Arken OpticsEP-5 7-35x56 Gen 2 FFP Fully Illuminated - Zero Stop - 34mm Tube - SHIPS FROM SPORTS SOUTH
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Arken OpticsEP-5 7-35x56 Gen 2 FFP Fully Illuminated - Zero Stop - 34mm Tube - SHIPS FROM SPORTS SOUTH
ARKEN OPTICS EP-5 GEN II 7-35x56 FFP RIFLE SCOPE — TOR RETICLE
The Arken Optics EP-5 Gen II 7-35x56 FFP (EP5GII-7351TOR) is a first focal plane rifle scope built around Japanese Extremely-Low Dispersion fluoride glass, Arken's TOR (The One Reticle) holdover system, and the AZS (Arken Zero Stop) tactical turret platform. The 7-35x magnification range spans from wide-field hunting and mid-range target work at 7x through the high-magnification precision needed for PRS, NRL, and extreme long-range engagements at 35x. The 56mm objective and 34mm tube work together to deliver generous light transmission and sufficient internal adjustment range for the demanding elevation travel required in long-range shooting.
In the FFP configuration, the TOR reticle's MIL hash marks scale proportionally with magnification, meaning the same holdover grid remains accurate whether you're shooting at 10x or 35x. The TOR's holdover grid extends to 16 MIL and beyond — deep enough to cover the extreme ballistic drop of .22 LR at distance, extended-range centerfire cartridges, or any application where conventional reticle systems run out of usable holdovers before the target does. The fully illuminated reticle adds low-light and dawn/dusk visibility for hunting and field applications. AZS zero stop turrets ensure the elevation turret cannot be dialed below zero, preventing on-the-clock errors during competition or timed engagements.
Extremely-Low Dispersion (ED) fluoride glass is sourced from Japanese optical manufacturers and selected for its ability to minimize chromatic aberration — color fringing at high-contrast edges. The result is a cleaner, sharper image across the magnification range, particularly at 35x where optical flaws compound most visibly.
First Focal Plane placement means the TOR reticle grows and shrinks with the image. At every magnification setting, the MIL subtensions remain true to their labeled values, eliminating the need to mentally correct holdovers for the current power setting. The TOR grid extends to 16 MIL and beyond for extreme ballistic drop applications.
After zeroing, the Arken Zero Stop system is set to the zero position on the elevation turret. The mechanical stop prevents rotation below zero, so even in competition pressure or darkness, spinning down too far is not possible. Consistent return-to-zero is mechanically enforced rather than estimated by feel or by counting clicks.
A 34mm maintube (vs. the common 30mm standard) provides greater internal adjustment travel for elevation and windage — critical for long-range use where large dial-up corrections are the norm. The 56mm objective lens collects additional light over smaller apertures, supporting both high-magnification clarity and low-light performance.
Key Features
- ED Japanese fluoride glass — Extremely-Low Dispersion optics minimize chromatic aberration for clean, high-contrast image quality across the full magnification range
- First Focal Plane (FFP) — reticle scales with image; TOR subtensions accurate at every magnification setting without any conversion
- TOR reticle (The One Reticle) — ultra-deep holdover grid extending to 16 MIL and beyond; purpose-built for PRS, NRL, ELR, and .22 LR precision shooting
- Fully illuminated reticle — adds low-light visibility for hunting, field use, and dawn/dusk shooting conditions
- AZS (Arken Zero Stop) tactical turrets — mechanical stop at the zero position prevents over-rotation below zero; consistent and reliable return-to-zero
- 7-35x magnification range — wide versatility from field-of-view-friendly 7x to precision 35x maximum for positional or bench work
- 56mm objective lens — large aperture supports light transmission and sustained image quality at high magnification
- 34mm maintube — larger tube diameter provides expanded internal elevation and windage travel vs. 30mm standards
- Parallax adjustment to 25 yards — close-focus parallax setting supports .22 LR, airgun, and short-range precision applications
- 3.5" eye relief — standard long-range scope eye relief
- Matte black finish — non-reflective field finish
TOR Reticle — Built for Competition and ELR
Most precision rifle reticles offer holdover marks to 10-12 MIL — sufficient for typical centerfire cartridges at practical ranges. The TOR reticle extends the holdover grid to 16 MIL and beyond to serve a specific set of use cases where that depth is required.
In PRS and NRL competition, stages may require holding over for different distance targets in rapid sequence without time to dial. A 16+ MIL grid gives competitors usable holdovers at ranges where shallower grids simply run out of marks.
For .22 LR precision shooting, rimfire cartridges drop dramatically at distance due to subsonic velocity and high ballistic coefficient penalties. A .22 LR at 300 yards can require 10-15+ MIL of holdover depending on ammunition and conditions — a range the TOR is specifically engineered to cover.
For extreme long-range (ELR) and extreme drop compensation applications, the TOR provides a grid deep enough to be usable where other reticles present blank space below their lowest marked holdover.
Quick Specs
- BrandArken Optics
- MPNEP5GII-7351TOR
- UPC850083375003
- GenerationEP-5 Gen II
- Magnification7-35x
- Objective Lens56mm
- Tube Diameter34mm
- Focal PlaneFirst Focal Plane (FFP)
- ReticleTOR (The One Reticle)
- IlluminationFully Illuminated
- TurretsAZS Tactical Zero Stop
- GlassED Japanese Fluoride
- Eye Relief3.5"
- Field of View16.66–3.34 ft @ 100 yd
- Parallax25 yd – Infinity
- Length16.0"
- Weight42.0 oz
- FinishMatte Black
- ApplicationHunting / Shooting / Sporting
- List Price$629.99
On a Second Focal Plane (SFP) scope, the reticle subtensions are only correct at one specific magnification — usually maximum power. At any other magnification, the marks are either too spread or too compressed to give accurate MIL readings without applying a correction factor. On a First Focal Plane scope like the EP-5 Gen II, the reticle image scales with the zoomed image. At 7x the reticle appears small; at 35x it appears large — but at every setting, the MIL grid remains dimensionally accurate. For a scope with a 5:1 zoom ratio like 7-35x, the difference is significant: on an SFP scope, using the holdover grid at 14x instead of 35x would produce a 2.5x error in your holdover value. On the EP-5 Gen II's FFP design, the same holdover mark means the same physical angle regardless of where the power ring sits.
Frequently Asked Questions
What does "ED fluoride glass" mean for image quality?
ED stands for Extremely-Low Dispersion. Standard optical glass disperses different wavelengths of light at slightly different angles as light passes through, which creates color fringing (chromatic aberration) at high-contrast edges in the image — a purple or green halo around objects viewed through the scope, especially at high magnification. ED fluoride glass is formulated with abnormal partial dispersion characteristics that cause different wavelengths to focus at nearly the same point, dramatically reducing this fringing. At 35x magnification, any uncorrected chromatic aberration becomes very visible; the EP-5 Gen II's Japanese ED fluoride glass brings this down to a level that serious competition and long-range shooters expect from quality optics in this class.
How does the AZS (Arken Zero Stop) work?
The Arken Zero Stop (AZS) is a mechanical feature built into the elevation turret. After the scope is zeroed at your chosen distance, you set the zero stop mechanism to mark that position as the hard lower limit of the turret's rotation. When you dial up to compensate for bullet drop at extended range and then dial back down, the turret stops at zero — it physically cannot continue rotating past that point. This prevents two common errors: accidentally dialing below zero when returning from a dial-up, and losing track of your zero position under competition pressure or in poor light. Return-to-zero becomes a tactile mechanical confirmation rather than a counting exercise.
What is the TOR reticle, and who is it designed for?
TOR stands for "The One Reticle." It is Arken's competition-oriented holdover reticle featuring an ultra-deep MIL grid extending to 16 MIL and beyond — significantly deeper than the 10-12 MIL common in most precision rifle reticles. This depth is specifically engineered for three shooting disciplines: PRS and NRL competition, where rapid multi-distance holdovers are required without time to dial; .22 LR precision shooting at extended distances, where subsonic rimfire cartridges have dramatically more drop than centerfire rounds; and extreme long-range (ELR) and extended-range engagements where conventional reticles run out of usable holdover marks before the target range does. Because the EP-5 Gen II is FFP, the TOR subtensions are accurate at all magnification settings.
Why does the parallax adjustment go down to 25 yards?
Standard long-range rifle scopes typically set minimum parallax at 50-100 yards, which covers most centerfire applications. The EP-5 Gen II's 25-yard minimum is designed specifically to support .22 LR and airgun precision shooting, where targets are often set at 25-100 yards. Parallax error becomes visible when the shooter's eye moves slightly off the optical axis — the reticle appears to shift relative to the target, causing aiming error. At 25 yards, parallax from a centerfire scope set to 100 yards would be substantial; the EP-5 Gen II's close-focus parallax correction ensures the target and reticle are in the same focal plane at those distances, giving accurate aiming across the full range of its intended applications.
What rings or mounts does the EP-5 Gen II require?
The EP-5 Gen II uses a 34mm maintube diameter, which requires 34mm scope rings or a 34mm-compatible scope mount. Standard 30mm rings will not fit. For precision long-range applications, a one-piece cantilever or rail-mount system with 34mm diameter is typical. Mount height selection depends on your rifle's receiver height, barrel profile at the objective bell, and whether you are running a bubble level or other accessories. Many PRS and long-range shooters running this scope class use 34mm rings at 0 MOA or 20 MOA cant depending on their cartridge's required dial-up at maximum engagement range.
How heavy is this scope, and is 42 oz typical for this class?
At 42 oz (2.6 lbs), the EP-5 Gen II falls within the typical weight range for 7-35x class FFP competition scopes with 34mm tubes and 56mm objectives. Scopes in this specification category generally run 30-50 oz depending on construction materials and feature set. For positional PRS shooting where rifle weight matters, 42 oz is a notable figure — paired with a 34mm mount, a complete optics assembly typically adds 3-4 lbs to the rifle's overall weight. Shooters building a competition package around strict weight limits should account for the full optics assembly (scope, rings, and any accessories) when calculating total rifle weight.
About Arken Optics
Arken Optics is an American optics company that designs and delivers precision rifle scopes, red dots, and accessories aimed at the performance-per-dollar expectations of the competitive and long-range shooting community. The EP-5 series is Arken's flagship first focal plane line, built on ED glass from Japanese optical sources and designed around the reticle options, turret systems, and tube specifications that PRS, NRL, and long-range hunters expect. Arken Optics is headquartered in the United States and sells direct and through authorized dealers.