Arken EP5 5-25x56 FFP

Precision / TacticalFFPMRAD34 mm tubeIlluminated

The Arken EP5 5-25x56 FFP is a 5-25×56 FFP scope on a 34 mm tube with a VPR MIL reticle, illuminated and 0.1 MRAD clicks. Across its range the exit pupil runs from an estimated 11.2 mm down to 2.2 mm at 25×, where the twilight factor is 37.4. Its elevation travel is 13th-most of the 53 scopes here that publish one, at 32 MRAD (about 110 MOA).

Approx. price: ~$600
Magnification: 5-25×
Objective: 56 mm
Weight: 39.2 oz

Best for

Dialed shooting at known and unknown distances — PRS-style matches and long-range steel

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Derived optics

estimated

Exit pupil: 11.2–2.2 mm (5×–25×)
Twilight factor: 37.4 at 25×
Zoom ratio: 5×

Exit pupil and twilight factor are computed from the published magnification and objective diameter, not measured. Real exit pupil is also capped by the erector at low magnification, and coatings and glass quality move low-light performance in ways the formula cannot see — read these as comparisons between layouts, not verdicts on scopes.

Specifications

Manufacturer-published figures, read from arkenoptics.com. MOA/MRAD conversions use 3.438 MOA per mil.

Magnification: 5-25×
Objective lens: 56 mm
Focal plane: FFP
Reticle: VPR MIL
Illuminated: Yes
Turret unit: MRAD
Per click: 0.1 MRAD (0.36″ at 100 yd)
Elevation travel: 32 MRAD (≈110 MOA)
Windage travel: 16 MRAD
Zero stop: Yes
Turrets: Exposed
Parallax: Side focus from 25 yd
Eye relief: 3.4″
Field of view: 25.3–4.9 ft at 100 yd
Tube: 34 mm
Length: 14″
Weight: 39.2 oz
Warranty: Lifetime Warranty (manufacturing defects, original purchaser)

Features

FFP
MRAD
34 mm tube
Illuminated
Zero stop
Exposed turrets
Side focus
Lifetime warranty

For it, on paper

+ 32 MIL of total elevation travel in a 34 mm tube, enough to dial well past 1,000 yd with most centerfire cartridges
+ 10 MIL per turret revolution plus the AZS zero stop, so a full long-range come-up rarely needs more than three turns
+ Illuminated FFP VPR reticle and Japanese ED glass at a $599.99 list price
+ Sold in matched MIL/MIL or MOA/MOA turret-and-reticle configurations

Against it, on paper

− 39.2 oz: among the heaviest 5-25x56 scopes in its class, a bench or PRS rifle scope rather than one you carry
− Side focus bottoms out at 25 yd, so it will not focus for close-range rimfire or airgun work
− Eye relief is published as a single 3.4 in figure with no range, tight behind a hard-recoiling magnum
− Windage travel is 16 MIL total, half the elevation travel