Build Kit Includes: NVG-ALPHA Housing 2x Light Pipes 2x Tube Locking Rings 2x D-Collars with Set Screws (PVS-14 only) Lenses (optional) Image Intensifiers are NOT Included but available separately, Click Here Assembly tools, lenses and other components available, Click Here Key Features: Robust aluminum hinge design Variable gain with all Photonis tubes and some NNVT tubes Gain memory remembers gain settings even when turning device off and on Individual pod shutoff when articulated (feature can be toggled ON/OFF) Automatic shutoff when flipped past vertical (feature can be toggled ON/OFF) 2 minute idle shutoff mitigates damage from devices being left on when not in use (feature can be toggled ON/OFF) Intuitive and ruggedized interpupillary stop design redirects all impact forces inwards into a reinforced aluminum plate Powered by single CR123A battery Optional remote battery pack with external 4 pin Fischer port Specifications: Construction: Polymer and AluminumPower: CR123A (~20 hours) or External FischerOperating Voltage: 1.2-5VOperating Temperature: -51°C to +49°CIR Illuminator: On BoardManual Gain Control: Compatible with EGAC Pigtail, 3 Plate MX10160, 4 Plate MX10160Weight: ~195g Housing Only, ~470g with RPO 3.0 Lenses and Lightweight Diopter, ~560g with BrightPath Solutions MIL40 Lenses, ~595g with Noctis/Fujinon LensesShock/Drop Resistance: meets MIL-STD-810G Transit DropWater Immersion: meets IP68, 2 Meters for 1 Hour Origin:Housing Components Made in ChinaAssembled in Canada