Prophet River Firearms

The 4-20×50 F1 fills an important magnification range in the ATACR line. Equally at home atop a bolt action or a semi-automatic rifle, the 4-20×50 F1 is smaller and lighter than the 5-25×56 F1 while offering a 25% improvement in magnification over the 4-16×42 F1. With Digillum, a ZeroStop turret, power throw lever, ED lenses, and 20x max magnification, the ATACR 4-20×50 F1 is our apex mid-power scope.

• Tenebraex Flip Up Covers
• Cleaning Fob/ Cleaning Cloth
• Multi-Tool
• Power Throw Lever
• Stickers
• Owners Manual
• Windage Beauty Ring
• Sunshade

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 or 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 - Digillum
Elevation Feature - ZeroStop
Power Throw Lever - Standard