Marathon Barrel Mods
Accuracy, stability, range, and aim assist. Every barrel mod in Marathon — effects, rarity tiers, and credit cost, straight from the game data. Many come in a rarity ladder: the same mod gets stronger as the rarity rises.
25 MODS33 ROWS
Accu-point Dampener2 RARITIES
EnhancedSlightly Increases aim assist23cr
DeluxeIncreases aim assist.100cr
Compact Barrel
EnhancedReduces weapon length for improved handling and ADS speed.60cr
Extended Barrel
DeluxeIncreases effective range and projectile velocity at the cost of handling speed.180cr
Farshot Barrel3 RARITIES
EnhancedEffect not documented yet.23cr
DeluxeIncreases ADS accuracy and range.100cr
SuperiorGreatly increases ADS accuracy and range.540cr
Flechette Split Action
PrestigeA custom-made mod for the BRRT SMG. Increases stability, handling, and accuracy when firing from the hip.1620cr
Hi-Focus Dampener
EnhancedSlightly increases ADS accuracy.60cr
Hipshot Dampener
EnhancedSlightly increases hip-fire accuracy and stability.23cr
Impulse Brake
DeluxeIncreases ADS accuracy and aim assist.180cr
Ironhold Barrel2 RARITIES
EnhancedSlightly increases stability.60cr
SuperiorGreatly increases stability, ready speed, and accuracy while crouched.540cr
Lockout Muzzle Brake
PrestigeA custom-made mod for the BR33 Volley Rifle. Increases movement speed with this weapon.1620cr
Long-Range Barrel
DeluxeIncreases range and accuracy when firing from the hip.180cr
MIPS Slug Converter
PrestigeA custom-made mod for the WSTR Combat Shotgun. Increases rate of fire, stability, and aim.1620cr
Nano-Suppressor
EnhancedSlightly increases accuracy when firing from the hip. Suppressor silences this weapon's shots and scrambles targets' health display.69cr
Outland Suppressor
PrestigeA unique mod for the Outland. Increases stability and range.1620cr
Overcharge Lens
PrestigeEnhances energy weapon performance, increasing charge efficiency and projectile velocity.60cr
Pinpoint Barrel
SuperiorGreatly increases stability and range.750cr
Precision Barrel2 RARITIES
EnhancedSlightly increases ADS accuracy and range.60cr
DeluxeImproves accuracy and reduces bullet spread for more consistent shots.100cr
Quickfire Barrel2 RARITIES
EnhancedSlightly increases stability and draw speed.23cr
DeluxeIncreases stability100cr
Sonar Shot
PrestigeA custom-made mod for the V66 Lookout. Greatly increases range and stability.1620cr
Steady Barrel2 RARITIES
DeluxeIncreases stability, ready speed, and accuracy while moving.180cr
SuperiorGreatly increases stability, ready speed, and accuracy while moving.540cr
Suppression Dampener
EnhancedSlightly increases ADS accuracy.69cr
Suppression Muzzle
PrestigeSuppresses weapon fire, reducing sound signature and muzzle flash.1600cr
Triple Barrel
PrestigeA custom-made mod for the Copperhead RF. Increases movement speed with this weapon.1620cr
Tru-shot Barrel
EnhancedSlightly improves shot accuracy.60cr
Weighted Barrel2 RARITIES
EnhancedSlightly increases aim assist.60cr
SuperiorGreatly increases aim assist and accuracy while moving.