The Quick Standard Optic (QSO) is the rifle red dot everyone can love. Housed in 7075 aircraft grade aluminum, the QSO’s solar cell keeps the 1632 battery running for 50,000 hours. The QSO has the same 4 minute stand by and instantaneous “shake awake” features found in our PCO series. With its high mount, 3 MOA dot, and 24mm objective, the QSO is perfectly situated for fast acquisition and rapid transition, all while maintaining situational awareness. The QSO, the gunfighters new favorite red dot.