# Nightforce ATACR 4-16x42 F1 vs Arken EP5 5-25x56: specs and price compared

A sourced, side-by-side comparison of the Nightforce ATACR 4-16x42 F1 (Nightforce) and Arken EP5 5-25x56 (Arken) among rifle scopes. Arken EP5 5-25x56 is the cheaper of the two at $499.98.

## Side by side

| Spec | Nightforce ATACR 4-16x42 F1 | Arken EP5 5-25x56 |
| --- | --- | --- |
| US price | $2900 | $499.98 |
| Brand | Nightforce | Arken |
| Magnification range | 4-16x | 5-25x |
| Objective diameter (mm) | 42 | 56 |
| Tube diameter (mm) | 34 | 34 |
| Focal plane | FFP | FFP |
| Reticle illuminated | Yes | Yes |
| Elevation travel mil | 26 | 32 |
| Click value | .1 MRAD | 0.1 MRAD |
| Field of view (ft) | 26.9 | 25.3 |
| Eye relief (in) | 3.5 | 3.4 |
| Parallax type | side-focus | side-focus |
| Length (in) | 12.6 | 14 |
| Weight (oz) | 30 | 39.2 |

## Key differences

- Magnification range: Nightforce ATACR 4-16x42 F1 4-16x vs Arken EP5 5-25x56 5-25x
- Objective diameter (mm): Nightforce ATACR 4-16x42 F1 42 vs Arken EP5 5-25x56 56
- Elevation travel mil: Nightforce ATACR 4-16x42 F1 26 vs Arken EP5 5-25x56 32
- Click value: Nightforce ATACR 4-16x42 F1 .1 MRAD vs Arken EP5 5-25x56 0.1 MRAD
- Field of view (ft): Nightforce ATACR 4-16x42 F1 26.9 vs Arken EP5 5-25x56 25.3
- Eye relief (in): Nightforce ATACR 4-16x42 F1 3.5 vs Arken EP5 5-25x56 3.4
- Length (in): Nightforce ATACR 4-16x42 F1 12.6 vs Arken EP5 5-25x56 14
- Weight (oz): Nightforce ATACR 4-16x42 F1 30 vs Arken EP5 5-25x56 39.2

## Sources

- Nightforce ATACR 4-16x42 F1: https://www.nightforceoptics.com/riflescopes/atacr/atacr-4-16x42-f1 (nightforceoptics.com, verified 2026-07-11)
- Arken EP5 5-25x56: https://www.arkenopticsusa.com/products/ep-5-5-25x56-ffp-illuminated-vpr-zero-stop-34mm-tube (arkenopticsusa.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/rifle-scopes/nightforce-atacr-4-16x42-f1-vs-arken-ep5-5-25x56/
Cite: Per The Front Desk Review, Nightforce ATACR 4-16x42 F1 ($2900) vs Arken EP5 5-25x56 ($499.98) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/rifle-scopes/nightforce-atacr-4-16x42-f1-vs-arken-ep5-5-25x56/
License: CC BY 4.0.