Arken
Arken EP5 5-25x56
$499.98Cheaper
2 sellers$399.99–$499.98under listread
Best Rifle Scopes · head-to-head
Arken EP5 5-25x56 vs Primary Arms GLx 4-16x50 FFP
A sourced, side-by-side comparison. Arken EP5 5-25x56 is cheaper at $499.98. Every spec and price links to its source.
Primary Arms
Primary Arms GLx 4-16x50 FFP
$749.99
Which is better: the Arken EP5 5-25x56 or Primary Arms GLx 4-16x50 FFP?
The Primary Arms GLx 4-16x50 FFP wins 1 of the 1 specs we compare head to head; the other wins 0. The Arken EP5 5-25x56 is the cheaper at $499.98. Get the Primary Arms GLx 4-16x50 FFP for the stronger spec sheet, the Arken EP5 5-25x56 to spend less.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Arken EP5 5-25x56 |  Primary Arms GLx 4-16x50 FFP |
|---|---|---|
| US price | $499.98 | $749.99 |
| Brand | Arken | Primary Arms |
| Released | — | — |
| Magnification range | 5-25x | 4-16x |
| Objective diameter (mm) | 56 | 50 |
| Tube diameter (mm) | 34 | 30 |
| Focal plane | FFP | FFP |
| Reticle illuminated | Yes | Yes |
| Elevation travel mil | 32 | — |
| Click value | 0.1 MRAD | 0.1 MIL |
| Field of view (ft) | 25.3 | — |
| Eye relief (in) | 3.4 | 3.5 |
| Parallax type | side-focus | side-focus |
| Length (in) | 14 | 13.8 |
| Weight (oz) | 39.2 | 23.5 |
Sources — Arken EP5 5-25x56: arkenopticsusa.com (verified 2026-10-20). Primary Arms GLx 4-16x50 FFP: primaryarmsoptics.com (verified 2026-07-11).
What's the difference between the Arken EP5 5-25x56 and Primary Arms GLx 4-16x50 FFP?
Where the two actually differ on the specs we track (7 of 12). Matching specs are omitted.
- Magnification range: Arken EP5 5-25x56 5-25x vs Primary Arms GLx 4-16x50 FFP 4-16x
- Objective diameter (mm): Arken EP5 5-25x56 56 vs Primary Arms GLx 4-16x50 FFP 50
- Tube diameter (mm): Arken EP5 5-25x56 34 vs Primary Arms GLx 4-16x50 FFP 30
- Click value: Arken EP5 5-25x56 0.1 MRAD vs Primary Arms GLx 4-16x50 FFP 0.1 MIL
- Eye relief (in): Arken EP5 5-25x56 3.4 vs Primary Arms GLx 4-16x50 FFP 3.5
- Length (in): Arken EP5 5-25x56 14 vs Primary Arms GLx 4-16x50 FFP 13.8
- Weight (oz): Arken EP5 5-25x56 39.2 vs Primary Arms GLx 4-16x50 FFP 23.5