Pvs14 built by Pete Lesbo at I2 technologies. This unit has the upgraded vyper housing, its Green Phos gen3. I have several IR filters that I run on the ocular side it makes the green a different color that’s easier on the eyes and more so in dark conditions. I have a weapons mount. Not all of the filters are included in the sale as well as the 3x magnifier. If you want to get into night hunting a 14 is the perfect place to start. There rugged and work forever one lithium AA will last months. I do not have papers it’s pry 2000 FOM at best or less.