Vortex
Vortex Razor HD Gen III 6-36x56
$4799.99
Best Rifle Scopes · head-to-head
Vortex Razor HD Gen III 6-36x56 vs Primary Arms GLx 4-16x50 FFP
A sourced, side-by-side comparison. Primary Arms GLx 4-16x50 FFP is cheaper at $699.99. Every spec and price links to its source.
Primary Arms
Primary Arms GLx 4-16x50 FFP
$699.99Cheaper
Which is better: the Vortex Razor HD Gen III 6-36x56 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 Primary Arms GLx 4-16x50 FFP is the cheaper at $699.99. The Primary Arms GLx 4-16x50 FFP both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Vortex Razor HD Gen III 6-36x56 | Primary Arms GLx 4-16x50 FFP |
|---|---|---|
| US price | $4799.99 | $699.99 |
| Brand | Vortex | Primary Arms |
| Released | — | — |
| Magnification range | 6-36x | 4-16x |
| Objective diameter (mm) | 56 | 50 |
| Tube diameter (mm) | 34 | 30 |
| Focal plane | FFP | FFP |
| Reticle illuminated | Yes | Yes |
| Elevation travel mil | 36.1 | — |
| Click value | 0.1 MRAD | 0.1 MIL |
| Field of view (ft) | 21.3 | — |
| Eye relief (in) | 3.5 | 3.5 |
| Parallax type | side-focus | side-focus |
| Length (in) | 15.3 | 13.8 |
| Weight (oz) | 45.1 | 23.5 |
Sources — Vortex Razor HD Gen III 6-36x56: vortexoptics.com (verified 2026-07-11). Primary Arms GLx 4-16x50 FFP: primaryarmsoptics.com (verified 2026-07-11).
What's the difference between the Vortex Razor HD Gen III 6-36x56 and Primary Arms GLx 4-16x50 FFP?
Where the two actually differ on the specs we track (6 of 12). Matching specs are omitted.
- Magnification range: Vortex Razor HD Gen III 6-36x56 6-36x vs Primary Arms GLx 4-16x50 FFP 4-16x
- Objective diameter (mm): Vortex Razor HD Gen III 6-36x56 56 vs Primary Arms GLx 4-16x50 FFP 50
- Tube diameter (mm): Vortex Razor HD Gen III 6-36x56 34 vs Primary Arms GLx 4-16x50 FFP 30
- Click value: Vortex Razor HD Gen III 6-36x56 0.1 MRAD vs Primary Arms GLx 4-16x50 FFP 0.1 MIL
- Length (in): Vortex Razor HD Gen III 6-36x56 15.3 vs Primary Arms GLx 4-16x50 FFP 13.8
- Weight (oz): Vortex Razor HD Gen III 6-36x56 45.1 vs Primary Arms GLx 4-16x50 FFP 23.5