unaware enemies by 50%.
Reduces distances that enemies react to gunfire by 100%.
Increases damage dealt to unaware enemies by 75%.
N/A
The Anchor N/A N/A + 80% Recoil Control
- 60% Move Speed while firing
N/A + 100% Recoil Control

Magazine attachments

Title Broken Uncommon Rare Epic Legendary
AP Ammo N/A + 50% Bullet Penetration + 75% Bullet Penetration + 100% Bullet Penetration Fast AP Mag:

+ 30% Reload Speed

+ 100% Bullet Penetration

Extended AP Mag:

+ 50% Magazine Size

+ 100% Bullet Penetration

+P Ammo Corroded Mag:

- 5% Bullet Damage

+ 5% Bullet Damage + 10% Bullet Damage + 15% Bullet Damage Fast +P Mag:

+ 30% Reload Speed

+ 10% Bullet Damage

Extended +P Mag:

+ 50% Magazine Size

+ 10% Bullet Damage

HP Ammo N/A + 25% Bullet Stumble + 50% Bullet Stumble + 75% Bullet Stumble Fast HP Mag:

+ 30% Reload Speed

+ 50% Bullet Stumble

Extended HP Mag:

+ 50% Magazine Size

+ 50% Bullet Stumble

Can of Whup-Ass N/A N/A + 20% Fire Rate
+ 75% Magazine Size
- 40% Recoil Control
N/A + 20% Fire Rate
+ 75% Magazine Size
Extended Mag Short Mag:

- 25% Magazine Size

+ 25% Magazine Size + 50% Magazine Size + 75% Magazine Size Extended Fast Mag:

+ 30% Reload Speed

+ 50% Magazine Size

Extended AP Mag:

+ 50% Magazine Size

+ 100% Bullet Penetration

Extended +P Mag:

+ 50% Magazine Size

+ 10% Bullet Damage

Extended HP Mag:

+ 50% Magazine Size

+ 50% Bullet Stumble

Fast Mag Sticky Mag:

- 20% Reload Speed

+ 20% Reload Speed + 30% Reload Speed + 40% Reload Speed Extended Fast Mag:

+ 30% Reload Speed

+ 100% Bullet Penetration

Fast AP Mag:

+ 30% Reload Speed

+ 100% Bullet Penetration

Fast +P Mag:

+ 30% Reload Speed

+ 10% Bullet Damage

Fast HP Mag:

+ 30% Reload Speed

+ 50% Bullet Stumble

Less is More N/A N/A + 50% Bullet Damage
- 20% Fire Rate
- 30% Magazine Size
N/A + 50% Bullet Damage
- 20% Fire Rate
The Motherload N/A N/A + 125% Magazine Size
- 40% Reload Speed
N/A + 200% Magazine Size

Stock attachments

Title Broken Uncommon Rare Epic Legendary
Competition Stock N/A + 20% ADS Speed + 30% ADS Speed + 40% ADS Speed Light Competition Stock:

+ 30% ADS Speed

+ 10% Move Speed

Go-Getter N/A N/A Spread is no longer increased by movement N/A Spread is no longer increased by movement

+20% Accuracy

Steady Hand N/A N/A While crouching, gain + 40% Accuracy N/A While crouching, gain + 70% Accuracy
Tactical stock Bulky Stock:

- 25% Weapon Swap Speed

+ 50% Weapon Swap Speed + 75% Weapon Swap Speed + 100% Weapon Swap Speed Light Tactical Stock:

+ 75% Weapon Swap Speed

+ 10% Move Speed

Ultralight Stock Heavy Stock:

- 10% Move Speed

+ 5% Move Speed + 7.5% Move Speed + 10% Move Speed Light Competition Stock:

+ 30% ADS Speed

+ 10% Move Speed

Light Tactical Stock:

+ 75% Weapon Swap Speed

+ 10% Move Speed

Walking Stick N/A N/A +20% Move Speed
DISABLES: Sprint
N/A +25% Move Speed
DISABLES: Sprint
Advertisement