Armaspec Fulcrum45 Short Throw Ambidextrous Safety Selector AR-15 Steel Black

From MidwayUSA

The Armaspec FULCRUM-45 is an ambidextrous 45 degree safety selector for the AR15/AR10 platform. It's set to fire at around the 45 degree point instead of 90 degree to allow for faster disengagement. Its easy to reach levers and incredibly smooth action makes position selection a natural, fluid movement for the operator while having a super crisp lockup, leaving you no doubt about your safety status. Once installed, the FULCRUM-45 operates easily from either side of the receiver for intuitive use in the field by a variety of shooters in any circumstance. Operates exactly as you want it to.