Details Built upon SIERRA3 award-winning technology, and the SIG SAUERA(R) BDX Ballistic Data Xchange technology, the SIERRA6 family of riflescopes provides the hunter or marksmen with an intelligent auto-holdover specific to their ballistics, target, and environment. Pairing a SIERRA6 to a BDX equipped rangefinder allows users to bring the capability of Applied BallisticsA(R) into the field without the need for a mobile device. Features Integrated BDX Ballistic Data Xchange 2.0 with Up to 95% Light Transmission Advanced HDXA(R) 6x Optical System Automatic Hold-over Dot on a Digital Focal Plane Ballistic Profiles Compatible with Centerfire, Muzzleloader, and Crossbow Platforms Innovative KinETHICTM Kinetic Energy Transfer Indicator for Ethical Shots Dependable Waterproof and Fog-Proof Performance (IPX-7 for Complete Immersion up to 1 Meter) Argon Purged for an Enhanced Lifetime of Performance LevelplexTM with Auto Levelplex Mode Specifications Magnification 3-18x Objective Lens Diameter 44 mm Weight 23.8 Illumination Settings 10 Daytime Maintube Diameter 30mm Total Elevation Travel 60 MOA Total Windage Travel 60 MOA Travel Per Rotation 20 MOA Parallax Setting Adjustable Eye Relief Low (IN) 3.7 Eye Relief High (IN) 3.9 Field of View Low (FT @ 100 Yards) 34.9 Field of View High (FT @ 100 Yards) 5.8 Diopter Adjustment Range +/- 2 Internal Gas Purge Argon Ocular Outer Diameter (in) 1.61 Color Black Mount Included No Battery (2) CR2032 Focal Plane Digital Reticle BDX-R2 Illumination Yes