This professional grade, ENHANCED LIGHTWEIGHT semi-auto safety selector is the perfect upgrade to AR-15. The CNC machined, billet 7075-T6 aluminum skeletonized levers are strong and lightweight. It comes standard with a precision SWISS CNC machined, reversible throw steel safety center core with 0-90 and 0-60 short-throw options. The standard and short aluminum safety levers are fully interchangeable and modular to accommodate left or right handed shooters. The new BAD-ASS-ELITE is 100% compatible with all known AR variant lower receivers and triggers designed to work with the Mil-Spec AR-15 semi-auto safety.