NIGHTFORCE ATACR 4-20x50 F1 ZeroStop .1 Mil-Radian DigIllum PTL Tremor3 Riflescope C637

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  • Parallax adjustment from 11 yards to infinity
  • Integrated Throw Lever
  • Xtreme Speed Thread
  • Hi-Speed ZeroStop
  • DigIllum reticle illumination

If there is such a thing as a "professional" riflescope, it is an ATACR. They are designed for military, law enforcement, hunters, and other tactical professionals and for those who simply want to shoot like a professional.

The Nightforce ATACR 4-20x50 F1 riflescope fills an important magnification range in the ATACR line. Equally at home atop a bolt action or a semi-automatic rifle, the 4-20x50 F1 is smaller and lighter than the 5-25x56 F1 while offering a 25% improvement in magnification over the 4-16x42 F1. With Digillum, a ZeroStop turret, power throw lever, ED lenses, and 20x max magnification, the ATACR 4-20x50 F1 is Nightforce's apex mid-power scope.


Magnification 4-20x
Objective Lens Diameter, mm 50
Field of View (FOV) @ 100yds, ft 23.6-6.1
Eye Relief, in 3.5"
Exit Pupil, mm 8.3-2.5
Scope Tube Size, mm 34
Click Value .1 MRAD
Elevation Adjustment Range 38 MRAD
Windage Adjustment Range 29 MRAD
Parallax Adjustment, yds 11 to infinity
Reticle Position First Focal Plane (F1/FFP)
Reticle Tremor3
Illumination Digillum
Elevation Feature ZeroStop
PTL (Power Throw Lever) Standard
Mounting Length, in 4.1"
Overall Length, in 13.9"
Weight, oz 35.2
In Box - Tenebraex Flip Up Covers
- Cleaning Fob / Cleaning Cloth
- Multi-Tool
- Power Throw Lever
- Stickers
- Owners Manual
- Windage Beauty Ring
- Sunshade
Categories: Scopes, Optics, Accessories
Condition: New
SKU: 847362017969
MPN: C637
UPC: 847362017969
Vendor: Gunprime
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