DNT Optics ZULUS 4K ZT4K324R 4K Digital Day & Night Vision Optic LRFThe DNT Optics ZULUS 4K ZT4K324R is the digital day night vision optic that's making dedicated night vision devices look overpriced. With a 4K sensor delivering the sharpest digital image in any DNT optic, this scope works in broad daylight AND total darkness, with a built in IR illuminator that lights up the night without any visible signature. Integrated laser rangefinder and ballistic calculator make the ZULUS 4K ZT4K324R the smartest entry into