The RT-3 from Burris is a fixed 3x magnification red dot with a huge field of view! It's small footprint and lightweight makes it handle like a dream. - Reticles: Ballistic 3X - Reticle Color(s): Red - Magnification: 3x - Clear Objective Lens Diameter: 33.8 mm - Finish: Matte - Mount: Picatinny - Eye Relief: 2.6 in. - Elevation Adjustment Total Capability: 50 MOA - Windage Adjustment: 50 MOA - Length: 3.5 in. - Weight: 8.8 oz. - Battery: CR2032