A suppressor for a firearm includes a casing that defines a rear end opposed to a front end. A plurality of baffles are inside the casing. A rear cap is upstream from the plurality of baffles and releasably coupled to the rear end of the casing, and the rear cap includes an upstream surface. A rear cap surface feature is defined by the upstream surface of the rear cap. A front cap is downstream from the plurality of baffles and releasably coupled to the front end of the casing, and the front cap includes an upstream surface. A front cap surface feature is defined by the front cap, and the front cap surface feature has a complementary shape to the rear cap surface feature so the front cap surface feature can engage with the rear cap surface feature to remove the rear cap from the casing.