Sig Sierra3 BDX 2.5-8 Riflescope AR Combo 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. - Features - Integrated BDX™ Ballistic Data Xchange. A rangefinder and riflescope system that uses ballistics environmental 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. - The updated SIG BDX App now include profiles for crossbow ballistics through entering bolt weight and speed. - 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 across 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 - The SIERRA3BDX is covered by SIG SAUER’s INFINITE Guarantee™ and Electronics Limited Warranty see website for full details - SIG BDX APP Now includes the ability to create multiple profiles for both firearms and crossbow ballistics. - Specs - ADJUSTMENT INCREMENTS: 0.25 MOA - MAGNIFICATION: 2.5-8x - WEIGHT: 19.4 oz (550 g) - OBJECTIVE LENS DIAMETER: 30 mm - BATTERY: (2) CR2032 - FOCAL PLANE: Second - ILLUMINATION: Yes - RETICLE: BDX-R1 Digital - TUBE DIAMETER: 30mm