The Sig Sauer Sierra4 BDX 4-16x44mm rifle scope is a precision-focused optic built for hunters and long-range shooters who want real-world ballistic solutions without unnecessary complexity. Designed around Sig Sauer's BDX (Ballistic Data Xchange) ecosystem, the Sierra4 pairs traditional scope clarity with modern digital ballistic intelligence, delivering fast, confident shot placement across varying distances. With a versatile 4-16x magnification range and a crisp 44mm objective lens, this scope is equally at home in the deer woods or stretched out over open terrain. For hunters and shooters who want to merge traditional marksmanship with modern technology-without stepping into overly complex systems-the Sierra4 BDX offers a refined, practical solution. Specifications: Manufacturer: Sig Sauer Model: Sierra4 BDX Magnification: 4-16x Objective Lens Diameter: 44mm Reticle: BDX-R2 Digital Ballistic Reticle Illumination: BDX-enabled illuminated reticle Tube Diameter: 30mm Color: Black Adjustment Type: Precision tactical turrets Compatibility: Sig Sauer BDX rangefinders & BDX app Application: Hunting, long-range shooting, precision rifles