LEUPOLD 66815 6X42 FX-3 WIDE DUPLEX

The Leupold FX-3 6x42mm Wide Duplex fixed-power riflescope (66815) is a matte black hunting and field riflescope built for hunters and sport shooters who want clean optics, simple operation, and long-term dependability from a fixed 6x magnification platform. If you are searching for a fixed power 6x riflescope for hunting or field use, the FX-3 delivers proven clarity in a no-compromise package.

Key Features

• Manufacturer Part Number: 66815
• Magnification: Fixed 6x
• Objective Lens Diameter: 42mm
• Main Tube Diameter: 1 inch
• Reticle: Wide Duplex, second focal plane
• Finish: Matte black
• Construction: 6061-T6 aircraft-grade aluminum
• Weight: 13.6 oz
• Overall Length: 13.2 inches
• Eye Relief: 4.4 inches
• Field of View at 100 yards: 17.3 feet
• Fixed Parallax Distance: 150 yards
• Elevation and Windage Adjustment: 1/4 MOA per click, 55 MOA total range
• Weatherproofing: 100 percent waterproof and fogproof, second-generation argon/krypton gas purging

Special Features

• The Xtended Twilight Lens System maximizes light transmission during low-light conditions, adding usable shooting time at dawn and dusk when game is most active.
• DiamondCoat 2 lens coating provides enhanced scratch resistance, protecting the glass through hard field use and daily handling.
• Multicoat 4 lens treatment reduces glare and improves contrast across the full field of view in bright or harsh lighting conditions.
• Blackened lens edges minimize internal light scatter, contributing to a cleaner and sharper image at the edges of the sight picture.
• The fast-focus eyepiece allows rapid reticle diopter adjustment without tools, letting you dial in a sharp reticle picture at the range or in the field.
• The Wide Duplex reticle features thicker outer posts that draw the eye to center quickly, with fine inner crosshairs that keep the aiming point clear against any background.
• Designed, machined, and assembled in the USA and backed by Leupold's lifetime guarantee.

Practical Benefits

• The fixed 6x magnification eliminates the complexity of variable power adjustments, giving you a consistent sight picture every time you mount the rifle.
• The 42mm objective and Xtended Twilight system work together to pull in maximum light during early morning and late evening hunts when legal shooting light is limited.
• At 13.6 oz, the FX-3 keeps your rifle balanced and comfortable through long days in the field or on the range without adding unnecessary bulk.
• The 4.4-inch eye relief and fast-focus eyepiece make this scope compatible with a wide range of shooting positions and bolt-action rifle setups.
• The second-generation argon/krypton purging process keeps the optic fog-free in temperature swings, rain, and wet brush conditions without any maintenance required.
• Whether you carry it through timber, across open fields, or mount it on a dedicated hunting rifle, the Leupold FX-3 6x42 (66815) gives you a scope you can trust season after season without second-guessing your glass.

The Leupold FX-3 6x42mm Wide Duplex riflescope (66815) is a proven platform and a smart addition for any hunter or field shooter who values optical quality, mechanical simplicity, and lifetime American-made reliability.