Months after popular manufacturer 3M reached a more than $9 million settlement to resolve allegations it supplied the U.S. military with defective earplugs, a former Army sergeant has filed his own lawsuit, claiming the gear left him with hearing damage and a constant ringing in his ears. His attorney says his complaint will likely be followed by hundreds more like it.

Scott Rowe, a combat veteran who deployed to Iraq from 2003 to 2004 as part of the 411th Military Police Company, filed the suit Tuesday in U.S. District Court in the Western District of Texas, Waco Division. He’s seeking unspecified damages for permanent ear damage he alleges was sustained while using the dual-ended Combat Arms earplugs 3M provided to the military under contract.