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SigSauer - SIERRA3BDX 2.5-8X32 MM

SigSauer - SIERRA3BDX 2.5-8X32 MM

$599.99 Regular Price
$479.99Sale Price

NOTE: Export restrictions apply.


* May be restricted in your area.


The SIERRA3BDX 2.5-8x32mm is a compact and lightweight riflescope designed for ultra-lightweight rifle, shotgun muzzleloader, and crossbow configurations. With the power of the included BDX technology, it provides your exact holdover dot location on targets when coupled with a BDX capable KILO rangefinder. Featuring exceptional SpectraCoat™ lenses, LevelPlex™ digital anti-cant, and KinETHIC™ kinetic energy transfer indicator, the SIERRA3BDX 2.5-8x32mm is incredibly simple to use. Range a target, put the holdover dot on target, pull the trigger, impact.



  • Integrated BDX™ Ballistic Data Xchange. A rangefinder and riflescope system that uses ballistics, environmental conditions and Bluetooth® to illuminate the exact holdover dot.
  • Automatic holdover dot on a Digital Focal Plane™, combining Second Focal Plane stadias, with an OLED illuminated ballistic holdover dot that automatically scales with zoom to subtend on target at any magnification level.
  • The updated SIG BDX App now include profiles for crossbow ballistics, through entering bolt weight and speed.
  • Features our MOTAC™(Motion Activated Illumination) that powers up when it senses motion and powers down when it does not. Provides for optimum operational safety and enhanced battery life
  • SpectraCoat™ highly efficient, ultra-wide broadband, anti-reflection lens coatings reduce surface reflections to extremely low levels across the entire visible spectrum providing superior light transmission
  • SIG SAUER’s innovative KinETHIC kinetic energy transfer indicator. KinETHIC provides assistance in assuring an ethical hunt by indicating when energy on target drops below a threshold that can be set by the hunter using the SIG BDX App.
  • New for BDX riflescopes, Auto LevelPlex, automatically increases digital level sensitivity on longer shots
  • Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance
  • The SIERRA3BDX is covered by SIG SAUER’s INFINITE Guarantee™ and Electronics Limited Warranty, see website for full details 
  • SIG BDX APP Now includes the ability to create multiple profiles for both firearms and crossbow ballistics.


Warning: California's Proposition 65

  • Technology:

    • Infinite Guarantee
    • LensArmor™
    • LenShield™
    • Motac™
    • SpectraCoat™
    • Stealth ID™
    • LevelPlex
    • Ballistic Data Exchange 2.0
    • KinETHIC™ Kinetic Energy Indicator
  • Specifications:

    • Objective Size: 32mm
    • Eye Relief: Low (4.21"), High (3.46")
    • Magnification: 2.5-8x
    • Reticle Pattern: Illuminated BDX-R1 Digital (SFP)
    • Adjustment Range: 80 MOA Windage and Elevation
    • Length: 11.59"
    • Weather Resistance: Waterproof, Fogproof
    • Color: Black
    • Application: Hunting
    • Weight: 19.4 oz
    • Lens Diameter: 1.55" Objective, 1.61" Ocular
    • Exit Pupil: 8.8mm Low, 4mm High
    • Tube Diameter: 30mm
    • Field of View: 39.8' at 100 yd Low, 13.2' at 100 yd High
    • Battery Type: CR2032
    • Adjustment Increment: 0.25 MOA
  • Export Restrictions:

    Product shown herein is subject to US export regulations and may require a license prior to export. Any diversion contrary to US Government regulations is prohibited.

  • Shipping Info:

    Standard handling time is 3 to 5 business days. Due to high demand shipping for some products may be delayed.

  • Warranty & Returns:

    All exchanges and returns require the completion of a Return Merchandise Authorization (RMA) form. Once complete, follow the provided return instructions and return the merchandise as soon as possible.  Please note that your RMA number is only active for 15 days from the date of submission.

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