Product HighlightsIn-line with rifle sight attachmentThree different methods of mounting satisfying almost any user's configuration:Picatinny (MIL-STD 1913) mountRiflescope mount with several ring sizesWorks in combination with any daytime scope with 1-20x magnificationWorks with reflex sights (ACOG, Aimpoint, Elcan, etc.)MIL-STD The NVS 27M is Newcon Optik’s most advanced night vision clip-on to date and represents a significant improvement on other clip-on systems currently available. Utilizing any of Newcon Optik’s AG or AGBW IIT systems, this high-resolution unit is designed to mount in front of virtually any daytime riflescope. It differs from the competition in many ways, but primarily in its compatibility with day sight magnifications between 1x and 20x. As military and police shooters continue to use higher magnification day sights, this compatibility range provides a significant advantage in the field, enabling the use of most, if not all, of a given day sight’s magnification capability. The NVS 27M was designed by shooters, and its extra wide field of view, manual gain control system and extended target detection range make it the world’s most complete night vision clip-on system. The NVS 27M 1x 3rd Generation Compact Night Vision Clip-On from Newcon Optik converts your day riflescope into a night vision device. It features a 3rd generation intensifier tube with a Gallium Arsenide photocathode, manual gain, resolution of 64 lp/mm, and a SNR of 25. The 3rd generation image intensifier tube utilizes an autogated power supply that provides outstanding performance and enables operation in high-light conditions, slows-down degradation, and helps extend life of the device. The optical system is designed to accommodate daytime riflescopes with magnification range of 1-20x and offers a 78mm objective lens with f/1.15 F-stop. The optical system also offers a 12° angular field of view and a 33' minimum focus distance. The unit is powered by the included lithium-ion CR-123A battery. The aluminum housing is lightweight, durable, waterproof submersible to 33', and resistant to extreme temperatures.Intensifier Tube and Illuminator3rd generation Autogated supply Manual gain control Resolution of 64 lp/mm, and an SNR of 25 ABC-Automatic Brightness ControlOptical PerformanceMagnification: 1x Accommodates scopes with 1-20x magnification Lens system: 78mm, f/1.15 Field of view: 12° Close focus: 33' Exit pupil 42mmConstruction DetailsCompatible with Picatinny rails Withstands extreme temperatures Flip-out lens covers Filled with nitrogen Waterproof, submersible to 33'