Cuinfi 5-25×56 FFP Japanese ED Glass Tactical Riflescope

Brief Introduction

The Hurricane 5-25×56 FFP Tactical Riflescope is a high-performance optical tool engineered for AR shooters and precision enthusiasts who demand speed, versatility, and reliability. Crafted with premium Japanese ED Glass and a fully multi-coated lens system, this riflescope delivers exceptional clarity, color fidelity, and light transmission—even in low-light conditions. Its first focal plane (FFP) reticle ensures consistent subtensions across the 5-25X variable magnification range, making it ideal for engaging targets from point-blank to extended distances. With a rugged design, intuitive controls, and industry-leading features, the Hurricane 5-25×56 stands out as a top-tier choice for tactical operations, competitive shooting, and hunting. Whether you’re a seasoned professional or a passionate hobbyist, this riflescope empowers you to hit your mark with confidence.

Initial Set Up

• Reticle Focal Plane (Second Focal Plane vs First Focal Plane)

All riflescope reticles can be termed either first focal plane (FFP)or second focal plane (SFP), with respect to the reticle's internal location within the erector system.An SFP reticle is visually consistent in size and weight across the magnification range; however the subtension values are only accurate on one magnification,typically the highest.In contrast, an FFP reticle will scale with magnification, and their subtensions used for ranging, holdovers, and wind corrections will remain constant. The reticle size will appear larger at higher magnifications, and smaller at low magnification.

• First Focal Plane Reticle

These Cuinfi® 5-25x56 Riflescopes feature a FFP reticle. FFP reticles are located within the riflescope near the windage and elevation turrets. This style of reticle will appear to grow and shrink as you change the magnification.

• Ocular Focus -Fast Focus Eyepiece

The ocular focus is typically a one-time adjustment used to focus the reticle for maximum sharpness. This adjustment is slightly different for every shooter. A clearly focused reticle is a critical component for accurate shooting. When setting up a riflescope, this should be the first adjustment you make and should only need to be changed from user to user, or if your eyesight changes over time.

• Ocular Focus-Fast Focus Eyepiece Adjustment

The Cuinfi 5-25x56 riflescope uses a Fast-Focus Eyepiece designed to easily adjust the focus on the riflescope's reticle.

WARNING: Looking directly at the sun through a riflescope, or any optical instrument, can cause severe and permanent damage to your eyesight.

• Adjusting the Reticle Focus to your Eye

1. Turn the Magnification Adjustment Ring to the highest power. Looking through the optic, turn the Fast-Focus Eyepiece counterclockwise until the reticle is slightly blurry.

2. While looking at a white wall or a clear blue sky, taking short glances through the optic, turn the Fast-Focus Eyepiece clockwise until the reticle is clear and crisp as soon as you look through the optic. This may take several attempts.

Note: You do not want your eye to focus to the reticle, rather you want the reticle in focus to your eye instantly when looking through the optic. Looking away and letting your eyes refocus is important in getting the Fast-Focus Eyepiece set correctly.

Once this adjustment is complete, it will not be necessary to refocus every time you use the rifle scope. However, because your eyesight may change over time,you should recheck this adjustment periodically.

• Parallax

Parallax results when the target image is not on the same optical plane as the reticle within the riflescope. This can cause an apparent movement of the reticle in relation to the target if the shooter's eye is off-axis behind the optic.

• Parallax Adjustment

The Cuinfi® 5-25x56 riflescopes come equipped with a Parallax Adjustment Knob located on the left-hand side of the turret housing. When the parallax is properly adjusted, the shooter should experience no parallax error. Dial the Parallax Adjustment Knob until the target image is as sharp as possible. The yardage numbers on the knob should be used as general reference points only. Check for parallax error by moving your head up, down, left, and right without influencing the gun.The parallax is correct if there is no apparent shift between the reticle and the target image. If you notice any shift,adjust the Parallax Adjustment Knob slightly until all shift is eliminated.

Note: If the reticle and the image are not both simultaneously in focus, readjust your Fast-Focus Eyepiece.

• Magnification Adjustment

The Magnification Adjustment Ring is used to change the riflescope's "power." TheCuinfi® 5-25x56 riflescopes are variable powered optics with a 1x optical design To adjust your optic's magnification, rotate the Magnification Adjustment Ring clockwise, or counterclockwise, to increase or decrease the magnification to your desired level.

TURRETS

The Cuinfi® 5-25x56 riflescope is offered in Milliradian (ML).

Note:The top of both the windage and elevation turret will state what unit the riflescope is laid out in.

• Milliradian (MIL)Adjustment

MIL,which is short for Milliradian and another unit of angular measurement,is defined as 1/1000th of a radian (6.2832 radians in a circle)and 1 MIL equals to 3.438 MOA and 3.6 inches at 100 yards,7.2 inches at 200 yards, and to 36 inches at 1000 yards.1/10 MIL per click takes 10 clicks to move point of impact 3.6 inches at 100 yards Knowing the click value and the number of clicks needed for different distance is critical to dial in elevation and windage adjustments based on the rifle ballistics and wind velocity.

• Elevation and Windage Turrets

Use turrets to adjust the bullet's point of impact.The Cuinfi® 5-25x56 SFIRY riflescope uses a 1/10 MIL turret adjustment on both the Windage and Elevation Turrets. Each click will move the bullet's point of impact roughly. 36"at 100 yards. The turret on the top of the riflescope is the Elevation Turret,which is used to adjust the bullet's point of impact up and down.The turret on the right-hand side of the riflescope is the Windage Turret and is used to adjust the bullet's point of impact left and right.

• Exposed Turrets

The Cuinfi® 5-25x56 riflescopes come equipped with exposed Turrets.This allows the shooter to quickly dial in their elevation and windage adjustments.

• To Make Turret Adjustments:

1. Pull up on the turret so that it is no longer in the locked position.

2. Following the direction arrows,turn the dial in the direction you wish the bullet's point of impact to change. (If you hit high, dial down. If you hit low, dial up. If you hit right,dial left.If you hit left, dial right.)

3. When finished adjusting, push down to lock the turret in place.

• Illumination

The Cuinfi® riflescopes use a variable intensity illuminated reticle to aid in low-light performance.

To Turn Illumination On

To activate the illumination, rotate the lllumination Control Knob in a clockwise direction.

To Adjust Illumination Brightness

Once the illumination is on,continue to rotate the lllumination Control Knob clockwise to cycle through 6 levels of brightness. To decrease the brightness,rotate the lllumination Control Knob counterclockwise.

To Turn Illumination Off

To turn off the illumination,rotate the lllumination Control Knob all the way in either direction to dot.

Note: When the illumination is off,the reticle will appear black.

• Battery Installation/Replacement

To install/change the battery, unscrew the lllumination Control Knob's cap and install a new CR2032 battery with the positive side (+) facing out.

• Replacing the Battery

1. Hold the Parallax Adjustment Knob and Unscrew the lllumination Control Knob cap by spinning counter-clockwise.

2. Remove the CR2032 battery.

3. Replace with a new CR2032 battery with the positive side (+) facing out

4. Reinstall the battery cap by spinning clockwise until tight.

• Riflescope Mounting

To get the best performance from your Cuinfi 1-6x24 riflescope,proper mounting is essential.Although not difficult, the correct steps must be followed.If you are unsure of your abilities,it would be best to use the services of a qualified gunsmith.

• Rings and Bases

The Cuinfi® 5-25x56 riflescope feature a 34mm main tube. Be sure to select a base and matching rings appropriate for your riflescope's mount according to manufacturer's instructions.

Tip:Selecting the proper ring height to provide appropriate clearance between the riflescope and any part of the rifle is paramount.The proper height will also allow for a comfortable head position and aid in establishing a solid and consistent shooting position.A ring's height will not have an adverse effect on accuracy and overall range or performance.

• Eye Relief and Reticle Adjustment

After installing the bottom ring halves on the mounting base,place the riflescope on the bottom ring halves and loosely install the upper ring halves.Before tightening the riflescope ring screws,adjust for maximum eye relief to avoid injury.

1. Set the riflescope to its highest magnification.

2. Move the riflescope fore and aft in the rings until you achieve a full,unobstructed sight picture.

3. Without disturbing the fore-aft placement,rotate the riflescope until the reticle is level.Use a leveling tool(s) such as feeler gauges or bubble levels and a plumb bob to aid in this process.

4. After leveling the reticle,tighten and torque the ring screws down per manufacturer's instructions.Use caution and do not over-tighten ring screws.

Key Features

5-25X Variable Magnification

The 5-25X variable magnification offers unmatched versatility, allowing shooters to switch seamlessly from close-quarters engagement to long-range precision. At 5X, you gain a wide field of view for fast target acquisition, while 25X magnification delivers pinpoint accuracy for distant targets—perfect for scenarios where every detail matters.

Japanese ED Glass & Fully Multi-Coated Lenses

The core of this riflescope lies in its Japanese ED Glass, which minimizes chromatic aberration and enhances image sharpness. Paired with Fully Multi-Coated lenses, it maximizes light transmission (up to 98%) and reduces glare, ensuring clear visuals in dawn, dusk, or bright daylight conditions.

FFP Reticle with Illumination

The FFP reticle (first focal plane) scales with magnification, keeping subtensions accurate for ranging, holdovers, and wind corrections at any power. The integrated illuminated reticle features 6 brightness levels, providing visibility in low-light environments without compromising target detection.

1/10 MIL Turret Adjustments & Locking Turrets

Equipped with 1/10 MIL click adjustments, the Hurricane 5-25×56 allows precise elevation (29 MIL) and windage (26 MIL) tweaks—each click moves the point of impact 0.36 inches at 100 yards. The locking turrets prevent accidental adjustments, while the 0-reset function lets you quickly zero after dialing in corrections.

IP67 Waterproof & Shockproof Design

Rated IP67 waterproof and shockproof (1500G resistance), this riflescope withstands harsh weather, heavy recoil, and rugged handling. It operates reliably in temperatures ranging from -30℃ to 50℃, making it suitable for extreme outdoor conditions.

Design & Materials

34mm Aircraft Grade Aluminium Tube

The riflescope features a 34mm Aircraft Grade Aluminium tube—lightweight yet ultra-durable, offering superior rigidity and recoil resistance. The tube’s large diameter allows for generous adjustment travel, ensuring optimal precision at extended ranges.

Black Matte Hard Anodized Finish

The Black Matte Hard Anodized finish provides a non-reflective surface that blends into tactical environments while resisting scratches, corrosion, and wear. It’s built to withstand years of heavy use without losing its sleek appearance.

Ergonomic Controls & Compact Dimensions

With a total length of 398mm and weight of 990g, the Hurricane 5-25×56 balances portability and performance. The Fast Focus Eyepiece enables quick reticle focusing, while the side-mounted Parallax Adjustment Knob (25yds - ∞) eliminates parallax error for sharper target views. The illumination control knob and battery compartment are intuitively placed for easy access in the field.

Application Scenarios

Tactical Training & Operations

Ideal for law enforcement and military personnel, the Hurricane 5-25×56 excels in tactical training and real-world operations. Its fast target acquisition, precise adjustments, and rugged build make it reliable in high-pressure scenarios—from urban engagements to rural patrols.

Competitive Shooting

For competitive shooters, the FFP reticle, consistent subtensions, and high magnification range are game-changers. Whether participating in long-range rifle matches or 3-gun competitions, this riflescope delivers the precision needed to outperform opponents.

Hunting Medium to Large Game

Hunters targeting deer, elk, or other large game will appreciate the riflescope’s clarity and versatility. The 5-25X magnification works for both thick woods (close-range) and open plains (long-range), while the illuminated reticle aids in tracking moving targets during dawn or dusk hunts.

FAQ

What’s the difference between FFP and SFP reticles?

The FFP reticle (first focal plane) scales with magnification, so subtensions (for ranging/wind corrections) remain accurate at any power. An SFP reticle stays the same size but only has accurate subtensions at the highest magnification—making the FFP design far more versatile for variable-power use.

What battery does the illuminated reticle use?

The reticle requires a CR2032 battery (included). Replacement is simple: unscrew the illumination control knob cap, insert the new battery with the positive (+) side facing out, and tighten the cap.

Is the riflescope compatible with all AR platforms?

Yes—with a 34mm tube, the Hurricane 5-25×56 works with most AR-15, AR-10, and similar platforms. Ensure you use compatible mounting rings and bases (per manufacturer guidelines) for proper fit and eye relief.

What is the eye relief, and why is it important?

The riflescope offers a 90mm eye relief, which protects your eye from recoil while providing a full, unobstructed sight picture. This is critical for AR shooters, as the platform’s recoil can cause eye injury if eye relief is insufficient.

Can the riflescope be used in heavy rain or snow?

Absolutely—its IP67 waterproof rating means it’s dust-tight and can withstand immersion in 1m of water for 30 minutes. It also resists fogging, ensuring clear visuals in humid or cold conditions.