Sig Sauer Whiskey4 5-20x50

• 5-20x magnification range: Covers the gap between precise zeroing, load development, and longer-range target work, giving the scope enough low-end flexibility for field use and enough top-end detail for careful shot placement.
• 50 mm objective lens: The larger front lens supports a brighter sight picture at higher magnification, which helps when aiming in subdued light or when trying to resolve small targets at distance.
• First focal plane layout: The reticle scales with magnification, so holdover and ranging references remain consistent throughout the zoom range instead of being tied to one power setting.
• Side parallax adjustment: Fine focus can be tuned from the shooting position, reducing apparent reticle shift on distant targets and making the image easier to sharpen for precise work.
• Argon-purged, waterproof construction: The sealed 30 mm tube resists internal fogging and weather exposure, making the riflescope more dependable during rain, temperature swings, and regular transport.

About the Sig Sauer Whiskey4 Series

The Sig Sauer WHISKEY4 series is a line of hunting riflescopes built around 4:1 variable magnification, giving shooters a practical balance between field versatility and enough top-end power for more deliberate shots. Within SIG SAUER’s electro-optics range, the series is aimed at hunters who want a scope that can move between general stalking, open-country use, and longer shots without becoming overly bulky or complicated.

WHISKEY4 models are built as waterproof and fog-proof optics with Argon-purged lenses, reflecting a design focus on dependable outdoor use in changing weather. The series is offered in both first- and second-focal-plane configurations, with reticle options including Hellfire Milling Hunter 2.0, Hellfire BDC1, and Hellfire Quadplex patterns. Select models also add illuminated Hellfire reticles for better visibility against dark backgrounds. Across the range, the idea is straightforward: useful magnification spans, practical reticle choices, and field-ready construction for modern hunting rifles.

About the Sig Sauer Whiskey4 5-20x50

The Sig Sauer Whiskey4 5-20x50 is the higher-magnification end of the WHISKEY4 family, suited to shooters who need more precision at distance without stepping into an oversized long-range optic. Its 5-20x zoom range makes it well suited to varmint shooting, target work, and hunting in open terrain where careful shot placement matters. At the same time, the 50.00 mm objective lens helps maintain a usable image as magnification rises, which is especially valuable when aiming at small targets or working in fading light.

This model uses a 30 mm main tube and a first focal plane configuration, as indicated by the product variant, which gives the reticle a consistent relationship to the target across the magnification range. In practice, that matters for holdovers and ranging because the subtensions stay true whether the shooter is backed off for a wider view or dialed up for finer aiming. The side-focus parallax adjustment adds another practical advantage by letting the image be tuned for distance from the firing position, helping reduce aiming error on small or distant targets.

The scope is also built for regular field use rather than bench use alone. Fully multicoated lenses support contrast and light transmission, while the 88.90-99.06 mm eye relief gives a more forgiving head position across the zoom range. With IPX-7 waterproofing, fogproof construction, shock resistance, and Argon filling, the Whiskey4 5-20x50 is configured to stay serviceable through wet weather, recoil, and temperature changes.

About Sig Sauer

SIG SAUER traces its origins to a wagon factory established near the Rhine Falls in Switzerland in 1853. The company’s modern U.S. operation, SIG SAUER, Inc. in Newington, New Hampshire, has grown into a broad manufacturer of firearms, electro-optics, ammunition, airguns, and suppressors. Within optics, the company produces riflescopes, red-dot sights, and rangefinders, giving it a product range that spans hunting, sporting, and professional applications.

Its electro-optics development includes technologies such as the HDX optical system, which combines extra-low-dispersion glass with high-transmittance glass, and the HellFire illuminated reticle, which uses fiber-optic technology. SIG SAUER has also built a strong reputation in tactical optics through the TANGO line, including the TANGO6T selected by the U.S. Army for its Squad Designated Marksman Rifle System. The company adopted the SIG SAUER name in 2007, continuing a long association with precision shooting equipment.

Main Features

• Product type: Riflescope
• Series: Sig Sauer Whiskey4
• Made in: Japan
• Magnification: 5.00 x - 20.00 x
• Objective lens diameter: 50.00 mm
• Main tube diameter: 30 mm
• Field of view: 6.00 m/100m - 1.50 m/100m
• Eye relief: 88.90 mm - 99.06 mm
• Diopter range: -2/+2 dpt
• Parallax adjustment: Yes - side focus
• Zero Stop: No
• Turret turns: ST - Single Turn
• Turret rotation direction: CCW
• Elevation adjustment range: 15.12 mrad / 52.00 MOA
• Windage adjustment range: 15.12 mrad / 52.00 MOA
• Elevation per turn: 25 MOA
• Fast focus eyepiece: Yes
• Lens coatings: Fully Multicoated
• Waterproof rating: IPX-7
• Fogproof: Yes
• Shockproof: Yes
• Gas filling: Argon
• Length: 366.00 mm
• Weight: 640.00 g
• Color: Black

Warranty

5 years. SIG Sauer states a 5-year warranty for this riflescope, matching the warranty period given for the product.