The Arken EP5 redefined what you can expect from a “budget scope”. The EP5 Gen 2 offers improved glass on an already legendary scope. Side-by-side, you’d be hard-pressed to tell them apart. Same 5-25x magnification range. Same 56mm objective. Same 34mm tube. Same tank-like construction. The most obvious external difference sits on the illumination turret: the battery compartment knob.
The Gen 1 had a slightly larger diameter knob with the Arkin logo etched into it. The Gen 2 is sleeker, plainer, and features a simple slot instead. New Federal laws require that any device using coin batteries be tool-accessible to keep curious kids from getting at the CR2032.
The reduced diameter on the illumination knob is actually a smart ergonomic improvement. Since it shares a turret with the parallax focus, the size differential helps your fingers distinguish between the two without looking. No more accidentally cranking your illumination when you meant to dial parallax. Small thing, but thoughtful.
The Gen 2 sports improved glass over the already-impressive Japanese ED glass in the original. And the difference is subtle but noticeable.
The eyebox remains unforgiving. At high magnification, you need to be positioned correctly or you’ll see that black edge creeping in. But that’s physics—high magnification means tight eyebox. Given the price point, it’s not bad.
Side-by-side, the Gen 1 initially appears brighter. But look closer. That “brightness” is actually haze and warm tinting. The Gen 2 offers superior color balance and significantly higher contrast. It’s the difference between an older LCD television and a modern OLED—darker darks, details pop more, and the overall image feels more refined. The Gen 1 was never bad; the Gen 2 is just better.
Arkin changed the landscape for budget precision optics. Before the EP5, getting Japanese ED glass, legitimate tracking turrets, and PRS-ready features meant spending north of two grand. Arkin brought that performance to the rest of us—the ones without tech money or sponsor deals.
The Gen 2 continues to improve on an amazing scope. Same price point. Better glass. Incremental ergonomic improvements. Improved customer service. Is it perfect? No. The eyebox is still tight. But for the money? Nothing touches it.
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RESOLUTION
Group 0 / Element 1
SPECS
EP5 Gen II
Magnification: 5-25x
Objective: 56mm
Tube Size: 34 mm
Eye Relief: 3.4 inches
FOV: 25.3-4.9 ft @100 Yards
Click Adj: 1/10 MIL or 1/4 MOA
Focal Plane: First
Elevation Adj. 32 MIL or 110 MOA
Windage Adj. 16 MIL or 55 MOA
Adj. Per Revolution: 10 MIL/25 MOA
Parallax: 25Yds – Infinity
Weight: 39.2 oz
Battery: CR2032