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Sig Sauer Electro-Optics SIERRA6BDX Riflescope (2-12x)


SIG SAUER Electro-Optics is pleased to introduce the addition of the Sig Sauer Electro-Optics SIERRA6BDX Riflescope (2-12x) to the Ballistic Data Xchange (BDX) family of products. The SIERRA6BDX riflescopes bring the advanced and streamlined features of BDX 2.0.

3 in stock

SKU: 798681627998 Category:

Sig Sauer ECHO3 Thermal Reflex

The ROMEO-MSR is a sealed compact red dot or green dot sight intended for MSR, carbine, shotgun and air rifle. Brightness is adjusted with a top-mounted rotary dial, featuring 10 daytime and 2 night vision settings for quick target engagement in any condition.

Electro-Optics SIERRA6BDX Riflescope Mission

Our mission with the new SIERRA6BDX riflescope line was to bring all of the advanced features of the BDX 2.0 platform to a premium 6X zoom system. These scopes feature HDX high transmission and high definition optical design, 6X magnification ranges, up to 95% light transmission, thinner Digital Focal Plane BDX-R2 hunting reticle with 194 LEDs with wind holds, and up to 30 yards of Bluetooth range to BDX connected rangefinders.

Electro-Optics SIERRA6BDX Riflescope System

The SIG SAUER Electro-Optics BDX System combines traditional hunting equipment with technology. BDX 2.0 takes all of the advanced Applied Ballistics Ultralight and Bluetooth technology and adds simplified, and easy to use, functionality to get hunters and shooters on target with unprecedented speed and accuracy. New features of BDX 2.0 include nine pre-loaded, user-selectable Ballistic Drop Compensation (BDC) reticles in all SIERRA Riflescopes, eight ballistic groups pre-loaded in KILO BDX rangefinders and the QuickBOND feature that allows for quick bonding of BDX rangefinders and scopes without the use of a smartphone app. The BDX 2.0 System is simple, fast, and intuitive.

Electro-Optics SIERRA6BDX Riflescope Ranges

The SIG SAUER Eletro-Optics SIERRA6BDX family of riflescopes is available in 3 different zoom ranges, 5-30x56mm, 3-18x44mm, and 2-12x40mm. Each features the SmartBDX reticle technology with up to 95% light transition. Other innovative features include KinETHIC, Kinetic Energy Transfer Indicator for ethical shots on target, and LevelPlex, an internal digital level that allows users to eliminate cant in their shooting system.

World-Class Firearms Knowledge

Sig Sauer is the largest member of a worldwide business group of firearms manufacturers that includes J.P. Sauer & Sohn and Blaser, Gmbh. in Germany. This global network of companies gives SIG SAUER a world-class firearms knowledge base, unparalleled design expertise, and extensive manufacturing capacity, enabling the company to respond quickly and effectively to changing market conditions and the needs of its military, law enforcement, and commercial markets worldwide.


  • Weight: 21.4oz
  • Adjustment Increments: 0.25MOA
  • Maintube Diameter: 30mm
  • Field of View: 52.5’ at 100 yards
  • Reticle: BDX-R2 Digital Ballistic Reticle w/194 LEDs
  • Waterproof: IPX-7
  • Battery: (2) CR2032


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Additional information

Weight3.165 lbs
Dimensions17 × 5.8 × 4.3 in




Field of View

8.70 – 52.50 ft @ 100 yds

Eye Relief

3.70" – 3.90"

Tube Diameter



21.40 oz


Illuminated BDX-R2

Parallax Adjustment

100 yds



Optic Coating





Sig Sauer Electro-Optics

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