Monstrum Challenger 30mm Rifle Scope First Focal Plane MOA Reticle Black. Adjustable 3-18x magnification with an integrated throw lever for smooth adjustments. Multicoated lenses featuring Extra low Dispersion (ED) glass - reducing chromatic aberration and producing our sharpest image quality ever. An adjustable objective lens - allowing for sharper focus of the target image elimination of parallax and range estimation. Newly designed first focal plane Christmas Tree reticle providing both fast target acquisition at closer ranges and detailed ranging information at longer ranges. Available in MOA or MIL reticle versions. A more powerful reticle illumination mechanism with 6 levels of illumination all the way up to a true daylight bright reticle. Improved windage and elevation turrets with precision clicks (1/4 MOA or 0.1 MIL per click) and a configurable zero stop for elevation. Challenger Series high profile scope rings with a 1.26 inch center height and integrated anti-cant level bubble. Specifications for Monstrum Challenger 3-18x50mm 30mm Rifle Scope First Focal Plane: Manufacturer: Monstrum Objective Lens Diameter: 50 mm Magnification: 3 - 18 x Tube Diameter: 30 mm Reticle Focal Plane: First Focal Plane (FFP) Illumination Color: Red Eye Relief: 3.4 - 3.9 in Color: Black Weight: 27.9 oz Illumination Type: LED Battery Type: Lithium Metal CR2032 Package Contents: Monstrum Challenger 3-18x50mm 30mm Rifle Scope First Focal Plane Monstrum FFC31850B-CM4: Challenger 3-18x50mm 30mm Rifle Scope First Focal Plane MOA Reticle Black