I have one Demo Nightforce ATACR 4-16x42 F1 MIL-R.  Scope is in like new condition and includes factory box and accessories that come from Nightforce.

If you need something compact yet powerful, the ATACR 4-16x42 F1 delivers. The fully multi-coated ED glass lenses within are stunning. Adjustments are standard with the Nightforce low profile ZeroHold feature, and available in .1 Mrad (12 Mils per revolution) or .25 MOA (30 MOA per revolution) increments. A capped windage adjustment helps prevent accidental adjustment in the field. The parallax adjustment is marked with approximate numbered distances and is coupled with DigIllum digital reticle illumination. The eyepiece features enhanced engraving, an integrated Power Throw Lever (PTL) and an XtremeSpeed thread for making a fast diopter adjustment. All of these features are paired with intelligent, Nightforce F1, first focal plane, reticles that provide for fast hold-off adjustments and precise ranging calculations. The ATACR 4-16x42 F1 sets a new standard in mid-powered optics.

SPECIFICATIONS For the ATACR 4-16X42 F1

Focal Plane - First

Objective outer diameter - 50mm

Exit pupil diameter - 4x:10.3mm, 16x:2.7mm

Field of view @100 yards/100 meters - 4x: 26.9ft, 16x: 6.9ft
4x: 8.1m, 16x: 2.1 m

Eye relief - 85-90mm/3.35-3.54 in

Internal adjustment range (MOA/Mil) - elevation: 26 Mil, windage: 18 Mil

Click value - 0.1 Mil

Parallax adjustment - 45 yds - ∞

Tube diameter - 34mm/1.34in

Eyepiece outer diameter - 45 mm

Overall length (inches/mm) - 12.6in/320 mm

Weight (ounces/grams) - 30 oz/850g

Mounting length (inches/mm) - 6.3 in/160 mm

PTL (Power Throw Lever) - Standard

Reticle - MIL-R™

Locking Turret Elevation Feature

Illuminated Reticle