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. 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. – ADJUSTMENT INCREMENTS: 0.25 MOA – MAGNIFICATION: 6.5-20x – OBJECTIVE CLEAR APERTURE: 30 mm – BATTERY: (2) CR2032 – FOCAL PLANE: Second – ILLUMINATION: Yes – RETICLE: BDX-R1 Digital – COLOR: Black