A Stamford police officer has sued gunmaker Sig Sauer over injuries he suffered when his holstered P320 pistol discharged and hit him in the leg after he dropped it in a parking lot.

According to the complaint filed Aug. 4 in the U.S. District Court for the District of Connecticut, officer Vincent Sheperis dropped his holstered department-issued handgun while loading equipment into the back of his car in January. The gun fired when it hit the pavement, and the bullet entered beneath his left knee and lodged to the side “with the round protruding from his leg.”