The Nightforce ATACR 4-20x50 F1 ZeroStop .1 Mil-Radian DigIllum PTL Mil-C Riflescope C643 delivers premium performance in a versatile, mid-size package. Built for shooters who prefer the metric system, it features a first focal plane Mil-C reticle and .1 Mil-Radian click values, enabling precise holdovers and adjustments at any magnification. The 50mm objective enhances light transmission, while DigIllum reticle illumination provides optimal visibility in all lighting conditions.

Engineered in a durable 34mm main tube, this riflescope includes Nightforce’s reliable ZeroStop elevation system for instant return-to-zero and an integrated Power Throw Lever (PTL) for fast magnification changes. Its compact profile makes it a favorite among military, LE, and precision shooters who demand repeatable accuracy without added bulk or weight.