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Sig Sauer USED SIERRA3BDX 2.5-8x32mm BDX-R1 Reticle Riflescope w/ALPHA 2 Base and Offset ROMEO1 Pro Reflex Sight SOSBDX321R1 - Open Box UA2687

SKU UA2687

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SIERRA3BDX 2.5-8x32 Riflescope

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.


The ROMEO1PRO brings a new level of durability and performance to the miniature open-reflex red dot sight. Its aircraft grade aluminum housing ensures corrosion resistance under the harshest environments, and a new upgraded point-source emitter provides increased brightness in day or night conditions with 12 brightness settings. The molded glass aspheric lens has upgraded high performance coatings for superior light transmittance and zero distortion giving you fast, responsive target acquisition and accuracy. The ROMEO1PRO includes a ruggedized protective shroud in the box for extreme durability.

ALPHA2 Mount

Sig Sauer's proprietary steel alloy ALPHA2 Scope Mounts are machined so that the mount is both strong yet ductile, allowing the rings to form perfectly around a riflescope. The steel rings are epoxy powder coated to prevent oxidation and resist gun oils, cleaning solutions, and outdoor exposure. The centerline height measurement of the ALPHA2 30mm scope mount is 1.53". Includes 45° red dot mount for ROMEO1 Pro red dot sights.


  • Item ConditionUsed
  • Scope Weight:19.4 oz.
  • Scope Length:11.6"
  • Magnification Range:2.5-8x32
  • Scope Objective Diameter:32mm
  • Scope Tube Size / Mount:30mm
  • Turret Adjustment (Click Value):.25 MOA
  • Elevation Turret Details:80 MOA
  • Windage Turret Details:80 MOA
  • Parallax Adjustment:Fixed @ 100 yds
  • Reticle Position:Second Focal Plane
  • Reticle Details:BDX-R1
  • Field of View:39.8 ft - 13.2 ft @ 100 yds
  • Exit Pupil:8.8mm - 4mm
  • Eye Relief:4.21"
  • Illuminated Reticle:Yes - 10 Daylight Settings
  • Package IncludesSIERRA3BDX 2.5-8x32mm Scope
    ROMEO1 PRO Reflex Sight
    ROMEO1 Offset Mount
    ALPHA 2 Scope Mount
  • Scope Finish:Black
  • Scope Turret Rotation:Counter Clockwise (CCW)
  • Product TypeRiflescopes

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