DiscoveryOpt ED-PRS Gen2 5–25×56 SFIR FFP-Z – Precision Rifle Scope Without Compromise

The second generation of the DiscoveryOpt ED-PRS series was built for shooters who refuse to settle for average. In the world of precision rifle shooting – and especially in PRS (Precision Rifle Series) competition – the quality of your optic is not a secondary consideration: it determines whether your first shot lands on target or not. The ED-PRS Gen2 5–25×56 SFIR FFP-Z answers that challenge with premium optics, precision mechanics, and a robust, reliable build at a genuinely competitive price.

Japanese ED Optics – Quality You Can See

At the heart of this rifle scope are Japanese HOYA ED (Extra-low Dispersion) lenses, fully multi-coated (FMC) across all surfaces. This combination minimises chromatic aberration, maximises light transmission, and produces a crystal-clear, high-contrast image – even at full 25× magnification, where the image quality of cheaper optics noticeably deteriorates. In low-light conditions, the 56 mm objective lens gathers ample light, while the premium coatings ensure sharpness and contrast throughout.

First Focal Plane Reticle – Accurate Readings at Every Magnification

The ED-PRS Gen2 features a first focal plane (FFP) reticle, meaning the reticle scales with the image as you adjust the zoom. Every MOA marking and holdover value on the etched reticle remains accurate at any magnification – no conversion required. The centre is illuminated in red with 6 brightness levels, making target acquisition easy in low-light conditions and at dusk. The etched glass reticle is more durable than wire-type alternatives.

34 mm Tube – The Foundation of Large Adjustment Range

The 34 mm one-piece machined aircraft-grade aluminium tube is not only massively built and shockproof – the larger diameter (compared to the traditional 30 mm) enables a significantly greater internal adjustment range. The ED-PRS Gen2 provides 122 MOA of elevation and 60 MOA of windage adjustment – an outstanding figure in this price category. In practice, this means that extreme long-range dialling often requires no external ballistic aids such as angled bases. The nitrogen-purged, sealed tube is fully waterproof, fogproof, and shockproof; the 1500 G shock rating handles the recoil of even the heaviest calibres without issue.

Zero-Stop Turrets – Fast and Reliable Return to Zero

The tactical adjustment turrets click at 0.25 MOA per increment, with loud and crisp clicks providing clear, unambiguous feedback with every adjustment. The Zero-Stop function allows you to lock in your zero: returning to that position meets a physical stop, preventing over-rotation and error. Whether in the field or on the competition stage, the ability to return to zero with a single motion after dialling is invaluable. Turret caps can be locked to prevent accidental adjustment.

Side-Focus Parallax from 25 Yards to Infinity

The left-side parallax adjustment dial focuses from 25 yards (~23 m) to infinity. This remarkably close minimum value gives the scope exceptional versatility: it can be used on air rifles and rimfire platforms for short-range target work, while at the upper end of the scale, parallax-free images are guaranteed at distances beyond 1000 m.

Specifications

• Magnification — 5–25×
• Objective diameter — 56 mm
• Focal plane — First (FFP)
• Reticle — Etched MOA, illuminated (red, 6 levels)
• Tube diameter — 34 mm
• Click value — 0.25 MOA (1/4 MOA)
• Elevation adjustment range — 122 MOA
• Windage adjustment range — 60 MOA
• Parallax — 25 yards to infinity (side wheel)
• Field of view — 7.5 m / 1.5 m at 100 yards (5× / 25×)
• Eye relief — 8.7 cm (5×) / 8.5 cm (25×)
• Exit pupil — 11.2–2.2 mm
• Length — 415 mm
• Weight — 1255 g
• Shock rating — 1500 G
• Sealing — Waterproof, fogproof, shockproof; nitrogen-purged

Comparison with Similar Products

The DiscoveryOpt ED-PRS Gen2 5–25×56 delivers premium features that typically command a much higher price with other manufacturers. The Vortex Venom 5–25×56 FFP and the Arken SH4 Gen II are popular competitors in a similar category – however, the Discovery's 122 MOA elevation adjustment range significantly exceeds the approximately 90 MOA offered by those models. Zero-Stop functionality is either unavailable at this price point with competing brands, or implemented in a less user-friendly way. The combination of ED glass and full multi-coating brings image quality to a level that competes with the far more expensive Delta Stryker or Element Theos – at a fraction of the cost.

Who Is This Scope For?

The DiscoveryOpt ED-PRS Gen2 5–25×56 SFIR FFP-Z in MOA configuration is primarily recommended for PRS and precision rifle competitors who need a reliable, large-adjustment-range, FFP-reticle optic at a competitive price. It is also an excellent choice for long-range hunters pursuing game at extreme distances in mountain or open-country settings. The 25-yard minimum parallax setting further extends the scope's versatility for air rifle and rimfire applications. We recommend it to anyone seeking quality, durable optics that will deliver reliable performance not just today, but for many years to come.

What Users Say

Based on feedback from the Precision Rifle Network, the Reddit r/longrange community, and numerous retailer review sections, user opinion is consistently positive. The most frequently highlighted strengths:

• Image clarity — Multiple users note that the image quality at 25× magnification exceeded their expectations; some compare it to optics costing two to three times as much.
• Turret precision — Clicks are firm and decisive, tracking is accurate, and zeroing is quick. Several testers note that the Zero-Stop is easier to use than on competing models.
• Value for money — Users consistently highlight that the package contents (rings, sunshade, bubble level, lens cloth) make the overall value exceptional.
• Trade-off — The scope's weight (1255 g) and size are larger than some rivals; however, most users accept this as an inherent characteristic of the robust and durable build.

Sources: Precision Rifle Network forum, Reddit r/longrange and r/scopes communities, and customer review sections of various European and North American retailers (2023–2024).