The spring suppressor preferably includes a housing, a piston rod, a compression spring and an end plug. The piston includes a bumper portion, a neck portion and a tail portion. The housing includes a bumper hole, a piston bore and a cap thread. The piston bore is formed through substantially a length of the housing. The bumper hole is sized to slidably receive an outer diameter of the bumper portion. The cap thread is formed in an entrance of the piston bore to threadably receive the end plug. The piston is pre-loaded by the compression spring. The end plug is threaded into an end of the piston bore to retain the compression spring and the piston rod. A second embodiment of the string suppressor preferably includes the bumper, the piston rod, the compression spring, a housing and an end rod.