US Optics DRS20: The USO DRS 2.0 is the perfect red dot solution for your everyday carry or competition handgun. Its low-profile design, crystal clear multicoated lens, and wide field of view makes target acquisition accurate and fast. The DRS 2.0 features a 6 MOA Red Dot with 10 intensity settings to help accommodate to a variety of lighting conditions. Readily accessible 1 MOA elevation and windage dials, allow for a quick and simple sight in and zeroing process.