Crimson Trace 3 Series Tactical Rifle Scope 4-20x50mm FFP 30mm Tube LR1-MIL Illuminated Reticle Black. Crimson Trace expertly crafted these Rifle Scopes with fully multi-coated ED glass that eliminates chromatic aberration to display a crystal clear sight picture every time. With the Crimson Trace 3-Series 4-20x50 Tactical FFP Rifle Scope equipped you'll acquire targets quicker and know exactly where to aim thanks to the fully-illuminated LR1-MIL advanced reticle with windage and elevation hold-over points that help calculate the perfect shot on your target. You can use this scope to hunt in nearly any conditions or environment since the anodized aluminum tube is durable yet lightweight and resists corrosive elements of nature. Plus they're waterproof and fogproof to perform in adverse weather conditions. Take down the biggest game with the best glass when you use the Crimson Trace CTL-3420 3-Series 4-20x50 MIL/MIL Tactical Rifle Scope. Specifications for Crimson Trace 3 Series 4-20x50mm Tactical Rifle Scope: Manufacturer: Crimson Trace Objective Lens Diameter: 50 mm Magnification: 4 - 20 x Reticle: LR1(MOA) Tube Diameter: 30 mm Reticle Focal Plane: First Focal Plane (FFP) Exit Pupil: 2.5 - 12.5 mm Illumination Color: Red Finish: Matte Field of View Linear: 28.9 ft at 100 yds Eye Relief: 3.7 in Diopter Adjustment Range: -3 - 2 dpt Color: Black Adjustment Click Value: 0.1 Mil Rad Length: 17 in Adjustment Type: Mil Rad Parallax: 10 yds to infinity Illumination Type: LED Battery Type: CR2032 Width: 4.75 in Fabric/Material: 6061-T6 Aircraft Aluminum Single Piece Tube Height: 50 mm Focus Range: 10 yds to infinity Lens Material: ED Glass Optical Coating: Fully Multi-Coated Operating Temperature: -10 - 50 Celsius Water Resistance Level: Waterproof Fogproof: Yes Battery Quantity: 1 Included Accessories: Battery Flip Caps Lens Cleaning Cloth Magnification Type: Variable Additional Features: Zero Reset Ring Height: 30 mm Attachment Type: Riflescope Ring Features of Crimson Trace 3 Series 4-20x50mm Tactical Rifle Scope: Lifetime Protection Guarantee Warranty Free Batteries for Life Zero reset turrets Self-leveling scope body indicators Package Contents: Crimson Trace 3 Series 4-20x50mm Tactical Rifle Scope Battery System Manual Reticle Manual System Tools 2x Flip caps Lens cleaning cloth Crimson Trace CTL-3420: 3 Series Tactical Rifle Scope 4-20x50mm FFP 30mm Tube LR1-MIL Illuminated Reticle Black