Crossfire II 6-18x44mm AO BDC Reticle (MOA) by VORTEX With long eye relief and a fast-focus eyepiece and fully multi-coated lenses and resettable MOA turrets and there's no compromising on the Crossfire II. Clear and tough and bright and this riflescope hands other value-priced riflescopes their hat. The hard anodized single-piece aircraft-grade aluminum tube is nitrogen purged and o-ring sealed for waterproof/fogproof performance. Optical Features Fully Multi-Coated - Increases light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Second Focal Plane Reticle - Scale of reticle maintains the same ideally-sized appearance. Listed reticle subtensions used for estimating range and holdover and wind drift correction are accurate at the highest magnification. Construction Features Tube Size: 1-inch diameter. Single-Piece Tube - Maximizes alignment for improved accuracy and optimum visual performance and as well as ensures strength and waterproofness. Aircraft-Grade Aluminum - Constructed from a solid block of aircraft-grade aluminum for strength and rigidity. Waterproof - O-ring seals prevent moisture and dust and debris from penetrating the riflescope for reliable performance in all environments. Fogproof - Nitrogen gas purging prevents internal fogging over a wide range of temperatures. Shockproof - Rugged construction withstands recoil and impact. Hard Anodized Finish - Highly durable low-glare matte finish helps camouflage the shooter's position. Capped Reset Turrets - Allow re-indexing of the turret to zero after sighting in the riflescope. Caps provide external protection for turret. Adjustable Objective - Adjustment for riflescope's objective lens provides image focus and parallax removal. Convenience Features Fast Focus Eyepiece - Allows quick and easy reticle focusing. Specs Magnification: 6-18 x Objective Lens Diameter: 44 mm Eye Relief: 3.7 inches Field of View: 15.2-5.3 feet/100 yards Tube Size: 1 inch Turret Style: Capped Adjustment Graduation: 1/4 MOA Travel per Rotation: 15 MOA Max Elevation Adjustment: 50 MOA Max Windage Adjustment: 50 MOA Parallax Setting: 10 yards to Infinity Length: 13.5 inches Weight : 19.6 ounces *Warranty Info: Our VIP warranty is about you and not us. It's about taking care of you after the sale. VIP stands for a Very Important Promise to you and our customer. We will repair or replace your Vortex product in the event it becomes damaged or defective—at no charge to you. If we cannot repair your product and we will replace it with a product in perfect working order of equal or better physical condition. You see and it doesn't matter how it happened and whose fault it was and or where you purchased it. You can count on the VIP Warranty for all Vortex Optics riflescopes and prism scopes and red dots and rangefinders and binoculars and spotting scopes and tripods and and monoculars. -Unlimited Lifetime Warranty -Fully transferable -No warranty card to fill out -No receipt needed to hang on to If you ever have a problem and no matter the cause and we promise to take care of you. **Note: The VIP warranty does not cover loss and theft or deliberate damage to the product.