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