The BRAVO6T-BDX is the most advanced rifle optic on the market blending the functionality of a premium first focal plane riflescope with the capabilities of an advanced ballistic computer. - SIG SAUER's all-new eTRAK elevation dial leverages ZeroSync technology to monitor user input and manipulate the calculated shoot-to distance in the optic�s heads-up display eliminating the need to reference charts or range cards. Simply rotate the eTRAK dial until the displayed shoot-to distance corresponds with the target distance and engage without ever leaving your cheek weld. - ZeroSync connects the eTRAK elevation dial with the power of Applied Ballistics� while accounting for prior adjustments and providing a custom solution that always represents the current conditions and ensures ease of operation when tenths of a second matter. - Powered by a 6x magnification optical system the BRAVO6T-BDX delivers a sharp bright image using SIG SAUER's proven HDX lenses for unrivaled performance in varied light. - FEATURES: - eTRAK Elevation Dial With Multi-Lock Zero Stop and Tactile Adjustments - ZeroSyn Updates Ballistic Solution with Live User-Input - Low-Profile Heads-Up Display Within Field of View - Onboard Environmental Sensor Suite Measures Pressure Temperature Humidity - Advanced Bluetooth with up to 30 Yards of Connectivity to KILO BDX Laser Rangefinders and Other Devices - HDX Optical System Combines Extra-Low Dispersion (ED) Glass with High-Transmittance Lenses - 6x Magnification System - Includes ALPHA5 mount with LRF diving board - Fully Backed by SIG SAUER's Infinite Guarantee - Assembled In Oregon USA - FOCAL PLANE First - RETICLE MRAD DEV-L 2.0 - ADJUSTMENT INCREMENTS 0.1 MRAD - WEIGHT 32.6 oz - MAINTUBE DIAMETER 35mm - TRAVEL PER ROTATION 10 MRAD - FIELD OF VIEW LOW (FT @ 100 YARDS) 21 - FIELD OF VIEW HIGH (FT @ 100 YARDS) 3.5 - EYE RELIEF LOW (IN) 3.7 - EYE RELIEF HIGH (IN) 3.9 - EXIT PUPIL LOW (MM) 8.1 - EXIT PUPIL HIGH (MM) 1.9 - TOTAL ELEVATION TRAVEL 40 MRAD - TOTAL WINDAGE TRAVEL 40 MRAD - MOUNT TYPE Included ALPHA5 1.250 - BATTERY (1) CR-1/3N - OBJECTIVE LENS DIAMETER 56 mm - COLOR Black - MAGNIFICATION 5-30x - ILLUMINATION Yes