WarframeAlchemyLab ES
How to farm it? See the full plan

Stats

Drain
2
Max rank
5
Polarity
naramon
Rarity
Uncommon
Type
Secondary Mod

Where it drops

Duviri / Endless: Tier 1 Normal 0.67% Duviri / Endless: Tier 3 Normal 0.67%

FAQ

Where does Concussion Rounds drop?

The best source of Concussion Rounds is Endless: Tier 1 (Duviri), at 0.67% per reward according to Digital Extremes' official drop tables.

Can Concussion Rounds be traded?

Yes, Concussion Rounds can be traded between players.