The ZeroTech Thrive HD THDRS28H is a compact 1x28mm red dot sight designed for quick target acquisition. It features a 3 MOA red dot reticle and is equipped with a high mount, making it compatible with both Picatinny rails and RMR footprints. The sight is multi-coated to enhance light transmission and clarity.Key FeaturesReticle: 3 MOA red dot reticle for precise aiming.Adjustment Size: 1 MOA adjustment for fine-tuning accuracy.Eye Relief: Provides unlimited eye relief for comfortable viewing.Length: Compact design at 1.77 inches long.Optic Coating: Multi-coated lenses improve light transmission.