Crafted for concealed carry, Sentinel II showcases a fusion of advanced features in a sleek, cohesive design. The second-generation micro dot maintains a standardized RMSc footprint and slimline profile while maximizing visibility with a larger 20mm window. Uniquely equipped with a patented removeable rear sight guide installed in front of the window, the guide provides backup support for pistols that sacrifice rear iron sights for dot sight compatibility. Sentinel II displays a 3 MOA dot in red or green illumination and is equipped with Shake N’ Wake auto on/off functionality for grab-and-go readiness.? SPECIFICATIONS: Dot Size: 3 MOA Magnification: 1X Lens Diameter: 20mm Illumination: LED with 10 brightness settings Waterproof: IPX 7 Rated Max Elevation / Windage Adjustment: 80 MOA Parallax: Parallax free @33 yards Battery Type: CR2032 Battery: Up to 50,000 hours Lens Coating: Multi Coat/Hydrophobic/Anti Fog Lens Material: 7075 Aluminum Impact Resistance: 1500 G Forces Mount Type: RMSc footprint Rear Sight Guide: Standard Blackout or Tritium Stealth