The Vortex Crossfire II 3-9 x 50 Riflescope is a great all-around scope for shooting at the range or shooting and hunting on the mountain. The Vortex Crossfire is optimized for the .450 Bushmaster, .45-70 Government, .350 Legend.Straight-Wall BDC MOA Reticle1 in. Main TubeFast Focus EyepieceAircraft Grade Aluminum AlloyAnodized Matte Black FinishCapped TurretsVortex's Warranty can't be beat! It's the best in the industry.UnlimitedUnconditional Lifetime Warranty(Warranty does not cover loss, theft, deliberate damage, or cosmetic damage not affecting product performance.)Tube size: 1.0"Length: 12.8"Weight: 18.4 oz. Eye Relief: 3.8"Field of View @ 100 yards: 32' - 12.9'Adjustment Graduation: 1/4 MOATravel Per Rotation: 15 MOATotal Windgate Travel: 60 MOATotal Elevation Travel: 60 MOAWaterproof, Fogproof, Shockproof, Fully Multi-coated, Nitrogen Gas Purged.