DNT Optics Hydra LRF 2-8x 50mm Thermal Rifle Scope 50Hz 640x512 HS650R. Specifications for DNT Optics Hydra LRF 2-8x 50mm Thermal Rifle Scope: Manufacturer: DNT Optics Color: Black Magnification: 2 - 8 x Objective Lens Diameter: 50 mm Display...