SIG SAUER 1-4x24 TANGO4 Riflescope (MOA Milling)

BH #SI14X24T4MOA • MFR #SOT41113
SIG SAUER 1-4x24 TANGO4 Riflescope (MOA Milling)
Key Features
  • Glass-Etched 1st Focal Plane Reticle
  • Partial Illumination, 10 Levels
  • Large 30mm Maintube
  • 1/2 MOA Impact Point Correction
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Ideally suited for close and mid-range applications, the Sig Sauer 1-4x24 TANGO4 Riflescope combines outstanding optics with a partially illuminated reticle and precision turret system to produce a scope that can be used for 3-Gun competitions, varmint hunting, or close quarter engagements.
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  • 1Description
  • 2Optical Performance
  • 3MOA Milling Reticle Details
  • 4Turrets
  • 5Use and Handling
  • 6Construction Details

Ideally suited for close and mid-range applications, the Sig Sauer 1-4x24 TANGO4 Riflescope combines outstanding optics with a partially illuminated reticle and precision turret system to produce a scope that can be used for 3-Gun competitions, varmint hunting, or close quarter engagements.

The low magnification provides near reflex sight performance on 1x power with the wide field of view, simple reticle layout, and fast target acquisition you need for CQB while still offering a 4:1 zoom that allows you to clearly see and identify targets at medium range. Complementing the zoom range is a suite of optical technologies that are designed to enhance your view. First is the use of low-dispersion glass, which minimizes distortion and light absorption to transmit bright and clear images. Next Sig employs ultra-wide broadband, anti-reflection SpectraCoat lens coatings, along with protective LenShield and LensArmor coatings. This combination of glass and lens coatings produces views with sharp resolution and high contrast in all light conditions. The front of the objective has threads for filters—like polarizing or ND—to enhance the views, especially when operating in snowy conditions or on/near water.

The reticle, located on the first (front) focal plane, features illuminated crosshairs for improved visibility with 10 selectable intensity levels from two dim settings that are night vision device (NVD) compatible all the way up to a bright setting that makes it clear and distinct in full daylight. A motion detection system, MOTAC, automatically activates the illuminated portion of the reticle when the weapon is shouldered and powers it down when it senses inactivity after 2 minutes—ensuring a long battery life and instant illumination when you need it. Exposed tactical turrets provide 1/2 MOA per click impact point correction with wide 180 MOA windage and elevation adjustment ranges that allow you to precisely place your shots at distance. A free Sig Ballistic Turret (SBT) elevation dial is included with the scope that allows you to have a custom dial created for your specific caliber and load to further improve your shot accuracy. You get one free with your scope purchase and you can order others for different rifles at an additional cost.

To withstand the repeated recoil of regular use, the one-piece maintube is made of lightweight but strong aluminum with a robust 30mm diameter. At just 10" long and weighing only a pound, the overall form factor of the scope won't add excessive weight or bulk to your rifle so you can move quickly and maneuver it with ease. The housing is fogproof and sealed to an IPX7 rating to make it waterproof, submersible, and resistant to internal fogging.

Optical Performance

  • 1-4x magnification is ideal for close to medium-range applications, 3-Gun competitions, and varmint hunting—with the low power offering near reflex sight target acquisition and tracking speed
  • Compact 24mm objective lens presents a low profile and light weight to make carrying and maneuvering easier
  • Low-dispersion glass provides enhanced light transmission to produce bright and clear high-contrast views with accurate color
  • Highly efficient, ultra-wide broadband, anti-reflection SpectraCoat lens coatings reduce surface reflections across the entire visible spectrum, improving light transmission
  • Extremely durable and abrasion-resistant LensArmor lens coatings ensure the lenses avoid scratches and other abrasions that can interfere with clear views
  • LenShield coatings repel water, grease, skin oils, and lens surface contaminants that can impair view clarity
  • Spacious 97.5-foot field of view at 100 yards on 1x power, 23.6-foot on 4x

MOA Milling Reticle Details

  • First focal plane placement is ideal for long-range precision hunting and shooting; the reticle size changes in proportion to the magnification and maintains consistent subtensions throughout the zoom range
  • Reticle etched on glass to ensure proper optical alignment without fading over time
  • MOA-based modified duplex crosshair configuration specifically designed for mid- to long-range tactical engagements and hunting
  • Simplified design with long crosshairs presents an open and uncluttered field of view
  • Non-illuminated outer posts with illuminated thin center hairs
  • Illuminated hairs offer improved visibility in challenging light
  • Hash marks on all cross-hair axes assist in estimating range to and size of target, ballistic drop compensation (BDC), hold-over/under, and to give lead to moving targets
  • 8 daylight and 2 NVD-compatible brightness settings enable easy adaption to ambient light conditions
  • Runs on one included CR2032 battery


  • Exposed finger-adjustable tactical turrets enable fast and fine adjustments in the field
  • 1/2 MOA per click impact point correction
  • Generous 180 MOA windage and elevation adjustment ranges
  • LockDown Zero System on turrets: A stop-locking turret that allows a rapid return to zero that also locks at zero
  • Combination illumination control and parallax adjustment turret
  • Free elevation Sig Ballistic Turret (SBT) that is matched to the user's rifle/load and allows for correct BDC at any range; one free with purchase, others are available at additional cost

Use and Handling

  • 4:1 zoom mechanism transitions smoothly through the entire magnification range
  • MOTAC motion sensor system immediately powers up illumination when it senses motion and powers down when it does not detect movement for 2 minutes in order to extend battery life
  • M25x0.5 objective filter thread allows the use of front filters, like polarizing or neutral density, to enhance the view
  • 3.3" eye relief provides a generous eye box to enhance comfort while looking through the eyepiece
  • Comfortable exit pupil at all magnifications for easy use in low or challenging light

Construction Details

  • Sturdy 30mm maintube provides the strength to hold up to repeated recoil
  • Integrated throw lever on the zoom collar enables fast and accurate adjustments, even when wearing gloves
  • Aggressive texture on all adjustments ensures positive contact and movement in cold and wet weather or while wearing gloves
  • Lightweight and durable aluminum housing
  • Scratch-resistant and reflection-limiting matte black anodized finish
  • Fogproof and IPX7-rated to be waterproof and submersible to 3.3 feet for up to 20 minutes
  • Compact 10-inch length
  • Light 1-pound weight
UPC: 798681599851


Magnification1 to 4x
Objective Lens Diameter24 mm
Field of View1x: 97.5' @ 100 yd / 32.4 m @ 100 m
4x: 23.6' @ 100 yd / 7.8 m @ 100 m
Exit Pupil Diameter1x: 15.4 mm
4x: 3.8 mm
Eye Relief3.3" / 8.4 cm
Reticle TypeMOA Milling Reticle (First Focal Plane)
Illumination TypeLED
Illuminated ColorRed
Brightness SettingsAdjustable Brightness (10 Levels)
Filter Thread25 mm
Impact Point Correction1/2 MOA per Click
Windage Adjustment180 MOA
Elevation Adjustment180 MOA
Parallax CorrectionYes
Water ResistanceWaterproof, IPX7
Maintube Diameter30 mm
Battery1 x CR2032
DimensionsLength: 10" / 25.4 cm
Weight15.9 oz / 450 g
See any errors on this page? Let us know



What is the parallax range?
Asked by: Michael J.
The SIG SAUER 6-24x50 TANGO4 Side Focus Tactical Riflescope has been discontinued. There is no information on the parallax range.
Answered by: John
Date published: 2019-05-23
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