
Type
Weapon
Rarity
Rare
Drop Rate
20%
Location
Factory (Second Sea)
How to Get the Acidum Rifle
Defeat the Factory Raid in the Second Sea. You must deal enough damage to qualify for rewards.
Drop Chance: 20%
Abilities & Showcase
Thorny Bomb (Z)
100
Z
Fires an AoE explosive green ball that stuns and hooks enemies. Direct hits prevent escape.

Acid Smoke (X)
200
X
Fires 3 poison gas spheres that disable Observation Haki, prevent mobility, and apply damage over time.

Upgrading the Acidum Rifle
Materials: Acidum x10, Metal Scrap x15, Leather x10
Effect: Increases damage and reduces cooldown
Pros & Cons
Pros
- High combo potential
- Both moves break Observation Haki
- Poison damage over time with M1
- Great for grinding (AoE + low cooldown)
- Excellent in raids
Cons
- Doesn’t affect Rubber users
- Requires precision
- Z move needs direct hit for full effect
- Low base damage compared to Mythicals
Guide & Lore of the Acidum Rifle
The Acidum Rifle is a rare firearm with toxic power that excels in disrupting enemy flow and strategy. With AoE stun and poison, it’s a favorite among skilled PvP players who rely on tactical control.
It shines in both PvP and raids, especially when paired with stun-heavy styles like Ice or Dark. The M1 also burns away Observation Haki cooldown. With its short cooldown and ranged pressure, this gun is a top pick for crowd control.
Though it lacks the raw burst of some Mythicals, its ability to suppress enemy movement and visibility gives you the upper hand. If you’re a gun main or want to dominate team fights and raids, the Acidum Rifle is a strategic weapon worth mastering.