--- title: "Sig Sauer Sierra3BDX Rifle Scope With BDX" description: "3.5-10x riflescope with BDX holdover dot, SpectraCoat lenses, MOTAC illumination, Auto LevelPlex, and IPX-7 waterproof performance." canonical_url: "https://www.kygunco.com/product/sig-sauer-sosbdx33111-sierra3bdx-rifle-scope-3.5-10x42mm-30mm" meta: author: KYGUNCO "og:description": "3.5-10x riflescope with BDX holdover dot, SpectraCoat lenses, MOTAC illumination, Auto LevelPlex, and IPX-7 waterproof performance." "og:image": "https://cdn.kygunco.com/assets/products/133648/thumbnail.jpg?v=1725556511" "og:image:height": "500" "og:image:width": "500" "og:title": "Sig Sauer Sierra3BDX Rifle Scope With BDX" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Optics](https://www.kygunco.com/category/optics) / [Scopes](https://www.kygunco.com/category/optics/scopes) / [Rifle Scopes](https://www.kygunco.com/category/optics/scopes/rifle-scopes) / SGS-SOSBDX33111 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/133648/main.jpg?v=1725556511) For illustration purposes only, this image may not be an exact representation of the product. # SIG SAUER Sierra3BDX Rifle Scope 3.5-10X42mm 30mm Sig Sauer SIERRA3BDX riflescope with BDX Ballistic Data Xchange, 3.5-10x magnification, 30 mm tube, and 42 mm objective. Includes illuminated auto-holdover dot, SpectraCoat lenses, MOTAC motion-activated illumination, Auto LevelPlex, KinETHIC indicator, and IPX-7 waterproof, fog-proof construction. $463.44 ** 5 interest-free payments of **$92.69** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) Pay over time with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To Your Home Fulfilled by a partner warehouse. ** Partner Fulfilled Item # 133648 Style SOSBDX33111 UPC 798681587049 Condition New Manufacturer [Sig Sauer](https://www.kygunco.com/brand/sig-sauer) Weight 2 lb Minimum Magnification 3.5x Maximum Magnification 10x Objective Diameter 42 mm Disguised within the form factor of a traditional riflescope lies the power of the SIG SAUER BDX Ballistic Data Xchange. The SIERRA3BDX riflescope provides the hunter an illuminated auto-holdover dot on targets when coupled with a [BDX capable KILO rangefinder](https://www.sigsauer.com/products/electro-optics/rangefinders/bdx-rangefinders/). Featuring exceptional SpectraCoat lenses, LevelPlex digital anti-cant, and KinETHIC kinetic energy transfer indicator, the SIERRA3BDX is incredibly simple to use. Range a target, put the holdover dot on target, pull the trigger, impact. SIG SAUER’s BDX, just CONNECT THE DOT #### Features Integrated BDX Ballistic Data Xchange. A rangefinder and riflescope system that uses ballistics, enviromental 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. 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 xacross 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. #### SPECS - ADJUSTMENT INCREMENTS: 0.25 MOA - MAGNIFICATION: 3.5-10x - OBJECTIVE CLEAR APERTURE: 30 mm - BATTERY: (2) CR2032 - FOCAL PLANE: Second - ILLUMINATION: Yes - RETICLE: BDX-R1 Digital ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). ## Watch The Product In Action 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## More from Sig Sauer ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/sig-sauer-sosbdx33111-sierra3bdx-rifle-scope-3.5-10x42mm-30mm#webpage","@type":"WebPage","description":"3.5-10x riflescope with BDX holdover dot, SpectraCoat lenses, MOTAC illumination, Auto LevelPlex, and IPX-7 waterproof performance.","name":"Sig Sauer Sierra3BDX Rifle Scope With 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