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The TANGO6T is becoming one of our favorite first focal plane low-power variable optics among the countless options available these days. There will always be some trade-offs with LPVOs, but the TANGO6T’s horseshoe reticle manages to balance short and mid-range engagements very well. The TANGO6T has incredibly clear glass, a locking illumination turret, and checkered surfacing that provides exceptional grip in any environment.

Unfortunately, this DVO is a contract overrun that won’t be around forever. The DVO comes with lay-flat scope caps, an anti-reflection device (ARD) and is pre-installed in SIG’s 1.54″ ALPHA4 mount.

Need one without a mount? We also carry the SIG SAUER TANGO6T 1-6X24mm with a different reticle and no mount or scope caps.


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SIG SAUER TANGO6T; SIG 1.54″ ALPHA4 Mount; killflash anti-reflection device (ARD); scope caps; throw lever; SIG lenspen; Energizer CR2032; hex key

We include an 8.5″ x 11″ rifle zero target with every optic. We recommend a 100-meter zero for the TANGO6T on most rifles.
How to Zero in 2 Minutes – Video – T.REX ARMS

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  • Extra-low dispersion and high transmittance glass provides ultra-high resolution, extreme clarity, and industry-leading light transmission.
  • Ultra-wide broadband, anti-reflection lens coatings reduce surface reflections across the entire visible spectrum.
  • Proprietary Mil-Spec oleophobic coating sheds water, oil, and gunk to ensure a clean sight image at all times.
  • The abrasion-resistant lens coating’s extreme durability ensures the lenses will stay sharp, bright, and clear.
  • Deflection armor trapezoidal surfacing breaks up the shape and visibility of the optic.
  • Electronically illuminated glass-etched reticle with 9 daylight levels of illumination provides a bright, defined aiming point for precision shot placement in any condition. Features 2 night vision settings and a locking illumination dial.
  • Waterproof and fog-proof performance; IPX-8 rated for complete and continuous immersion at 20 meters.
  • Laser engraved mounting line for aligning the riflescope to scope rings.
  • Comes with the ALPHA4 Mount factory-installed. Previously unavailable on the commercial market, the ALPHA4 cantilever mount has been widely fielded by the US DoD.
  • Includes magnetically retained lay-flat flip-back caps.
  • Includes a power selector ring throw lever.
  • Includes a killflash Anti Reflection Device (ARD) to reduce glare and reflections.
  • SIG SAUER Infinite Guarantee: Optics are guaranteed forever. It’s an unlimited lifetime guarantee.

Assembled in the USA.

The DWLR-556 reticle is specific to the DVO and is optimized for 62gr 5.56mm from a 16-inch barrel. For further information and subtensions, view the user manual below.

View the User Manual HERE.


Focal PlaneFirst
Adjustment Increments0.2 MRAD
Weight22.1 oz.
Maintube Diameter30 mm
Travel Per Rotation20 MRAD
Parallax Setting300 m
Field of View High/Low (@100yds)105.8/17.7 ft.
Eye Relief High/Low4.1/3.9 in.
Exit Pupil High/Low11.4/4.0 mm
Diopter Adjustment Range+/- 2.5
WaterproofingIPX 8
Ocular Outer Diameter1.81 in (46mm)
Objective Outer Diameter1.18 in (30mm)
Internal Gas PurgeArgon
Illumination Settings9 Daylight/2 NV
Total Elevation Travel31 MRAD
Total Windage Travel31 MRAD
Objective Lens Diameter24 mm

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This product cannot be shipped outside the US.

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Using LPVOs for Threat Identification – Video – T.REX ARMS

Testing and Evaluating Your Kit – Video – T.REX ARMS

50 Meter Carbine Marksmanship – Drills – T.REX ARMS

200 Meter Carbine Marksmanship – Drills – T.REX ARMS

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