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 Mfg: Swampfox Optics