NightStar 2x50mm Gen-1 Tactical Night Vision Rifle Scope Black

NightStar 2x50mm Gen-1 Tactical Night Vision Rifle Scope Black. This Night Vision Rifle Scope is equipped with a dual focus that is controlled by an internal focusing knob located near the 50 mm front objective lens with flip-up cap so you can adjust the clarity and focus on short range objects while still having long range capability. The internal focusing mechanism combined with fully multicoated optics give increased clarity right to the edges of the 15 degree field of view and make bore sigh