Ambidextrous safety selector from Quentin Defense. Fits both AR-15 and LR308 DPMS Spec. lower receivers. Can be installed to rotate either 49 or 90 degrees. All parts manufactured by Quentin Defense: Levers machined from 6061-T6 aluminum and coated in Type III Class 2 hard coat anodize, center core machined from 304 stainless steel and coated in black nitride.