Removes a major friction point from your Autococker to maximize its efficiency and increase the cycle rate. A standard sear rubs on the ramp that is part of the trigger plate. The Custom Psychoballistics Roller Sear eliminates that friction by adding a precision roller bearing at the point of friction. Once installed, you"ll notice the difference in every pull of the trigger! Note: when installed on some models, this renders the safety nonfunctional.