Nightforce ATACR 4-20x50 F1 - Zerostop
ATACR™ 4-20x50 F1
New for 2021, the 4-20x50 F1 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 our apex mid-power scope.
Magnification Range
4-20x
Focal Plane
First Focal Plane (F1/FFP)
Body Tube Diameter
34mm
Overall Length
13.9 in/353 mm
Mounting Length
5.9 in/150 mm
Weight
35.2 oz/998 g
Click Value
.250 MOA or .1 MRAD
Internal Adjustment Range
E: 130 MOA/38 MRAD W: 100 MOA/29 MRAD
Parallax Adjustment
11 yd–∞
Eye Relief
3.5 in/90 mm
Field of View @ 100 yd/m
4x: 23.6 ft/7.9 m 20x: 6.1 ft/2.0 m
Exit Pupil
4x: 8.3 mm 20x: 2.5 mm
Illumination
Elevation Feature
Power Throw Lever
Standard
Part Numbers: C642, C643, C644, C637
Product Code: C642, C643, C644, C637