Assault rifles in Warframe often benefit from larger magazines, especially in sustained fights where stopping to reload can interrupt your damage output.
Tainted Mag increases magazine capacity while reducing reload speed, creating a tradeoff that directly affects how long you can keep firing.
It is mainly used on assault rifles that perform better with longer firing windows, allowing you to stay engaged without frequent reload interruptions.
How To Get Tainted Mag?
To get Tainted Mag, you will need to run Orokin Vault missions on Deimos while carrying Dragon Keys, which are required to unlock the vault doors.
Once a vault is opened, you receive a corrupted mod from a shared reward pool, meaning there is no guarantee you will get this specific mod right away.
Because of this, most players farm vaults repeatedly, often in squads, to speed up runs and increase the chances of eventually getting it.
Tainted Mag Effects
Tainted Mag increases magazine capacity for assault rifles, allowing you to fire more rounds per magazine and reduce how often you need to reload.
In exchange, it reduces reload speed, making each reload take longer which can interrupt your damage output once the magazine runs out.
The larger magazine helps maintain consistent damage, especially on weapons that rely on sustained fire rather than short bursts or single shots.
The reload penalty can be noticeable depending on the weapon, but it can be offset with reload speed mods if the downtime becomes an issue.
This tradeoff works best on assault rifles where longer firing time improves overall damage flow more than faster reloads would.
Tainted Mag Stats
Rank | Magazine Capacity | Reload Speed | Capacity |
0 | +6% | -3% | 4 |
| 1 | +12% | -6% | 5 |
2 | +18% | -9% | 6 |
| 3 | +24% | -12% | 7 |
4 | +30% | -15% | 8 |
| 5 | +36% | -18% | 9 |
6 | +42% | -21% | 10 |
| 7 | +48% | -24% | 11 |
8 | +54% | -27% | 12 |
| 9 | +60% | -30% | 13 |
10 | +66% | -33% | 14 |
Verdict
Tainted Mag is a solid pick for assault rifles that benefit from extended firing time, especially when reload interruptions hurt your overall damage flow.
It works well on weapons that can handle slower reload speeds or have ways to offset the penalty through other mods.
On rifles with already slow reloads it can feel clunky, so it is best used when the extra magazine size actually improves your uptime in actual fights.
