1. Product Overview
The Feyachi RSL-88 Reflex Sight is designed for rapid target acquisition and enhanced aiming accuracy. It features multiple reticle options, dual color illumination, and an integrated green laser sight. Constructed from durable aluminum alloy, it is built to withstand various environmental conditions.
- Versatile Reticle Options: Offers 4 distinct reticle modes and 2 color options (red/green), each with 5 adjustable brightness levels for optimal visibility in diverse lighting conditions.
- Integrated Green Laser Sight: A Class IIIA green laser (<5mW output) is included for quick target acquisition, improving aiming speed and precision.
- Rugged Construction: Manufactured from high-quality aluminum alloy with an anodized finish, ensuring corrosion resistance, waterproofing, fog proofing, and shock resistance.
- Quick Mount System: Features an integrated 20mm mount for straightforward attachment to equipment equipped with standard Picatinny or Weaver rails.
2. Setup and Installation
2.1 Battery Installation
The reflex sight requires 1 LR44 battery (included). Ensure correct polarity when inserting the battery into its compartment. The laser sight also uses batteries, typically LR44, and comes with an extra set.
2.2 Mounting the Sight
The RSL-88 features an integrated 20mm mount compatible with standard Picatinny or Weaver rails. To install:
- Loosen the mounting screws on the base of the sight.
- Align the sight's base with the rail on your equipment.
- Slide the sight onto the rail until it is in the desired position.
- Tighten the mounting screws securely using the provided wrench. Do not overtighten.

3. Operating Instructions
3.1 Powering On/Off and Brightness Adjustment
The reflex sight features a rotary switch for power control and brightness adjustment. Rotate the dial to select between red or green reticle colors and adjust through 5 brightness levels for each color.

3.2 Reticle Selection
A separate selector allows you to choose between 4 different reticle patterns to suit your preference and aiming requirements.
3.3 Green Laser Operation
The integrated green laser can be activated independently. It includes a pressure switch for momentary or constant-on operation, providing flexibility for tactical maneuvers.


4. Adjustment and Zeroing
The RSL-88 Reflex Sight and its integrated laser can be easily zeroed using the provided wrench for windage and elevation adjustments.
- Windage Adjustment: Use the adjustment screw located on the side of the sight to move the reticle left or right.
- Elevation Adjustment: Use the adjustment screw located on the top of the sight to move the reticle up or down.
- Laser Adjustment: The green laser also has independent windage and elevation adjustments, typically using small hex screws, to align it with the reflex sight's point of impact.
Perform adjustments incrementally and test fire to achieve desired accuracy. The tool ensures both the red dot sight and laser sight are zeroed, maintaining accuracy over time.

5. Maintenance
To ensure the longevity and optimal performance of your Feyachi RSL-88 Reflex Sight, follow these maintenance guidelines:
- Cleaning: Use a soft, lint-free cloth to clean the lenses. For stubborn marks, a small amount of lens cleaning solution can be applied to the cloth. Avoid abrasive materials.
- Storage: Store the sight in a dry, cool place away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods to prevent leakage.
- Inspection: Periodically check all screws and mounts for tightness. Ensure the sight remains securely attached to your equipment.

6. Troubleshooting
If you encounter issues with your Feyachi RSL-88 Reflex Sight, consider the following:
- Reticle Not Illuminating: Check if the battery is correctly installed and has sufficient charge. Replace the battery if necessary. Ensure the brightness dial is turned to an active setting (not 'off').
- Laser Not Activating: Verify the laser battery is installed correctly and charged. Check the pressure switch connection and ensure it is functioning.
- Inaccurate Aiming: Re-zero the sight and laser according to the adjustment instructions. Ensure the sight is securely mounted and not loose.
- Blurred Reticle: Adjust the brightness level. If the issue persists, ensure the lenses are clean.
7. Specifications
| Model Name | RSL-88 |
| Brand | Feyachi |
| Color | Black With Green Laser |
| Material | Aluminum |
| Product Dimensions | 9.1L x 5.3W x 5.8H Centimetres |
| Item Weight | 0.5 Pounds (approx. 226.8 g) |
| Batteries | 1 LR44 batteries required (included) |
| Reticle Type | Dot (4 modes, Red/Green) |
| Laser Output | Class IIIA Green Laser (<5mW) |
| Mount Type | Integrated 20mm Picatinny/Weaver Rail Mount |
| Included Components | Green Laser sight, Pressure Switch, Reflex Sight |
8. Warranty and Support
This Feyachi RSL-88 Reflex Sight comes with a 1-year warranty from the date of purchase. For warranty claims or technical support, please refer to the contact information provided with your product packaging or visit the official Feyachi website.