Cuinfi 1-8×24 SFP 30MM Illumination Hunting Riflescope

Brief Introduction

For AR shooters and hunting enthusiasts who demand speed, versatility, and precision in every shot, the Cuinfi® Abyss 1-8×24 Riflescope stands out as a game-changing choice. This 30MM Tube SFP (Second Focal Plane) riflescope is engineered to deliver exceptional performance across distances, from point-blank engagements to extended-range targeting. With a variable magnification range of 1-8x and a 24mm objective lens, it strikes the perfect balance between compact design and powerful optical performance.

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.

• Second Focal Plane Reticle

These Cuinfi^® 1-8x24 riflescope features a second focal plane(SFP)reticle. SFP reticles are located within the riflescope near the magnification ring. This style of reticle will appear consistent throughout the entire magnification range.

Note: The Cuinfi^® 1-8x24 riflescope reticle are calibrated at the highest magnification.For the hashmark's value to be true,you need to be on the highest magnification.

• Parallax Adjustment

The Cuinfi^® 1-8x24 riflescope is non-adjustable for parallax correction and is set from the factory to be parallax-free at 100 yards(90 meters). When shooting at distances other than 100 yards, using good consistent shooting form and cheek weld will prevent most problems with parallax.

• Magnification Adjustment

The Magnification Adjustment Ring is used to change the riflescope's "power." The Cuinfi^® 1-8x24 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.

• 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^® 1-8x24 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.

TURRETS

The Cuinfi^® 1-8x24 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^® 1-8x24 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 riflescopemis 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.

• Capped Turrets

The Cuinfi^®1-8x24 riflescopes come equipped with Capped Turrets.This protects the turrets from accidental adjustment while out in the field,in transit,or in storage. You will need to remove the caps prior to making any adjustments on the turrets.

Note:The riflescope is still waterproof with the caps removed.

• To Make Turret Adjustments:

1. Remove the turret caps by spinning them counterclockwise.

2. Following the directional arrows,turn the dials 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,replace the turret caps.

Note: The reticle will move in the opposite direction of the turret dials. When you dial up,the reticle will move down, forcing you to aim higher, changing your point of impact upward.

• 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^®i 1-8x24 riflescope feature a 30mm 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

Optical Performance Excellence

The Abyss 1-8×24 Riflescope is equipped with fully multi-coated lenses that maximize light transmission, resulting in bright, crisp, and clear sight pictures—even at dawn, dusk, or in dense woodland. Its second focal plane (SFP) reticle maintains a consistent size across all magnification levels, with subtension values calibrated for accuracy at the highest magnification (8x). The 1/10 MIL per click adjustment on both elevation and windage turrets enables precise ballistic corrections, with each click moving the point of impact by approximately 0.36 inches at 100 yards. Additionally, the scope features a fast focus eyepiece, allowing shooters to quickly adjust reticle sharpness for personalized clarity.

User-Friendly Adjustment Systems

This riflescope comes with capped turrets that protect against accidental adjustments during field use, transit, or storage. The turrets offer 34 MIL of elevation and windage adjustment range, with 10 MIL of travel per rotation, and support a convenient zero-reset function for quick recalibration. Unlike many high-end scopes, it is factory-set to be parallax-free at 100 yards, eliminating the need for manual parallax adjustment and simplifying operation for shooters of all skill levels.

Reliable Illumination Function

The variable intensity illuminated reticle features 6 brightness levels, adjustable via a user-friendly control knob. This function enhances target acquisition in low-light environments, while the reticle reverts to a black, non-illuminated state when turned off, ensuring no interference with daytime shooting. The illumination system is powered by a CR2032 battery, which is easy to install and replace.

Design & Materials

Durable Construction

Built with aircraft-grade aluminium for the main tube, the Abyss 1-8×24 Riflescope boasts exceptional durability and resistance to recoil, impacts, and harsh weather conditions. The black matte hard anodized finish not only gives it a sleek, tactical appearance but also provides corrosion resistance and reduces glare in sunlight—critical for stealth during hunting.

Ergonomic & Compact Design

With a total length of 273mm and a weight of 610g, this riflescope is compact and lightweight enough to avoid adding excessive bulk to your rifle, while still maintaining a robust structure. The 90mm eye relief ensures a comfortable shooting experience, even with high-recoil rifles like the Mosin, and prevents eye fatigue during extended use.

Practical Accessory Compatibility

Designed for a 30mm main tube, the scope is compatible with a wide range of mounting rings and bases. Shooters can choose between standard aluminium rings or upgrade to steel quick-release rings (available for a small extra fee) for enhanced stability and convenience.

Application Scenarios

Outdoor Hunting

The Abyss 1-8×24 Riflescope is ideal for hunting scenarios, whether you are pursuing whitetail deer in wooded areas or elk in the backcountry. Its 1x magnification delivers red dot-like speed for close-quarters shots, while 8x magnification allows for precise long-range targeting up to 500 yards. The illuminated reticle shines in low-light conditions, such as early morning or late evening hunts, when game is most active.

Tactical Shooting & Training

For AR platform users and tactical shooters, this scope’s versatility shines in dynamic shooting environments. The ability to shoot with both eyes open at 1x magnification boosts situational awareness, while the precise turret adjustments make it suitable for carbine courses and competitive shooting events. It has been proven to hold zero reliably through rigorous training sessions.

Recreational & Competitive Shooting

Whether you are practicing at the shooting range or participating in precision shooting competitions, the Abyss 1-8×24 Riflescope’s combination of clarity, adjustability, and durability ensures consistent performance. Its SFP reticle design and MIL-based adjustments align with professional shooting standards, making it a great choice for both beginners and seasoned shooters.