Sig Sauer’s Echo1 Thermal Imaging Reflex sight provides clear target imagery no matter the light conditions by using the temperature levels. Features:206x156 Uncooled VOx Bolometer Array5 default reticlesAllows for the ability to design and upload new reticlesWhite or Black hot menu selectable plus color palette and game highlightM1913 Picatinny cross-slot STANAG compliant mountThermal detection >1000yrdsTargeting range >300yrdsIPX-6 Waterproof30 Hz frame rate12 micron pixel size8 hours minimum runtime Sig Sauer Echo1B Thermal Reflex Sight, Length: 4.3" /110mm Width: 2.6" /66mmHeight: 2.7" /68mm