Ade Advanced Optics RD3-011-1 Premium Grade 1x22x33 Red Dot NV Night Vision Dot Sight Red Dot with 6 brightness level and Night Vision Sight, Light and Compact, Heavy Duty, Designed for Real Fire Caliber Shock proof, Rain Proof and Fog Proof. Feature 1 M.O.A windage and elevation adjustments with audible click Magnification: 1.0x . Exit Pupil: 22-33 mm. Weight (net): 115g (4.0 ounce). Integrated 21mm weaver mount base 3 MOA Dot, Light and Compact. Operates with 2023 battery. Lens is over 1/2 thick and made of impact resistant lens optical grade glass 5 years manufacturer limited warranty