The Dead Air E-Brake is an attachment designed for the Sandman-L, Sandman-S, Sandman-K, and Sandman-Ti to further mitigate recoil. In addition to reducing felt recoil, the E-Brake can effectively reduce the sound signature by an additional 2-4 dB. For installation, the front cap of the silencer must be removed using the included Dead Air Front Cap Tool.