Sig Sauer Romeo Pro 4XT Tan 1x Red Dot - Ballistic Circle Dot - Ballistic Circle Dot - The Sig Electro-Optic Romeo4 Pro is designed, built and tested for hard, professional use. The red dot sight features high performance lens coatings for elite performance in bright light or passive NV conditions; top mounted activation with NV Override control; four onboard, user selectable reticle options; durable .50in hex mount; 9 daytime settings, three NV settings; three mounting heights come standard in the box and 50,000 hour runtime with common AAA Battery. Includes clear flip-backs, opaque front flip back and ARD Kill-Flash. Assembled in USA.